Data as of 6 Nov 2026

COMPANY RESEARCH

STANDARD BIOTOOLS INC.

LAB · United States · Healthcare

Filing summary

Latest qualifying equity purchase · trade date 2026-11-05 · filer Carey Thomas D. · published 2026-11-05

Verify source filing ↗ · Held 365-day filing window; a purchase code alone does not establish discretion.

Insider Signal

Snapshot: 06 Nov 2026 · 180-day research window

Data quality under review

Insider Signal: 51.8 / 100
Reported buyers: 1
Net purchases: 46.9k USD
Latest disclosure: 2026-11-05

What stands out

Carey Thomas D. accounts for 100% of comparable reported purchase value; buyer breadth and value are different measures.
The share price fell 35.8% over 180 days; inspect disclosure dates before interpreting the purchases.

Price vs insider buying

LAB · USD

● Purchase　× Sale　◇ Public disclosure　▥ 15-day cluster ·

Circles and crosses mark trade dates; diamonds below the axis mark later public disclosures. The trade became public on its disclosure date. Prices are nearest-session closes, not insider execution prices. Marker sizes are not compared when values or currencies differ.

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

The two kinds of evidence disagree: the purchases themselves carry bull lines (bought in the last two weeks), while share price and trading argue against (price down over six months). No data is held for: company actions.

The insider purchases themselvesBullbought in the last two weeks Bearone buyer only4 checked, under the threshold · 3 missing
Share price and tradingBearprice down over six months1 checked, under the threshold
Short sellers2 checked, under the threshold
Company results1 checked, under the threshold · 1 missing
Company actionsno data held

Bull case · the buying is informative

The latest purchase is 1 day old (2026-11-05). The buying is current, not left over from an earlier quarter.

Bear case · discount it

Only one insider bought. A single purchase can reflect that person's own finances rather than a view on the company.
Share price and tradingThe share price is down 38% over six months (three months −19%, one month −5.1%) and stands 63% below its 52-week high. Insiders have bought into a fall the market has not reversed.

Evidence still missing

No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
Only one reading of profitability is held (profit margin 158%). Whether earnings and cash flow are rising or falling needs the last two reports side by side.
The 10b5-1 box of these Form 4 filings has not been read, so whether the purchases followed a pre-arranged plan is not known.
Form 4 states the shares held after each trade. This site reads that from the SEC's quarterly data, which is published after a quarter ends, so it does not have it yet for these filings. Whether a purchase added 1% to a personal stake or doubled it is in the filing, not on this page.

Checked and under the threshold: 8

Either1 insider bought in the last 180 days and 1 in the 180 days before. Bull when the number at least doubles and rises by two; bear when at least two bought before and no more buy now.
EitherNet purchases equal 0.02% of the company's market value. Bull from 0.10%, bear below 0.01%.
BearNo insider sale is recorded in the same 180 days.
BearOver three months the share price changed −19% and the median of 224 Healthcare companies changed −19%: behind by 1 points. Counted for the bear side from 20 points behind.
BearOver the last 5 trading days to 2026-11-06, 24% of this stock's off-exchange volume was sold short; over the 60 days before, 44%. The market's median is 47%. 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 2026-10-15 equals 2.5 days of average trading volume and 0.62% of the 392,578,808 shares outstanding, down 3.0% from the previous report. Counted for the bear side from 10 days, or from 10% of the shares outstanding.
BearProfit margin on the latest captured figures is 158%. Counted for the bear side when negative.

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

Who is trading?

Named filings in 180 days. Purchase values are summed only when complete and in one currency.

