Stock Trading Canary

Snapshot date: 2026-10-18 · Built: 2026-10-19T15:40:51+00:00 · Publication status: REVIEW

← United States · 中文

COMPANY RESEARCH

Attovia Therapeutics, Inc.

ATTO · United States · Healthcare

INSIDER SIGNAL

Insider activity score:85.1 / 100

6 insiders · 8 purchase events · $63.95m net purchases

US #18 · United States #18

WHY THIS SIGNAL?

Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35

How many distinct insiders bought in the cluster

Purchase size+24.4 / 25

Purchase value relative to company size and liquidity

Role+6.0 / 20

The seniority and relevance of participating insiders

Recency+3.0 / 10

How recently the purchases occurred

Conviction+8.8 / 10

How clearly buying stands out from other activity

What is holding the score back?

  • ⚠ Insider role contributes less on the current role scale
  • ⚠ Purchase activity is becoming less recent
  • ✓ Broad buyer cluster · 4+ distinct filers

The role contribution follows the US model's seniority ladder.

BUYING PROFILE

8 events · 6 insiders · 180d

Cluster 100%Repeat 0%Independent 0%Large 0%

Percentages are mutually exclusive and sum to 100%.

Buying concentration

28%

Largest buyer:Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · 20.57m USD
Gross qualified purchase transaction-line value:72.94m USD

The headline $ total is net buying for the screen; this module uses gross qualified purchase transaction-line values in the filing currency, so the amounts can differ. The current 15-day buyer-breadth input counts distinct buyers; value concentration is disclosed separately here.

This is a ranking under the current US screening rules—not a probability of gain, return forecast, or buy recommendation.

Key purchase quotes (filing currency)

FilerPrice per unitTrade date
Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.17 USDAug 6, 2026
WALSH COLIN17 USDAug 6, 2026
Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLC17 USDAug 6, 2026
Model details

Cluster breakdown (does not change the score)

15-day buyer breadth (count)
6 distinct reported filers
Peak time window
2026-08-05 to 2026-08-06
Current breadth input
1.000 (capped at 4+ buyers)
Buyer independence
Not yet measured; related-party fields are not cross-market comparable

What the filings show

Insider vs stock price

2 purchase day(s), 13 purchase line(s) in the 180-day window. 1 sale day(s), 88 sale line(s).

Daily close (USD)Day with an insider purchaseTwo or more insiders the same dayDay with an insider sale
161820222426Sep 2026Oct2026-08-05 · 88 sale line(s) · close since that day -26.0%2026-08-05 · 4 purchase line(s) · 2 insider(s) · close since that day -26.0%2026-08-06 · 9 purchase line(s) · 6 insider(s) · close since that day -20.5%16.21last close09 Oct

Markers sit on the closing price of the transaction day. They show when insiders traded, not the price they paid or received. "Since" compares that day's close with the last close shown; it is what happened at this company, not a forecast.

Insider timeline

6 insiders bought on the same day, 6 Aug: 5 Associated person, 1 Board member. The share closed at 20.38 that day and at 16.21 most recently (−20.5%). That week 131 companies across United States disclosed insider purchases, an ordinary week (15 of the last 26). 2 of the buyers also disclosed a sale in the window.

