NASDAQ:OM

Outset Medical Stock Insider Trading

Healthcare > Medical - Devices

Buy OM

*Your capital is at risk

$4.90

-0.300 (-5.77%)

At Close: Aug 07, 2026

Outset Medical Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 74.99. In total, the insiders bought 6.04M and sold 76.74K OM shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	74.99
● Buy	6.04M shares
● Sell	76.74K shares
66% Buy Activity Negligible or No Correlation
Sell Signal Low Confidence Jun 03, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 74.99. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
May 15, 2025 Sell	Common Stock S-Sale	Nash Marc SVP Operations And R&d	Officer	252 Value: $4K
May 15, 2025 Sell	Common Stock S-Sale	Trigg Leslie Chair And CEO	CEO / President	935 Value: $16.6K
May 14, 2025 Buy	Common Stock A-Award	Oboyle Kevin C Director	Director	15 135 Value: $280.0K
May 14, 2025 Buy	Common Stock J-Other	Oboyle Kevin C Insider	Other	0 Value: $0
May 14, 2025 Buy	Common Stock J-Other	Oboyle Kevin C Insider	Other	0 Value: $0
May 14, 2025 Buy	Common Stock A-Award	Oboyle Kevin C Director	Director	15 135 Value: $280.0K
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Grossman D Keith Director	Director	750 Value: $6K
Mar 10, 2025 Buy	Common Stock M-Exempt	Hackett Patrick T Director	Director	1 250 000 Value: $10.6M
Mar 10, 2025 Buy	Common Stock M-Exempt	Hackett Patrick T Director	Director	1 250 000 Value: $10.6M
Mar 10, 2025 Buy	Common Stock M-Exempt	Hackett Patrick T Director	Director	625 000 Value: $5.32M
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Hackett Patrick T Director	Director	2 500 Value: $21.3K
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Grossman D Keith Director	Director	750 Value: $6K
Mar 10, 2025 Buy	Common Stock M-Exempt	Grossman D Keith Director	Director	187 500 Value: $1.60M
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Drexler Karen Director	Director	125 Value: $1K
Mar 10, 2025 Buy	Common Stock M-Exempt	Drexler Karen Director	Director	31 250 Value: $265.9K
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Lang Brent D. Director	Director	1 000 Value: $9K
Mar 10, 2025 Buy	Common Stock M-Exempt	Lang Brent D. Director	Director	250 000 Value: $2.13M
Mar 10, 2025 Buy	Series A Non-Voting Convertible Preferred M-Exempt	Trigg Leslie Chair And CEO	CEO / President	2 500 Value: $21.3K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Grossman D Keith Director	Director	750 Value: $7K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Hackett Patrick T Director	Director	5 000 Value: $45.0K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Hackett Patrick T Director	Director	2 500 Value: $22.5K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Grossman D Keith Director	Director	750 Value: $7K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Drexler Karen Director	Director	125 Value: $1K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Lang Brent D. Director	Director	1 000 Value: $9K
Mar 07, 2025 Buy	Series A Non-Voting Convertible Preferred A-Award	Trigg Leslie Chair And CEO	CEO / President	2 500 Value: $22.5K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT OUTSET MEDICAL INC.

Outset Medical, Inc., a medical technology company, develops a hemodialysis system for dialysis. It provides the Tablo Hemodialysis System, which comprises a compact console with integrated water purification, on-demand dialysate production, and software and connectivity capabilities for dialysis care in acute and home settings. The company was formerly known as Home Dialysis Plus, Ltd. and changed its name to Outset Medical, Inc. in January 2015...

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