Role Activity

Insider

Transaction activity

Purchase value

Latest trade

Details

Carey Thomas D.Board member

1 buy · 0 sell

46.9k USD

2026-11-05

View transactions · 2

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-11-05	2026-11-05	Open market purchase	75000	0.6253	USD	46897.5	Source ↗
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

Casdin EliBoard member

0 buy · 0 sell

No purchases

2026-06-18

View transactions · 1

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

Cox TroyBoard member

0 buy · 0 sell

No purchases

2026-06-18

View transactions · 1

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

ELOI FENEL MBoard member

0 buy · 0 sell

No purchases

2026-06-18

View transactions · 1

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

Egholm MichaelCEO / chair

0 buy · 0 sell

No purchases

2026-08-20

View transactions · 3

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-08-20	2026-08-24	Shares withheld for tax or exercise price	97627.0	0.67	USD	65410.090000000004	Source ↗
2026-08-03	2026-08-04	Shares withheld for tax or exercise price	362625.0	0.87	USD	315483.75	Source ↗
2026-05-20	2026-05-22	Shares withheld for tax or exercise price	97626.0	1.0	USD	97626.0	Source ↗

HIBBS KATHY LBoard member

0 buy · 0 sell

No purchases

2026-06-18

View transactions · 1

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

Kim Hanjoon AlexCFO

0 buy · 0 sell

No purchases

2026-08-20

View transactions · 3

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-08-20	2026-08-24	Shares withheld for tax or exercise price	28195.0	0.67	USD	18890.65	Source ↗
2026-07-23	2026-07-27	Shares withheld for tax or exercise price	202476.0	0.9	USD	182228.4	Source ↗
2026-05-20	2026-05-22	Shares withheld for tax or exercise price	18871.0	1.0	USD	18871.0	Source ↗

Mackay SeanExecutive

0 buy · 0 sell

No purchases

2026-08-20

View transactions · 3

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-08-20	2026-08-24	Shares withheld for tax or exercise price	25729.0	0.67	USD	17238.43	Source ↗
2026-06-20	2026-06-23	Grant or award	500000.0	0.0	USD	0.0	Source ↗
2026-05-20	2026-05-22	Shares withheld for tax or exercise price	25729.0	1.0	USD	25729.0	Source ↗

Witney FrankBoard member

0 buy · 0 sell

No purchases

2026-06-18

View transactions · 1

Trade date	Disclosure	Type	Shares	Price	Currency	Reported value	Source
2026-06-18	2026-06-23	Grant or award	99116.0	0.0	USD	0.0	Source ↗

INSIDER SIGNAL

Score breakdown：51.8 / 100

1 insiders · 1 purchase events · $47k net purchases

US #544 · United States #544

WHY THIS SIGNAL?

Score anatomy

Each bar is that part's points in the score; the five parts add up to the score.

Number of buyers+7.0 / 35

How many different insiders bought within 15 days

Amount bought+5.0 / 25

The value bought, net of any insider sales

Buyers' roles+20.0 / 20

Lower in the company scores higher: in the backtest, purchases by the most senior insiders did worse

How recent+9.8 / 10

How long ago the latest purchase took place

Buying against selling+10.0 / 10

Lower when insiders also sold

What is holding the score back?

⚠ Few buyers · fewer than 4 different insiders
⚠ The amount bought is small on the score's scale
✓ Buyers' roles add a lot · the buyers are below the top of the company
✓ Recent buying · latest purchase 2026-11-05

Buyers' roles follow the US order of roles: CEOs, chairs and 10% owners score lowest.

BUYING PROFILE

1 events · 1 insiders · 180d

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

Percentages are mutually exclusive and sum to 100%.

Buying concentration

100%

Largest buyer：Carey Thomas D. · 47k USD
Purchases counted, before sales：47k USD

The amount at the top of the page is purchases minus sales; this one counts purchases only, in the filing currency, so the two can differ. The score counts how many people bought; this shows separately who bought the most.

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)

Filer	Price per unit	Trade date
Carey Thomas D.	0.6253 USD	Nov 5, 2026

Model details

Cluster breakdown (does not change the score)

15-day buyer breadth (count): 1 distinct reported filers
Peak time window: 2026-11-05 to 2026-11-05
Current breadth input: 0.200 (capped at 4+ buyers)
Buyer independence: Not yet measured; related-party fields are not cross-market comparable

What the filings show

🟢 Latest purchase counted
Carey Thomas D. · 47k USD · Price 0.6253 USD · Nov 5, 2026
🔴 15 other line(s) are not counted, as they are not purchases the insider chose to make; 7 have a price of zero

Filing and data quality

These checks are auditable context; they do not change the rank or score.

