Mark Frichtl sold $3.3M of OUST
Chief Technology Officer at Ouster, Inc.. 120,000 shares at an average of $27.57, traded Apr 20, 2026, filed Apr 21, 2026.
Score components
- +15RoleOfficer
- +25Trade size$3.3M at market
- +5Share of holdings soldSold 16% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +27.1%, 3m +47.3%, 6m -.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-26-167415, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Apr 20, 2026 | MOption exercise Common Stock10b5-1 | +60,000 | $2.13 | $128k | 772,297 | Apr 21, 2026 |
| Apr 20, 2026 | SOpen-market sale Common Stock10b5-1 | -30,000 | $26.08 | $783k | 742,297 | Apr 21, 2026 |
| Apr 20, 2026 | SOpen-market sale Common Stock10b5-1 | -30,000 | $27.08 | $812k | 712,297 | Apr 21, 2026 |
| Apr 21, 2026 | MOption exercise Common Stock10b5-1 | +60,000 | $2.13 | $128k | 772,297 | Apr 21, 2026 |
| Apr 21, 2026 | SOpen-market sale Common Stock10b5-1 | -30,000 | $28.11 | $843k | 742,297 | Apr 21, 2026 |
| Apr 21, 2026 | SOpen-market sale Common Stock10b5-1 | -30,000 | $29.02 | $871k | 712,297 | Apr 21, 2026 |
| Apr 20, 2026 | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -60,000 | $0.00 | $0 | 126,434 | Apr 21, 2026 |
| Apr 21, 2026 | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -60,000 | $0.00 | $0 | 66,434 | Apr 21, 2026 |
Related signals
Other insiders at Ouster, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 26Weak | Ouster, Inc. | Megan Chung General Counsel and Secretary | $390k 11,484 shares | -6% | |
| 30Weak | Ouster, Inc. | Mark Frichtl Chief Technology Officer | $638k 18,778 shares | -6% | |
| 35Weak | Ouster, Inc. | Kenneth P. Gianella Chief Financial Officer | $533k 15,686 shares | -6% | |
| 44Moderate | Ouster, Inc. | Cyrille Jacquemet Chief Revenue Officer | $302k 8,896 shares | -8% | |
| 45Moderate | Ouster, Inc. | Charles Angus Pacala President and CEO | $1.0M 30,385 shares | -3% | |
| 32Weak | Ouster, Inc. | Darien Spencer Chief Operating Officer | $435k 12,808 shares | -4% | |
| 47Moderate | Ouster, Inc. | Kenneth P. Gianella Chief Financial Officer | $1.8M 40,000 shares | -13% | |
| 23Weak | Ouster, Inc. | Stephen A Skaggs director | $228k 5,000 shares | -8% | |
| 40Moderate | Ouster, Inc. | Darien Spencer Chief Operating Officer | $1.4M 30,000 shares | -9% | |
| 19Weak | Ouster, Inc. | Ted L Tewksbury III director | $80k 1,695 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.