Several insiders within 15 days: 2026-08-06 – 2026-08-06WALSH COLINWALSH COLINDirectorBoard memberBroad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.Broad Street Principal Inves…OtherAssociated personFHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.FHMLS XI, L.L.C.; FHMLS XI, …TenPercentOwnerAssociated personGreen Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLCGreen Jeremy; Redmile Biopha…TenPercentOwnerAssociated personSanofiSanofiTenPercentOwnerAssociated personvenBio Global Strategic Fund IV, L.P.venBio Global Strategic Fund…TenPercentOwnerAssociated person2026-08-05 · Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · sale · 4,494,495 USD2026-08-05 · WALSH COLIN · sale · 4,494,495 USD2026-08-05 · Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · purchase · 3,570,000 USD2026-08-05 · WALSH COLIN · purchase · 3,570,000 USD2026-08-06 · Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · purchase · 17,000,000 USD2026-08-06 · FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P. · purchase · 9,999,995 USD2026-08-06 · Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLC · purchase · 10,200,000 USD2026-08-06 · Sanofi · purchase · 5,100,000 USD2026-08-06 · WALSH COLIN · purchase · 17,000,000 USD2026-08-06 · venBio Global Strategic Fund IV, L.P. · purchase · 6,499,984 USD2026-04-20 to 2026-04-26: 74 companies2026-04-27 to 2026-05-03: 96 companies2026-05-04 to 2026-05-10: 151 companies2026-05-11 to 2026-05-17: 232 companies2026-05-18 to 2026-05-24: 259 companies2026-05-25 to 2026-05-31: 171 companies2026-06-01 to 2026-06-07: 192 companies2026-06-08 to 2026-06-14: 172 companies2026-06-15 to 2026-06-21: 163 companies2026-06-22 to 2026-06-28: 108 companies2026-06-29 to 2026-07-05: 93 companies2026-07-06 to 2026-07-12: 80 companies2026-07-13 to 2026-07-19: 79 companies2026-07-20 to 2026-07-26: 70 companies2026-07-27 to 2026-08-02: 77 companies2026-08-03 to 2026-08-09: 131 companies2026-08-10 to 2026-08-16: 200 companies2026-08-17 to 2026-08-23: 218 companies2026-08-24 to 2026-08-30: 184 companies2026-08-31 to 2026-09-06: 175 companies2026-09-07 to 2026-09-13: 139 companies2026-09-14 to 2026-09-20: 186 companies2026-09-21 to 2026-09-27: 134 companies2026-09-28 to 2026-10-04: 130 companies2026-10-05 to 2026-10-11: 73 companies2026-10-12 to 2026-10-18: 72 companiesCompanies disclosing purchases, per weekMayJunJulAugSepOct

Tap an item for what it means.

●A purchase: the bigger the dot, the more was bought

Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.

×A sale

A cross is one insider's sales on one day. People sell to pay tax, to cash in share awards or to hold less of one company, so a sale says less than a purchase does. When someone bought and sold on the same day, the cross sits beside the dot. The totals are under “Purchases against sales” below.

▮Purple band: several insiders bought within 15 days

The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 6 Aug, with 6 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.

Blue line: this share's price, −26.0% over these six months

The closing price of each day, from 21.90 on 2026-08-05 to 16.21 on 2026-10-09. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.

Dashed line: the typical stock on the same exchange, −8.1%

Taken from the 1282 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −26.0%, the typical one −8.1%, 17.9 points behind. It is not an index and not a comparison within one industry.

▂Grey bars: companies across United States disclosing purchases each week

A taller bar is a week in which more companies disclosed insider purchases. The purple bar is the week of the band above: 131 companies, number 15 of the last 26 weeks. If that week was a peak anyway, buying together is less special than it looks.

This company: insiders buying per month, last 12 months

Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
6Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
WALSH COLINBoard member2120.6M USD2026-08-05−26.0%
Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.Associated person2120.6M USD2026-08-05−26.0%
FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.Associated person1—10.0M USD2026-08-06−20.5%
Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLCAssociated person1—10.2M USD2026-08-06−20.5%
SanofiAssociated person1—5.1M USD2026-08-06−20.5%
venBio Global Strategic Fund IV, L.P.Associated person1—6.5M USD2026-08-06−20.5%

Purchases against sales

89%purchases
Purchases89%72.9M USD · 13 line(s) · 6 insider(s)
Sales11%9.0M USD · 88 line(s) · 2 insider(s)

Shares of the reported value of insider transactions in the 180-day window. Sales include disposals for tax, at option exercise or under a pre-set plan, which say little about an insider's view. The split describes what was disclosed; it is not a signal.

Why this score? · Model details

Priority = 100 × Σ(fixed weight × 0–1 rule-based input)

FactorWeightThis company inputPoint contribution
15-day buyer breadth (count)35%1.00035.0
Qualified-buy size25%0.97624.4
Role informativeness (inverted)20%0.70014.0
Recency10%0.2963.0
Buy/sell conviction10%0.8778.8

This is a heuristic ordering under the current rules, not a calibrated return forecast. It explains why candidates rank differently; the public-filing evidence and data limits are shown below.

BULL VS BEAR

Two readings of this buying

The same filings, read two ways. Each line is a fact stored for this company with the number behind it, and appears only when that number crosses a fixed threshold. Neither side is a forecast and no winner is declared.

Where the evidence comes from

Independent evidence does not object: the purchases themselves carry bull lines (several insiders together, more buyers than usual here, large purchases, purchase added much to the holding); short sellers were checked and none crosses a bear threshold. No data is held for: share price and trading, company results, company actions.