Identity match: REVIEW
Ticker / ISIN: Ticker or ISIN missing
Filing source links: 44 / 44
Median disclosure lag: 2 days
Latest disclosure age: 1 days at snapshot
Corrections / revisions: 0
Score-factor detail: Saved

Insider timeline

One insider bought, once (5 Nov). The share closed at 0.62 that day and at 0.64 most recently (+2.6%).

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.

Blue line: this share's price, −35.8% over these six months

The closing price of each day, from 0.99 on 2026-05-11 to 0.64 on 2026-11-06. 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, −9.6%

Taken from the 1644 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 −35.8%, the typical one −9.6%, 26.1 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.

This company: insiders buying per month, last 12 months

1Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

1Nov

Darker bars are inside the 180-day window above.

Who traded

Insider	Role	Purchases	Sales	Bought	First purchase	Share price since
Carey Thomas D.	Board member	1	—	46.9k USD	2026-11-05	+2.6%

Insiders' buying price vs the latest close

Insiders paid 1.28 USD a share on average (16 purchase lines, 2 buyers, 2025-11-07 – 2026-11-05). The close on 2026-11-06 was 50.3% below that price.

The latest purchase (2026-11-05) was at 0.6253 USD; the close was 1.7% above that price.

Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored.

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.

Sector context

Healthcare

Buying breadth: 4.7% (48 / 1,020 issuers)
Sector rank: #7 / 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.

Excess return = stock return − S&P 500 ETF (SPY adjusted close) return over the same period.
Hit rate = completed events with positive excess return ÷ total completed events.
Price coverage = valid point-in-time prices ÷ events mature enough for that period.
Returns start on the first shared trading session on or after publication.
Small-sample rule: n<5 is shown for transparency and is not scored.

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.

Casdin Capital, LLCDirector,TenPercentOwner2 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	2Small sample	16.7% (2/12)	100.0% (2/2)	+13.3%	+13.3%	+10.3%
20D	2Small sample	16.7% (2/12)	100.0% (2/2)	+28.3%	+28.3%	+25.6%
60D	2Small sample	16.7% (2/12)	100.0% (2/2)	+66.1%	+66.1%	+63.6%
120D	0No data	0.0% (0/10)	—	—	—	—

First purchase in 12M

1/11

Large purchase ≥ $100k

12/12

Cluster buying · 15D

12/12

Buying the dip · ≥20% below prior 52W high

2/2

Routine / opportunistic

Not classifiable

Casdin EliDirector,TenPercentOwner2 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	2Small sample	16.7% (2/12)	100.0% (2/2)	+13.3%	+13.3%	+10.3%
20D	2Small sample	16.7% (2/12)	100.0% (2/2)	+28.3%	+28.3%	+25.6%
60D	2Small sample	16.7% (2/12)	100.0% (2/2)	+66.1%	+66.1%	+63.6%
120D	0No data	0.0% (0/10)	—	—	—	—

First purchase in 12M

1/11

Large purchase ≥ $100k

12/12

Cluster buying · 15D

12/12

Buying the dip · ≥20% below prior 52W high

2/2

Routine / opportunistic

Not classifiable

Casdin Partners GP, LLCDirector,TenPercentOwner2 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	2Small sample	16.7% (2/12)	100.0% (2/2)	+13.3%	+13.3%	+10.3%
20D	2Small sample	16.7% (2/12)	100.0% (2/2)	+28.3%	+28.3%	+25.6%
60D	2Small sample	16.7% (2/12)	100.0% (2/2)	+66.1%	+66.1%	+63.6%
120D	0No data	0.0% (0/10)	—	—	—	—

First purchase in 12M

1/11

Large purchase ≥ $100k

12/12

Cluster buying · 15D

12/12

Buying the dip · ≥20% below prior 52W high

2/2

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.

