Mark Frichtl sold $16M of OUST
Chief Technology Officer at Ouster, Inc.. 384,426 shares at an average of $40.60, traded May 22, 2026, filed May 27, 2026.
Score components
- +15RoleOfficer
- +25Trade size$15.6M at market
- +20Share of holdings soldSold 57% of holdings
- +15Cluster4 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.
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 0001193125-26-242160, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 22, 2026 | MOption exercise Common Stock10b5-1 | +50,063 | $14.22 | $712k | 679,350 | May 27, 2026 |
| May 22, 2026 | SOpen-market sale Common Stock10b5-1 | -35,684 | $36.39 | $1.3M | 643,666 | May 27, 2026 |
| May 22, 2026 | SOpen-market sale Common Stock10b5-1 | -40,000 | $37.16 | $1.5M | 603,666 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -19,669 | $39.16 | $770k | 583,997 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -76,582 | $39.94 | $3.1M | 507,415 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -70,558 | $40.90 | $2.9M | 436,857 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -48,191 | $41.99 | $2.0M | 388,666 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -45,000 | $43.00 | $1.9M | 343,666 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -45,000 | $44.00 | $2.0M | 298,666 | May 27, 2026 |
| May 26, 2026 | SOpen-market sale Common Stock10b5-1 | -3,742 | $45.00 | $168k | 294,924 | May 27, 2026 |
| May 22, 2026 | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -50,063 | $0.00 | $0 | 0 | May 27, 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.