  • The insider purchases themselvesBullseveral insiders together, more buyers than usual here, large purchases, purchase added much to the holding5 checked, under the threshold · 1 missing
  • Share price and tradingno data held
  • Short sellers2 checked, under the threshold
  • Company results2 missing
  • Company actionsno data held

Bull case · the buying is informative

  • 6 insiders bought within 15 days (2026-08-05 to 2026-08-06). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.
  • No insider bought in the 180 days before this window; 6 have bought in it. The buying is new for this company, not a habit.
  • Insiders committed a net $64.0M of their own money in 180 days.
  • 6 of 8 purchase filings state the shares held before and after. In 2 of them the filer reported no shares of the company before the purchase. The largest addition to an existing holding took it from 75,349 to 6,154,213 shares (+781%). A holding here is one way of owning the shares: directly, or through one named trust or entity.

Bear case · discount it

Nothing held here argues against the buying. That is not the same as nothing existing: see the missing evidence below.

Evidence still missing

  • No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
  • The company's market value is not captured, so the purchases cannot be stated as a share of the business or of its trading volume.
  • No earnings, margin or cash-flow figures are captured for this company. The latest annual and interim reports are where to check whether the business is improving or deteriorating.
Checked and under the threshold: 7, 1 close to it
  • EitherThe latest purchase is 73 days old. Bull up to 14 days, bear from 90. close to the threshold
  • BearThe largest buyer accounts for 28% of the value bought. Counted for the bear side from 80%.
  • BearInsiders sold $9.0M in the same 180 days, 12% of the amount bought. Counted for the bear side from 25%.
  • BearNone of the 6 purchase filings ticks Form 4's 10b5-1 box.
  • BearOver the last 5 trading days to 2026-10-16, 45% of this stock's off-exchange volume was sold short; over the 47 days before, 46%. The market's median is 50%. This is trading volume, not a position: a market maker who sells short and covers the same day is counted, so about half of all volume is short on an ordinary day. It is shown for comparison and counts for neither side.
  • BearNo insider filing in the last 180 days opened a hedge on this stock.
  • BearFINRA short interest on 2026-09-30 equals 3.0 days of average trading volume and 3.6% of the 45,651,262 shares outstanding, up 98% from the previous report. Counted for the bear side from 10 days, or from 10% of the shares outstanding.

Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.

Signal history

85.1 / 100

Latest recorded score

↑ +0.6 ptssince the first recorded snapshot on 2026-10-09; 9 calendar days observed
Recorded snapshots
7
First snapshot
2026-10-09

There is not yet a 30-calendar-day comparison; earlier scores are not reconstructed. These are raw signal scores saved when each full scoring run completed. They describe changes in research ranking, not price performance or returns.

Why did it change?

Less than 30 days of comparable history is available, so factor movement is not yet decomposed.

Signal score history

Fixed 0–100 scale; dates are spaced by calendar time.

02550751002026-10-09 · 84.52026-10-12 · 85.42026-10-13 · 85.42026-10-14 · 85.32026-10-15 · 85.32026-10-16 · 85.22026-10-18 · 85.1Oct 09Oct 13Oct 14Oct 15Oct 18

Recent recorded points

  1. 84.5
  2. 85.4
  3. 85.3
  4. 85.3
  5. 85.1
View all recorded scores
Snapshot dateSignal score
2026-10-0984.5
2026-10-1285.4
2026-10-1385.4
2026-10-1485.3
2026-10-1585.3
2026-10-1685.2
2026-10-1885.1

Sector context

Healthcare

Buying breadth
4.1% (42 / 1,029 issuers)
Sector rank
#8 / 13

This is sector-level research context. It does not affect the Insider Signal or ranking.

View US sector research →

Insider profile outcomes

Historical performance following insider filings. The company role is translated below each name while preserving the original title.

Events are disclosure-level observations; related disclosures published on the same date may share a return path and may not be statistically independent. This research enrichment does not affect the insider score or ranking.