Horizon	Status	Result
5D	Awaiting maturity	—
20D	Awaiting maturity	—
60D	Awaiting maturity	—
120D	Awaiting maturity	—

Market context

PRICE PERFORMANCE

-5.1%

-19.5%

-37.6%

12M

-44.2%

VOLATILITY & LIQUIDITY

Volatility: 73.2%
Beta: —
Avg daily volume: $764,585.2
20-session drawdown: -9.1%
60-session drawdown: -22.1%
Latest volume / prior median: 1.6×

VALUATION

Market cap: $251.1M
Market cap (EUR ref.): $224.9M
P/E: —

FUNDAMENTALS

Revenue: $85.3M
Net income: $-74.9M
Operating profit: $-110.2M
Equity: $424.3M
Cash: $123.3M
Debt: —
Operating cash flow: $-74.3M
Free cash flow: $-82.6M
Profit margin: 157.6%
ROE: -7.8%
Industry: Medical Devices

Prices to 07 Nov 2026: OpenBB/yfinance. From OpenBB/yfinance, captured 07 Nov 2026: Market cap, Revenue, Net income, Equity, Operating profit, Cash, Operating cash flow, Free cash flow, Profit margin, ROE, Industry. ECB EUR reference rate dated 2026-11-06; it is not a trade-date conversion. It does not affect the insider score or rank.

Dividends

No cash dividend in the last five years.

Yahoo Finance: cash dividends by ex-dividend date, the latest close, the payout ratio (dividends ÷ 12-month earnings per share) and announced dates; special dividends included, stock dividends and splits not. Not part of any score.

Insiders and institutions

Insiders, ranking window: $46.9k net bought · buyers: 1 · last 2026-11-05

Holders of more than 5% (SEC Schedules 13D and 13G)

Holder	Of the class	Schedule	As of	Change
Eli Casdin	23.90%	13D	2026-06-06	−0.30 pp
VIKING GLOBAL INVESTORS LP	15.00%	13D	2026-06-06	+0.00 pp
MAK CAPITAL ONE LLC	7.30%	13G	2026-06-30	—
MAK Capital Fund LP	6.70%	13G	2026-03-31	+1.51 pp
LONG FOCUS CAPITAL MANAGEMENT, LLC	6.00%	13G	2026-06-30	—

Filings in the last 12 months

2 new · 2 raised · 1 cut · 1 fell to 5% or less

As of	Holder	Schedule	Stake	What happened
2026-06-30	MAK CAPITAL ONE LLC	13G	— → 7.30%	holding filed in the new format
2026-06-30	LONG FOCUS CAPITAL MANAGEMENT, LLC	13G	— → 6.00%	new holding
2026-06-30	BlackRock, Inc.	13G	— → 2.00%	5% or less
2026-06-06	Eli Casdin	13D	24.20% → 23.90%	cut
2026-03-31	VIKING GLOBAL INVESTORS LP	13G	— → 15.00%	holding filed in the new format
2026-03-31	MAK Capital Fund LP	13G	5.19% → 6.70%	raised
2025-12-31	MAK Capital Fund LP	13G	— → 5.19%	new holding
2025-11-25	Eli Casdin	13D	21.60% → 24.20%	raised

Source: SEC, Schedules 13D and 13G, filed in a structured format since 18 December 2024; earlier filings are not read, so a holder that has not filed since then is not shown. 13D: the holder may seek to influence the company (activists, founders, strategic holders); it must amend within two business days of a change of 1% or more. 13G: the holder states it holds passively; it amends within 45 days after the quarter in which its holding changed materially, so a figure can be months old. The percentage is the filer's own, of the class of shares it names. Context only; not part of the score.

Institutional managers (SEC Form 13F)

Held on 2026-06-30: $242.4M143 managers · 296.1M shares · 75.4% of the shares outstanding (SEC cover page, 2026-08-03)
Shares held, change on the quarter: −0.4%since 2026-03-31
Change on the year: +5.4%since 2025-06-30
Managers: 43 new · 46 added · 36 cut · 55 sold out

The shares 13F managers held changed little on the quarter.

Source: SEC Form 13F, filed within 45 days of each quarter end by managers with $100 million or more in US-listed shares; long positions only (no short positions, options left out). Late filers of the quarter are not counted. A parent and a subsidiary can both report the same shares, so the total can count some twice. The quarter end (2026-06-30) and the insiders' purchases (last 2026-11-05) are different periods. Context only; not part of the score.

