SEC Form 4Coverage since Aug 13, 2025Open-market trades only
$OUST insider trading
Over the last 12 months, Ouster insiders reported 1 buy totaling $136K and 42 sales totaling $26.6M across SEC Form 4 filings. 91% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $136K 1 event
- Sold · 12m
- $26.6M 42 events
- Events · 12m
- 43 Form 4 filings, grouped
- Insiders · 12m
- 10 distinct reporters
- 10b5-1 share
- 91% of events, not dollars
Side
Price · $OUST · 3Mvia TradingView
Top insiders · 12m
Frichtl MarkChief Technology Officer11× · $10.8M
Chung MeganGeneral Counsel and Secretary7× · $1.8M
SPENCER DARIENChief Operating Officer6× · $4.2M
Tewksbury Ted L III—4× · $193K
Pacala Charles AngusPresident and CEO4× · $3.4M
All insider trades
48 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 11,484 | $33.96 | $390K | -5.7% | plan |
| Sep 14, 2026 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 12,808 | $33.96 | $435K | -4.3% | plan |
| Sep 14, 2026 | Pacala Charles AngusPresident and CEO · O·D | ▼ Sale | 30,385 | $33.96 | $1.0M | -2.8% | plan |
| Sep 14, 2026 | Jacquemet CyrilleChief Revenue Officer · O | ▼ Sale | 8,896 | $33.96 | $302K | -7.8% | — |
| Sep 14, 2026 | Gianella Kenneth P.Chief Financial Officer · O | ▼ Sale | 15,686 | $33.96 | $533K | -6% | plan |
| Sep 14, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 18,778 | $33.96 | $638K | -5.6% | plan |
| Aug 18, 2026 | Gianella Kenneth P.Chief Financial Officer · O | ▼ Sale | 40,000 | $45.33 | $1.8M | -13.3% | plan · 4 tranches |
| Aug 6, 2026 | SKAGGS STEPHEN AD | ▼ Sale | 5,000 | $45.54 | $228K | -7.5% | plan · 2 tranches |
| Aug 4, 2026 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 30,000 | $45 | $1.4M | -9.1% | plan |
| Jun 22, 2026 | Tewksbury Ted L IIID | ▼ Sale | 1,695 | $47 | $80K | -1.3% | plan |
| Jun 12, 2026 | Gianella Kenneth P.Chief Financial Officer · O | ▼ Sale | 54,337 | $38.82 | $2.1M | -15.3% | plan |
| Jun 12, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 18,414 | $38.82 | $715K | -6.2% | plan |
| Jun 12, 2026 | Pacala Charles AngusPresident and CEO · O·D | ▼ Sale | 29,797 | $38.82 | $1.2M | -2.7% | plan |
| Jun 12, 2026 | Jacquemet CyrilleChief Revenue Officer · O | ▼ Sale | 8,723 | $38.82 | $339K | -7.1% | — |
| Jun 12, 2026 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 12,559 | $38.82 | $488K | -3.7% | plan |
| Jun 12, 2026 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 11,261 | $38.82 | $437K | -5.3% | plan |
| May 26, 2026 | Jacquemet CyrilleChief Revenue Officer · O | ▼ Sale | 9,433 | $40 | $377K | -7.1% | plan |
| May 26, 2026 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 30,000.5 | $45 | $1.4M | -8.1% | plan |
| May 22, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 35,684 | $36.39 | $1.3M | -5.3% | plan |
| May 5, 2026 | SKAGGS STEPHEN AD | ▼ Sale | 5,000 | $30 | $150K | -7.5% | plan |
| May 5, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 34,600 | $30.08 | $1.0M | -4.6% | plan · 2 tranches |
| Apr 22, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 400 | $30 | $12K | -0.1% | plan |
| Apr 21, 2026 | SKAGGS STEPHEN AD | ▼ Sale | 5,000 | $28 | $140K | -7% | plan |
| Apr 21, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 120,000 | $27.57 | $3.3M | -14.4% | plan · 4 tranches |
| Apr 17, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 30,000 | $25.15 | $754K | -4% | plan |
| Apr 16, 2026 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 5,837 | $24.7 | $144K | -2.7% | plan |
| Apr 15, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 60,000 | $23.17 | $1.4M | -7.8% | plan · 2 tranches |
| Mar 25, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 40,000 | $20.94 | $838K | -5.9% | plan |
| Mar 19, 2026 | Tewksbury Ted L IIID | ▼ Sale | 1,695 | $20 | $34K | -1.4% | plan |
| Mar 12, 2026 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 10,938 | $23.43 | $256K | -3.3% | plan |
| Mar 12, 2026 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 15,689 | $23.43 | $368K | -2.4% | plan |
| Mar 12, 2026 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 9,593 | $23.43 | $225K | -5.2% | plan |
| Mar 12, 2026 | Pacala Charles AngusPresident and CEO · O·D | ▼ Sale | 24,657 | $23.43 | $578K | -2.5% | plan |
| Mar 6, 2026 | Boulet VirginiaD | ▲ Buy | 6,500 | $20.95 | $136K | +2.9% | — |
| Jan 16, 2026 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 5,837 | $27.24 | $159K | -3.1% | plan |
| Dec 19, 2025 | Tewksbury Ted L IIID | ▼ Sale | 1,695 | $21.47 | $36K | -1.4% | plan |
| Dec 12, 2025 | Heystee SusanD | ▼ Sale | 11,650 | $25.03 | $292K | -21.9% | — |
| Dec 12, 2025 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 15,661 | $24.98 | $391K | -2.3% | plan |
| Dec 12, 2025 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 10,919 | $24.98 | $273K | -3.1% | plan |
| Dec 12, 2025 | Pacala Charles AngusPresident and CEO · O·D | ▼ Sale | 24,610 | $24.98 | $615K | -2.4% | plan |
| Dec 12, 2025 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 10,696 | $24.98 | $267K | -5.4% | plan |
| Nov 11, 2025 | Tewksbury Ted L IIID | ▼ Sale | 1,695 | $25.38 | $43K | -1.3% | plan |
| Oct 17, 2025 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 5,836.8 | $31.02 | $181K | -2.9% | plan |
| Sep 12, 2025 | SPENCER DARIENChief Operating Officer · O | ▼ Sale | 18,274 | $28.46 | $520K | -5% | — |
| Sep 12, 2025 | Frichtl MarkChief Technology Officer · O | ▼ Sale | 25,329 | $28.46 | $721K | -3.7% | plan |
| Sep 12, 2025 | Pacala Charles AngusPresident and CEO · O·D | ▼ Sale | 37,992 | $28.46 | $1.1M | -3.6% | plan |
| Sep 12, 2025 | Chung MeganGeneral Counsel and Secretary · O | ▼ Sale | 17,183 | $28.46 | $489K | -7.8% | — |
| Aug 13, 2025 | Heystee SusanD | ▼ Sale | 40,389.6 | $30 | $1.2M | -43.6% | — |
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About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $OUST feed.