GOLDMAN SACHS GROUP INCOther | TenPercentOwner2 completed 20D event(s)
PeriodCompleted eventsPrice coverageHit rateMedian excess returnAverage excess returnWorst excess return
5D2Small sample33.3% (2/6)100.0% (2/2)+15.3%+15.3%+7.3%
20D2Small sample33.3% (2/6)50.0% (1/2)+3.0%+3.0%-14.5%
60D0No data0.0% (0/4)————
120D0No data0.0% (0/4)————
First purchase in 12M
4/6
Large purchase ≥ $100k
3/6
Cluster buying · 15D
6/6
Buying the dip · ≥20% below prior 52W high
Not classifiable
Routine / opportunistic
Not classifiable
GOLDMAN SACHS & CO. LLCOther | TenPercentOwner2 completed 20D event(s)
PeriodCompleted eventsPrice coverageHit rateMedian excess returnAverage excess returnWorst excess return
5D2Small sample40.0% (2/5)100.0% (2/2)+15.3%+15.3%+7.3%
20D2Small sample40.0% (2/5)50.0% (1/2)+3.0%+3.0%-14.5%
60D0No data0.0% (0/3)————
120D0No data0.0% (0/3)————
First purchase in 12M
3/5
Large purchase ≥ $100k
3/5
Cluster buying · 15D
5/5
Buying the dip · ≥20% below prior 52W high
Not classifiable
Routine / opportunistic
Not classifiable
Green JeremyDirector,TenPercentOwner | TenPercentOwner2 completed 20D event(s)
PeriodCompleted eventsPrice coverageHit rateMedian excess returnAverage excess returnWorst excess return
5D2Small sample50.0% (2/4)50.0% (1/2)+1.8%+1.8%-1.9%
20D2Small sample50.0% (2/4)50.0% (1/2)+11.4%+11.4%-4.3%
60D1Small sample33.3% (1/3)100.0% (1/1)+4.4%+4.4%+4.4%
120D1Small sample33.3% (1/3)100.0% (1/1)+93.7%+93.7%+93.7%
First purchase in 12M
1/1
Large purchase ≥ $100k
4/4
Cluster buying · 15D
4/4
Buying the dip · ≥20% below prior 52W high
1/1
Routine / opportunistic
Not classifiable

Signal outcomes

Calculated from immutable US ranking snapshots; excess return is stock return minus SPY return. Newly saved snapshots remain pending until each forward horizon matures. This never affects the US score.

HorizonStatusResult
5D1 completed-13.3% median
20DAwaiting maturity—
60DAwaiting maturity—
120DAwaiting maturity—

Market context

PRICE PERFORMANCE

1M
-28.1%
3M
—
6M
—
12M
—

VOLATILITY & LIQUIDITY

Volatility
81.1%
Beta
—
Avg daily volume
$7.3M

VALUATION

Market cap
—
P/E
—

FUNDAMENTALS

Profit margin
—
ROE
—
Industry
—

Prices to 11 Oct 2026: OpenBB/yfinance; volume from price cache (yfinance). It does not affect the insider score or rank.

Insiders' buying price vs the latest close

The latest close in the price history is more than a week old.

Buying size vs market trading

Complete price and volume history is not yet available.

Market-data coverage: 0 verified sessions · Latest session: — · Ratio status: Unavailable

Traded value is estimated as close × shares traded, in major currency units. Includes disclosed qualifying purchases; disclosures may lag. Contractual or planned acquisitions are not necessarily discretionary. Ratios describe relative trading size, not market participation or score contributions.

Regulatory filings

Unfold all 9 filings

Results and insider purchases

Results (8-K)Bought within 5 sessionsBought within 20 sessionsBuyers, 20 sessions before
2026-09-0216:17 ET · after the closeFirst session 2026-09-03NoneNone17

Results dates are the company's 8-K filings to the SEC under Item 2.02 (results of operations); one filed after the close counts from the next session. Purchases are open-market buys reported on Form 4 (code P), by trade date; a Form 4 can arrive two business days after the trade, so the latest days can still fill in. Facts only; this does not change the score or rank.

Ownership and trading-plan context

Direct / indirect ownershipUnavailable
10b5-1 filing evidenceUnavailable
Evidence retrievedUnavailable

These are accession-level filing fields. Unavailable means the evidence was not fetched or parsed; it is never inferred as “No” and does not adjust the US score.

Filing evidence

These are underlying national-feed records from the 365-day window ending on the saved ranking snapshot. The score uses only the latest 180 days; older qualifying equity purchases remain visible for audit but do not enter the current score. The original filer, role, transaction classification, instrument, price, volume, value and source fields are retained. The first three rows are shown; remaining records can be unfolded for audit. Other transaction types are retained but excluded from the score.