The company's own shares

Fiscal year to 2025-12-31: $0

Source: the company's 10-Q and 10-K (XBRL): cash paid for repurchases of its common stock, and what the board's authorisation still allows. A company that does not tag the figure is not shown here. Context only; not part of the score.

Regulatory filings

Insider filing announcement · published 2026-11-05 · trade date 2026-11-05
Insider filing announcement · published 2026-08-24 · trade date 2026-08-20
Insider filing announcement · published 2026-08-24 · trade date 2026-08-20

Unfold all 32 filings

Insider filing announcement · published 2026-11-05 · trade date 2026-11-05
Insider filing announcement · published 2026-08-24 · trade date 2026-08-20
Insider filing announcement · published 2026-08-24 · trade date 2026-08-20
Insider filing announcement · published 2026-08-24 · trade date 2026-08-20
Insider filing announcement · published 2026-08-04 · trade date 2026-08-03
Insider filing announcement · published 2026-07-27 · trade date 2026-07-23
Insider filing announcement · published 2026-06-23 · trade date 2026-06-20
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-06-23 · trade date 2026-06-18
Insider filing announcement · published 2026-05-22 · trade date 2026-05-20
Insider filing announcement · published 2026-05-22 · trade date 2026-05-20
Insider filing announcement · published 2026-05-22 · trade date 2026-05-20
Insider filing announcement · published 2026-04-08 · trade date 2026-04-06
Insider filing announcement · published 2026-04-08 · trade date 2026-04-06
Insider filing announcement · published 2026-03-02 · trade date 2026-02-26
Insider filing announcement · published 2026-03-02 · trade date 2026-02-26
Insider filing announcement · published 2026-03-02 · trade date 2026-02-26
Insider filing announcement · published 2026-02-24 · trade date 2026-02-23
Insider filing announcement · published 2026-02-24 · trade date 2026-02-23
Insider filing announcement · published 2026-02-24 · trade date 2026-02-23
Insider filing announcement · published 2025-12-04 · trade date 2025-12-04
Insider filing announcement · published 2025-11-26 · trade date 2025-11-25
Insider filing announcement · published 2025-11-24 · trade date 2025-11-20
Insider filing announcement · published 2025-11-24 · trade date 2025-11-20
Insider filing announcement · published 2025-11-24 · trade date 2025-11-20
Insider filing announcement · published 2025-11-20 · trade date 2025-11-20
Insider filing announcement · published 2025-11-17 · trade date 2025-11-17
Insider filing announcement · published 2025-11-12 · trade date 2025-11-12

Results and insider purchases

Results (8-K)	Bought within 5 sessions	Bought within 20 sessions
2026-08-0516:10 ET · after the closeFirst session 2026-08-06	None	None
2026-05-0516:10 ET · after the closeFirst session 2026-05-06	None	None
2026-02-2416:15 ET · after the closeFirst session 2026-02-25	None	None
2026-01-3009:18 ET · before the open	None	None

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 ownership	Direct
10b5-1 filing evidence	Not declared in filing field
Evidence retrieved	2026-11-06T23:58:05+00:00

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

6 qualifying purchase disclosure(s) · 16 transaction line(s)

Trade Dec 4, 2025Open market purchase

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P. · Director; Director,TenPercentOwner

Published Dec 4, 2025 · Common Stock, $0.001 par value per share · 150000.0 shares × 1.45 USD · 217500.0 USD

Open filing

Trade Dec 3, 2025Open market purchase

Published Dec 4, 2025 · Common Stock, $0.001 par value per share · 75000.0 shares × 1.44 USD · 108000.0 USD

Open filing

Trade Dec 2, 2025Open market purchase

Published Dec 4, 2025 · Common Stock, $0.001 par value per share · 125000.0 shares × 1.42 USD · 177500.0 USD

Open filing

Unfold all 13 remaining filing row(s)

