Latest filingAug 18, 2026Most recent Form 4
OM
Outset Medical, Inc.
NasdaqHealthcareElectromedical & Electrotherapeutic Apparatus
Insider activity for last month from 08/17 to 09/17. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$4.65M3 sells
Net open-market-$4.65M3 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period3transactions
- S · Open-market sells · dominant3 · 100%
Activity by reported role
A joint filing can contribute to multiple roles3transactions
- Chief financial officer · dominant1 · 33%
- CHAIR1 · 33%
- GC1 · 33%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeGaeta ReneeCommon Stock · Direct
180,840Aug 17, 2026
Brottem John L.Common Stock · Direct
87,475Aug 17, 2026
Trigg LeslieCommon Stock · Direct
194,597Aug 17, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 17 → Sep 17
LessMore
Top insiders
By absolute net value across the selected period- GR-$19.9k
- TL-$15.1k
- BL-$11.6k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
OM transaction history
Filters apply within this company and selected period by defaultLatest insider transactions
Form 4 filings from last month. Click any column to sort; click it again to flip the order.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #5357 | OM | Trigg Leslie | CHAIR | sale | 3.43k | -$1.50M | S | 08/18 | 08/17 |
| #5056 | OM | Brottem John L. | GC | sale | 2.63k | -$1.15M | S | 08/18 | 08/17 |
| #5037 | OM | Gaeta Renee | CFO | sale | 4.54k | -$1.99M | S | 08/18 | 08/17 |
Outset Medical, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Outset Medical, Inc.?
Trigg Leslie, Brottem John L., Gaeta Renee.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Trigg Leslie reported a sale on Aug 17, 2026 valued at $1.50M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $46,586.68. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.