Excluded transactions & classification

8 qualifying purchase disclosure(s) · 13 transaction line(s)

Aug 6, 2026Open market purchase
WALSH COLIN · Director
Common Stock · 500000.0 shares × 17.0 USD · 8500000.0 USD
Open filing
Aug 6, 2026Open market purchase
Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · Other
Common Stock · 500000.0 shares × 17.0 USD · 8500000.0 USD
Open filing
Aug 6, 2026Open market purchase
WALSH COLIN · Director
Common Stock · 500000.0 shares × 17.0 USD · 8500000.0 USD
Open filing
Unfold all 10 remaining filing row(s)
Transaction datePublishedFilerRoleTransactionInstrumentPrice (local currency)Quote currencyVolumeReported value (local currency)Source
2026-08-062026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market purchaseCommon Stock17.0 USDUSD500000.08500000.0 USDOpen filing
2026-08-062026-08-10venBio Global Strategic Fund IV, L.P.TenPercentOwnerOpen market purchaseCommon Stock17.0 USDUSD382352.06499984.0 USDOpen filing
2026-08-062026-08-07Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLCTenPercentOwnerOpen market purchaseCommon Stock17.0 USDUSD200000.03400000.0 USDOpen filing
2026-08-062026-08-07Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLCTenPercentOwnerOpen market purchaseCommon Stock17.0 USDUSD400000.06800000.0 USDOpen filing
2026-08-062026-08-07SanofiTenPercentOwnerOpen market purchaseCommon Stock17.0 USDUSD300000.05100000.0 USDOpen filing
2026-08-062026-08-06FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.TenPercentOwnerOpen market purchaseCommon Stock17.0 USDUSD588235.09999995.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market purchaseCommon Stock21.0 USDUSD85000.01785000.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market purchaseCommon Stock21.0 USDUSD85000.01785000.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market purchaseCommon Stock21.0 USDUSD85000.01785000.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market purchaseCommon Stock21.0 USDUSD85000.01785000.0 USDOpen filing

Showing 13 of 13 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.

Other disclosed transactions · excluded from score

View 106 other transaction(s)

