Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Outset Medical, Inc.

OM · Nasdaq · CIK 0001484612 · Healthcare · Medical Devices

INSIDER SIGNAL

53.0 / 100

1 buyers · 2 purchase transaction lines · $870.3K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeModerate
RoleModerate
RecencyModerate
ConvictionStrong
Score anatomy

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

Cluster+7.0 / 35
Purchase size+16.2 / 25
Role+14.0 / 20
Recency+7.7 / 10
Conviction+8.1 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Role scores low · most senior buyer: TenPercentOwner (CEO, chair and 10% owners score lowest)
  • ✓ Recent activity · latest purchase 2026-10-02

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Leonard Braden MichaelTenPercentOwner
○○○●●
Brottem John L.General Counsel
▼○▼
Gaeta ReneeChief Financial Officer
▼○▼
Trigg LeslieChair and CEO
▼○▼
HACKETT PATRICK TDirector
○
OBOYLE KEVIN CDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Leonard Braden Michael · $870.3K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-10-01–2026-10-02

Roles in the peak window: TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

53.0 / 100

Latest recorded score

↓ -0.3 ptsversus the previous recorded snapshot
  1. 53.8
  2. 53.7
  3. 53.5
  4. 53.3
  5. 53.0

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

2Purchases
23Sales
14Other Form 4 lines
34SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING7 sale line(s) · context only
OTHER12 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+23.9%
3M
-7.1%
6M
-3.6%
12M
-74.4%

Volatility & liquidity

Volatility
105.0%
Beta
—
Avg daily value
USD 640,258

Valuation

Market cap
USD 76.1M
P/E
—

Fundamentals

Profit margin
-68.3%
ROE
-64.3%
Industry
Medical Devices

Market data

Price data up to: 2026-10-09 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-04 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
792,696
Previous report
889,575
Avg daily volume
133,657
Days to cover
5.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Leonard Braden MichaelPurchase (P)Common Stock16,575USD 3.88USD 64,241SEC filing ↗
2026-10-01Leonard Braden MichaelPurchase (P)Common Stock228,334USD 3.53USD 806,019SEC filing ↗
2022-11-22Hinrichs James F.Purchase (P)Common Stock7,500USD 17.84USD 133,800SEC filing ↗
2021-08-11Hinrichs James F.Purchase (P)Common Stock10,000USD 36.66USD 366,600SEC filing ↗
2021-08-10Ahmed NabeelPurchase (P)Common Stock1,000USD 37.13USD 37,134SEC filing ↗
2020-09-17Vazquez MartinPurchase (P)Common Stock1,000USD 27.00USD 27,000SEC filing ↗
2020-09-17Hinrichs James F.Purchase (P)Common Stock20,000USD 27.00USD 540,000SEC filing ↗
2020-09-17Brottem John L.Purchase (P)Common Stock2,500USD 27.00USD 67,500SEC filing ↗

Form 4 evidence

39 transaction lines in the latest 365-day window; 613 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Leonard Braden MichaelPurchase (P)Common Stock16,575USD 3.88USD 64,241SEC filing ↗
2026-10-01Leonard Braden MichaelPurchase (P)Common Stock228,334USD 3.53USD 806,019SEC filing ↗
2026-08-17Trigg LeslieSale (S)Common Stock3,437USD 4.39USD 15,088SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Leonard Braden MichaelPurchase (P)Common Stock16,575USD 3.88USD 64,241SEC filing ↗
2026-10-01Leonard Braden MichaelPurchase (P)Common Stock228,334USD 3.53USD 806,019SEC filing ↗
2026-08-17Trigg LeslieSale (S)Common Stock3,437USD 4.39USD 15,088SEC filing ↗
2026-08-17Gaeta ReneeSale (S)Common Stock4,543USD 4.39USD 19,944SEC filing ↗
2026-08-17Brottem John L.Sale (S)Common Stock2,632USD 4.39USD 11,554SEC filing ↗
2026-06-26Trigg LeslieAward / grant (A)Common Stock99,160USD 0.00USD 0SEC filing ↗
2026-06-26Gaeta ReneeAward / grant (A)Common Stock71,630USD 0.00USD 0SEC filing ↗
2026-06-26Brottem John L.Award / grant (A)Common Stock59,830USD 0.00USD 0SEC filing ↗
2026-06-04Prange KarenAward / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-04OBOYLE KEVIN CAward / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-04LANG BRENT D.Award / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-04HACKETT PATRICK TAward / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-04GROSSMAN D KEITHAward / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-04Drexler KarenAward / grant (A)Common Stock10,667USD 0.00USD 0SEC filing ↗
2026-06-03Gaeta ReneeSale (S)Common Stock17,672USD 4.94USD 87,300SEC filing ↗
2026-05-15Trigg LeslieSale (S)Common Stock3,445USD 3.70USD 12,746SEC filing ↗
2026-05-15Nash MarcSale (S)Common Stock1,582USD 3.70USD 5,853SEC filing ↗
2026-05-15Brottem John L.Sale (S)Common Stock2,638USD 3.70USD 9,761SEC filing ↗
2026-05-15Leonard Braden MichaelX (X)Common Stock323,000USD 5.00USD 1,615,000SEC filing ↗
2026-05-11Leonard Braden MichaelX (X)Common Stock96,900USD 5.00USD 484,500SEC filing ↗
2026-05-08Leonard Braden MichaelX (X)Common Stock197,600USD 5.00USD 988,000SEC filing ↗
2026-04-06Elliott Derick A.Award / grant (A)Common Stock96,000USD 0.00USD 0SEC filing ↗
2026-02-17Trigg LeslieSale (S)Common Stock3,361USD 3.35USD 11,259SEC filing ↗
2026-02-17Nash MarcSale (S)Common Stock1,817USD 3.35USD 6,087SEC filing ↗
2026-02-17Brottem John L.Sale (S)Common Stock2,842USD 3.35USD 9,521SEC filing ↗
2026-01-21Trigg LeslieSale (S)Common Stock2,120USD 5.05USD 10,706SEC filing ↗
2026-01-21Nash MarcSale (S)Common Stock980USD 4.98USD 4,880SEC filing ↗
2026-01-21Brottem John L.Sale (S)Common Stock1,180USD 5.01USD 5,912SEC filing ↗
2026-01-20Trigg LeslieSale (S)Common Stock11,794USD 5.12USD 60,385SEC filing ↗
2026-01-20Nash MarcSale (S)Common Stock5,375USD 5.12USD 27,520SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerOM
CIK0001484612
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3845 Electromedical & Electrotherapeutic Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history613 transaction lines from 2020-08-17 to 2026-10-02
9 P purchase lines · 335 S sale lines · 269 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.