Transaction date	Published	Filer	Role	Transaction	Instrument	Price (local currency)	Quote currency	Volume	Reported value (local currency)	Source
2025-11-25	2025-11-26	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.3 USD	USD	7550000.0	9815000.0 USD	Open filing
2025-11-24	2025-11-26	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.43 USD	USD	150000.0	214500.0 USD	Open filing
2025-11-20	2025-11-20	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.3 USD	USD	450000.0	585000.0 USD	Open filing
2025-11-19	2025-11-20	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.28 USD	USD	350000.0	448000.0 USD	Open filing
2025-11-18	2025-11-20	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.23 USD	USD	275000.0	338250.0 USD	Open filing
2025-11-17	2025-11-17	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.22 USD	USD	225000.0	274500.0 USD	Open filing
2025-11-14	2025-11-17	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.24 USD	USD	250000.0	310000.0 USD	Open filing
2025-11-13	2025-11-17	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.2 USD	USD	450000.0	540000.0 USD	Open filing
2025-11-12	2025-11-12	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.19 USD	USD	375000.0	446250.0 USD	Open filing
2025-11-11	2025-11-12	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.2 USD	USD	300000.0	360000.0 USD	Open filing
2025-11-10	2025-11-12	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.17 USD	USD	275000.0	321750.0 USD	Open filing
2025-11-07	2025-11-12	CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC; Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P.; Casdin Private Growth Equity Fund II GP, LLC; Casdin Private Growth Equity Fund II, L.P.; Casdin Private Growth Equity Fund, L.P.	Director; Director,TenPercentOwner	Open market purchase	Common Stock, $0.001 par value per share	1.12 USD	USD	225000.0	252000.00000000003 USD	Open filing
2026-11-05	2026-11-05	Carey Thomas D.	Director	Open market purchase	Common Stock	0.6253 USD	USD	75000	46897.5 USD	Open filing

Showing 16 of 16 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 28 other transaction(s)

Trade Nov 20, 2025Shares withheld for tax or exercise price

Egholm Michael · President & CEO

Published Nov 24, 2025 · Common Stock · 63529.0 shares × 1.28 USD · 81317.12 USD

Open filing

Trade Nov 20, 2025Shares withheld for tax or exercise price

Kim Hanjoon Alex · Chief Financial Officer

Published Nov 24, 2025 · Common Stock · 12739.0 shares × 1.28 USD · 16305.92 USD

Open filing

Trade Nov 20, 2025Shares withheld for tax or exercise price

Mackay Sean · SVP & Chief Business Officer

Published Nov 24, 2025 · Common Stock · 19661.0 shares × 1.28 USD · 25166.08 USD

Open filing

Unfold all 25 remaining filing row(s)