Aug 6, 2026Conversion of derivative security
WALSH COLIN · Director
Common Stock · 1957134.0 shares × 0.0 USD · 0.0 USD
Open filing
Aug 6, 2026Conversion of derivative security
WALSH COLIN · Director
Common Stock · 478498.0 shares × 0.0 USD · 0.0 USD
Open filing
Aug 6, 2026Conversion of derivative security
Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P. · Other
Common Stock · 1957134.0 shares × 0.0 USD · 0.0 USD
Open filing
Unfold all 97 remaining filing row(s)
Transaction datePublishedFilerRoleTransactionInstrumentPrice (local currency)Quote currencyVolumeReported value (local currency)Source
2026-08-062026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherConversion of derivative securityCommon Stock0.0 USDUSD478498.00.0 USDOpen filing
2026-08-062026-08-13WALSH COLINDirectorConversion of derivative securityCommon Stock0.0 USDUSD1957134.00.0 USDOpen filing
2026-08-062026-08-13WALSH COLINDirectorConversion of derivative securityCommon Stock0.0 USDUSD478498.00.0 USDOpen filing
2026-08-062026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherConversion of derivative securityCommon Stock0.0 USDUSD478498.00.0 USDOpen filing
2026-08-062026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherConversion of derivative securityCommon Stock0.0 USDUSD1957134.00.0 USDOpen filing
2026-08-062026-08-10Deep Track Biotechnology Master Fund, Ltd.; Deep Track Capital, LP; KROIN DAVIDTenPercentOwnerConversion of derivative securityCommon Stock—USD1957138.00.0 USDOpen filing
2026-08-062026-08-10venBio Global Strategic Fund IV, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD821998.00.0 USDOpen filing
2026-08-062026-08-10venBio Global Strategic Fund IV, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD2311870.00.0 USDOpen filing
2026-08-062026-08-10venBio Global Strategic Fund IV, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD665147.00.0 USDOpen filing
2026-08-062026-08-07Green Jeremy; Redmile Biopharma Investments III, L.P.; Redmile Group, LLCTenPercentOwnerConversion of derivative securityCommon Stock—USD782854.00.0 USDOpen filing
2026-08-062026-08-07SanofiTenPercentOwnerConversion of derivative securityCommon Stock—USD782855.00.0 USDOpen filing
2026-08-062026-08-06FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD961322.00.0 USDOpen filing
2026-08-062026-08-06FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD1189940.00.0 USDOpen filing
2026-08-062026-08-06FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD1590175.00.0 USDOpen filing
2026-08-062026-08-06FHMLS XI, L.L.C.; FHMLS XI, L.P.; Frazier Life Sciences XI, L.P.TenPercentOwnerConversion of derivative securityCommon Stock—USD1749192.00.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.1 USDUSD200.04420.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD988.021765.64 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.87 USDUSD447.09775.890000000001 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD1332.029343.960000000003 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.05 USDUSD200.04410.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.06 USDUSD1556.034325.36 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD3402.074912.04 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.55 USDUSD480.010344.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.11 USDUSD100.02211.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.97 USDUSD753.016543.41 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD672.014797.44 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD6970.0153549.1 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD400.08808.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.84 USDUSD1180.025771.2 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.05 USDUSD1040.022932.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock20.84 USDUSD300.06252.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.78 USDUSD443.09648.54 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.07 USDUSD700.015449.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock22.19 USDUSD1163.025806.97 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.99 USDUSD100.02199.0 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.61 USDUSD6763.0146148.43 USDOpen filing
2026-08-052026-08-28WALSH COLINDirectorOpen market saleCommon Stock21.04 USDUSD76418.01607834.72 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.97 USDUSD753.016543.41 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.02 USDUSD672.014797.44 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD6970.0153549.1 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.02 USDUSD400.08808.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.84 USDUSD1180.025771.2 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.05 USDUSD1040.022932.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock20.84 USDUSD300.06252.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.78 USDUSD443.09648.54 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.05 USDUSD200.04410.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.07 USDUSD700.015449.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.19 USDUSD1163.025806.97 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.99 USDUSD100.02199.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.61 USDUSD6763.0146148.43 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.04 USDUSD76418.01607834.72 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD988.021765.64 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.87 USDUSD447.09775.890000000001 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD1332.029343.960000000003 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.06 USDUSD1556.034325.36 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.02 USDUSD3402.074912.04 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.1 USDUSD200.04420.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.55 USDUSD480.010344.0 USDOpen filing
2026-08-052026-08-28Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.11 USDUSD100.02211.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.07 USDUSD700.015449.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.61 USDUSD6763.0146148.43 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.78 USDUSD443.09648.54 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock20.84 USDUSD300.06252.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.05 USDUSD1040.022932.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.84 USDUSD1180.025771.2 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD400.08808.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD6970.0153549.1 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD672.014797.44 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.97 USDUSD753.016543.41 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.11 USDUSD100.02211.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.55 USDUSD480.010344.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.1 USDUSD200.04420.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.02 USDUSD3402.074912.04 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.06 USDUSD1556.034325.36 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.05 USDUSD200.04410.0 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD1332.029343.960000000003 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.87 USDUSD447.09775.890000000001 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.03 USDUSD988.021765.64 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.04 USDUSD76418.01607834.72 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock22.19 USDUSD1163.025806.97 USDOpen filing
2026-08-052026-08-13WALSH COLINDirectorOpen market saleCommon Stock21.99 USDUSD100.02199.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD6970.0153549.1 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.02 USDUSD672.014797.44 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.97 USDUSD753.016543.41 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.11 USDUSD100.02211.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.55 USDUSD480.010344.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.1 USDUSD200.04420.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.02 USDUSD3402.074912.04 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.06 USDUSD1556.034325.36 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.05 USDUSD200.04410.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD1332.029343.960000000003 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.87 USDUSD447.09775.890000000001 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.03 USDUSD988.021765.64 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.04 USDUSD76418.01607834.72 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.61 USDUSD6763.0146148.43 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock21.99 USDUSD100.02199.0 USDOpen filing
2026-08-052026-08-13Broad Street Principal Investments, L.L.C.; GOLDMAN SACHS & CO. LLC; GOLDMAN SACHS ASSET MANAGEMENT, L.P.; GOLDMAN SACHS GROUP INC; WSLS EMP OFFSHORE INVESTMENTS, L.P.; WSLS EMP ONSHORE INVESTMENTS, L.P.; WSLS OFFSHORE INVESTMENTS, SLP; West Street Life Sciences I, L.P.OtherOpen market saleCommon Stock22.19 USDUSD1163.025806.97 USDOpen filing

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Snapshot & identity

Snapshot date
2026-10-18
Ticker
ATTO
ISIN
—
Sector
Healthcare
Industry
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How to read Form 4 transaction codes

CodeInterpretationScreen treatment
POpen-market / private purchaseBuy evidence when the security is qualifying equity
SSaleSell evidence when the security is qualifying equity
AGrant / awardContext only
FTax-related withholdingContext only
MOption exerciseContext only
GGiftContext only
J / LOther / non-directionalContext only

P/S rows for options, warrants, compensation units and debt remain visible for audit but are excluded from equity scores and quotes.