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OUST Insider Trading & Form 4 Activity

Ouster, Inc.
Last filing: May 27, 2026·11 days ago
BULLISH · LAST 90 DAYS
67%
buyers
$42K
2 buys
$324K
1 sell
-$282K
net selling
2
insiders
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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Frichtl Mark
Chief Technology Officer
$20.7M
-$20.7M
SPENCER DARIEN
Chief Operating Officer
$1.4M
-$1.4M
Jacquemet Cyrille
Chief Revenue Officer
$727K
-$727K
Heystee Susan
Director
$324K
-$324K
SKAGGS STEPHEN A
Director
$150K
-$150K
Boulet Virginia
Director
$42K
$42K

Recent transactions

Every Form 4 transaction for OUST, newest first.

SELL10b5-1
Jacquemet Cyrille · Chief Revenue Officer
Tx May 26·Filed May 27·EDGAR ↗
9,433 sh @ $40.00
$377K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
3,742 sh @ $45.00
$168K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
45,000 sh @ $43.00
$1.9M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
48,191 sh @ $41.99
$2.0M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
70,558 sh @ $40.90
$2.9M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
76,582 sh @ $39.94
$3.1M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 26·Filed May 27·EDGAR ↗
19,669 sh @ $39.16
$770K
SELL10b5-1
SPENCER DARIEN · Chief Operating Officer
Tx May 26·Filed May 27·EDGAR ↗
30,001 sh @ $45.00
$1.4M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 22·Filed May 27·EDGAR ↗
35,684 sh @ $36.39
$1.3M
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 22·Filed May 27·EDGAR ↗
50,063 sh @ $14.22
$712K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 22·Filed May 27·EDGAR ↗
40,000 sh @ $37.16
$1.5M
SELL
Heystee Susan · Director
Tx May 21·Filed May 22·EDGAR ↗
9,316 sh @ $34.80
$324K
SELL10b5-1
Jacquemet Cyrille · Chief Revenue Officer
Tx May 14·Filed May 21·EDGAR ↗
10,000 sh @ $35.00
$350K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 15·Filed May 15·EDGAR ↗
4,316 sh @ $36.00
$155K
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 15·Filed May 15·EDGAR ↗
4,316 sh @ $14.22
$61K
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 14·Filed May 15·EDGAR ↗
40,000 sh @ $14.22
$569K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 14·Filed May 15·EDGAR ↗
40,000 sh @ $35.00
$1.4M
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
31,434 sh @ $2.13
$67K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
13,659 sh @ $34.00
$464K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
32,500 sh @ $33.00
$1.1M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
2,500 sh @ $33.00
$83K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
35,000 sh @ $32.00
$1.1M
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
21,341 sh @ $34.00
$726K
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
21,341 sh @ $14.22
$303K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 13·Filed May 15·EDGAR ↗
31,434 sh @ $31.09
$977K
BUY
Boulet Virginia · Director
Tx May 11·Filed May 12·EDGAR ↗
1,050 sh @ $25.16
$26K
BUY
Boulet Virginia · Director
Tx May 11·Filed May 12·EDGAR ↗
608 sh @ $25.35
$15K
SELL10b5-1
SKAGGS STEPHEN A · Director
Tx May 5·Filed May 7·EDGAR ↗
5,000 sh @ $30.00
$150K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 5·Filed May 6·EDGAR ↗
13,451 sh @ $30.00
$404K
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 5·Filed May 6·EDGAR ↗
13,451 sh @ $2.13
$29K
SELL10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 4·Filed May 6·EDGAR ↗
21,149 sh @ $30.13
$637K
EXERCISE10b5-1
Frichtl Mark · Chief Technology Officer
Tx May 4·Filed May 6·EDGAR ↗
21,149 sh @ $2.13
$45K

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About OUST insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for OUST from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying OUST always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Ouster, Inc. (OUST) when they form.

Where does OUST insider trading data come from?

Every Form 4 filing for OUST is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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