Transaction date	Published	Filer	Role	Transaction	Instrument	Price (local currency)	Quote currency	Volume	Reported value (local currency)	Source
2026-02-26	2026-03-02	Casdin Eli	Director,TenPercentOwner	Grant or award	Common Stock	1.17 USD	USD	52991.0	61999.469999999994 USD	Open filing
2026-02-26	2026-03-02	Cox Troy	Director	Grant or award	Common Stock	1.17 USD	USD	57264.0	66998.87999999999 USD	Open filing
2026-02-26	2026-03-02	Carey Thomas D.	Director	Grant or award	Common Stock	1.17 USD	USD	51282.0	59999.939999999995 USD	Open filing
2026-02-23	2026-02-24	Egholm Michael	President & CEO	Shares withheld for tax or exercise price	Common Stock	1.15 USD	USD	66127.0	76046.04999999999 USD	Open filing
2026-02-23	2026-02-24	Mackay Sean	SVP & Chief Business Officer	Shares withheld for tax or exercise price	Common Stock	1.15 USD	USD	19661.0	22610.149999999998 USD	Open filing
2026-02-23	2026-02-24	Kim Hanjoon Alex	Chief Financial Officer	Shares withheld for tax or exercise price	Common Stock	1.15 USD	USD	12740.0	14650.999999999998 USD	Open filing
2026-06-20	2026-06-23	Mackay Sean	SVP & Chief Business Officer	Grant or award	Common Stock	0.0 USD	USD	500000.0	0.0 USD	Open filing
2026-06-18	2026-06-23	Carey Thomas D.	Director	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-06-18	2026-06-23	Witney Frank	Director	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-06-18	2026-06-23	Casdin Eli	Director,TenPercentOwner	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-06-18	2026-06-23	Cox Troy	Director	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-06-18	2026-06-23	ELOI FENEL M	Director	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-06-18	2026-06-23	HIBBS KATHY L	Director	Grant or award	Common Stock	0.0 USD	USD	99116.0	0.0 USD	Open filing
2026-05-20	2026-05-22	Kim Hanjoon Alex	Chief Financial Officer	Shares withheld for tax or exercise price	Common Stock	1.0 USD	USD	18871.0	18871.0 USD	Open filing
2026-05-20	2026-05-22	Mackay Sean	SVP & Chief Business Officer	Shares withheld for tax or exercise price	Common Stock	1.0 USD	USD	25729.0	25729.0 USD	Open filing
2026-05-20	2026-05-22	Egholm Michael	President & CEO	Shares withheld for tax or exercise price	Common Stock	1.0 USD	USD	97626.0	97626.0 USD	Open filing
2026-04-06	2026-04-08	Egholm Michael	President & CEO	Exercise of derivative security	Common Stock	0.0 USD	USD	196513.0	0.0 USD	Open filing
2026-04-06	2026-04-08	Egholm Michael	President & CEO	Shares withheld for tax or exercise price	Common Stock	0.91 USD	USD	95014.0	86462.74 USD	Open filing
2026-04-06	2026-04-08	Kim Hanjoon Alex	Chief Financial Officer	Shares withheld for tax or exercise price	Common Stock	0.91 USD	USD	21301.0	19383.91 USD	Open filing
2026-04-06	2026-04-08	Kim Hanjoon Alex	Chief Financial Officer	Exercise of derivative security	Common Stock	0.0 USD	USD	70183.0	0.0 USD	Open filing
2026-08-20	2026-08-24	Mackay Sean	SVP & Chief Business Officer	Shares withheld for tax or exercise price	Common Stock	0.67 USD	USD	25729.0	17238.43 USD	Open filing
2026-08-20	2026-08-24	Kim Hanjoon Alex	Chief Financial Officer	Shares withheld for tax or exercise price	Common Stock	0.67 USD	USD	28195.0	18890.65 USD	Open filing
2026-08-20	2026-08-24	Egholm Michael	President & CEO	Shares withheld for tax or exercise price	Common Stock	0.67 USD	USD	97627.0	65410.090000000004 USD	Open filing
2026-08-03	2026-08-04	Egholm Michael	President & CEO	Shares withheld for tax or exercise price	Common Stock	0.87 USD	USD	362625.0	315483.75 USD	Open filing
2026-07-23	2026-07-27	Kim Hanjoon Alex	Chief Financial Officer	Shares withheld for tax or exercise price	Common Stock	0.9 USD	USD	202476.0	182228.4 USD	Open filing

Showing 28 of 28 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.

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Model & Sources

Signal history

51.8 / 100

Latest recorded score

→ +0.0 ptssince the first recorded snapshot on 2026-11-06; 0 calendar days observed

Recorded snapshots: 1
First snapshot: 2026-11-06

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.

Recent recorded points

Nov 6, 202651.8

View all recorded scores

Snapshot date	Signal score
2026-11-06	51.8

Why this score? · Model details

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

Factor	Weight	This company input	Point contribution
15-day buyer breadth (count)	35%	0.200	7.0
Qualified-buy size	25%	0.198	5.0
Role informativeness (inverted)	20%	1.000	20.0
Recency	10%	0.983	9.8
Buy/sell conviction	10%	1.000	10.0

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.

Snapshot & identity

Snapshot date: 2026-11-06
Ticker: LAB
ISIN: —
Sector: Healthcare
Industry: —

Company logos by Parqet

How to read Form 4 transaction codes

Code	Interpretation	Screen treatment
P	Open-market / private purchase	Buy evidence when the security is qualifying equity
S	Sale	Sell evidence when the security is qualifying equity
A	Grant / award	Context only
F	Tax-related withholding	Context only
M	Option exercise	Context only
G	Gift	Context only
J / L	Other / non-directional	Context only

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