Insider · CIK 0001847596
Mark Frichtl
officer
Files at OUST (Ouster, Inc.). First filing Dec 16, 2024, latest Sep 16, 2026.
Mark Frichtl files SEC Form 4 as officer at OUST (Ouster, Inc.). Since Dec 16, 2024, Mark Frichtl has reported 1 open-market buy worth $49k and 13 open-market sells worth $32M, the latest filed on Sep 16, 2026.
A track record needs three past buys with six months of prices behind them; Mark Frichtl has 1, so none is measured yet.
The newest scored trade: sold $638k of OUST on Sep 14, 2026, filed Sep 16, 2026, scored 30 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 12 sells worth $31M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 1
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 13
$49k bought, $32M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
OUST: Ouster, Inc.
OUSTOct 9, 2026 · close 39.90
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 30Weak | Ouster, Inc. | $638k 18,778 shares | -6% | +101% from low-46% from high | |
| 31Weak | Ouster, Inc. | $715k 18,414 shares | -6% | +139% from low-15% from high | |
| 40Moderate | Ouster, Inc. | $16M 384,426 shares | -57% | +260% from low-0% from high | |
| 25Weak | Ouster, Inc. | $6.0M 180,750 shares | -24% | +246% from low-8% from high | |
| 20Weak | Ouster, Inc. | $1.0M 34,600 shares | -5% | +253% from low-24% from high | |
| 0Weak | Ouster, Inc. | $12k 400 shares | -0% | +301% from low-25% from high | |
| 25Weak | Ouster, Inc. | $3.3M 120,000 shares | -16% | +303% from low-27% from high | |
| 17Weak | Ouster, Inc. | $754k 30,000 shares | -4% | +260% from low-35% from high | |
| 20Weak | Ouster, Inc. | $1.4M 60,000 shares | -8% | +247% from low-37% from high | |
| 18Weak | Ouster, Inc. | $838k 40,000 shares | -6% | +206% from low-45% from high | |
| 25Weak | Ouster, Inc. | $368k 15,689 shares | -2% | +241% from low-39% from high | |
| 26Weak | Ouster, Inc. | $391k 15,661 shares | -2% | +267% from low-35% from high | |
| 31Weak | Ouster, Inc. | $721k 25,329 shares | -4% | +388% from low-17% from high | |
| 25Weak | Ouster, Inc. | $49k 5,045 shares | +1% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 11, 2026 | OUST Ouster, Inc. | 20,353 0.03% of outstanding | $763k | Sep 11, 2026 | $2.1M |
| May 26, 2026 | OUST Ouster, Inc. | 268,742 0.42% of outstanding | $10.0M | May 26, 2026 | $16M |
| May 22, 2026 | OUST Ouster, Inc. | 115,684 0.18% of outstanding | $4.1M | May 22, 2026 | $14M |
| May 15, 2026 | OUST Ouster, Inc. | 4,316 0.01% of outstanding | $150k | May 15, 2026 | $14M |
| May 14, 2026 | OUST Ouster, Inc. | 40,000 0.06% of outstanding | $1.4M | May 14, 2026 | $12M |
| May 13, 2026 | OUST Ouster, Inc. | 136,434 0.21% of outstanding | $3.7M | May 13, 2026 | $7.7M |
| May 4, 2026 | OUST Ouster, Inc. | 34,600 0.06% of outstanding | $915k | May 4, 2026 | $6.7M |
| Apr 22, 2026 | OUST Ouster, Inc. | 400 0.00% of outstanding | $11k | Apr 22, 2026 | $6.7M |
| Apr 21, 2026 | OUST Ouster, Inc. | 60,000 0.10% of outstanding | $1.6M | Apr 21, 2026 | $4.9M |
| Apr 20, 2026 | OUST Ouster, Inc. | 60,000 0.10% of outstanding | $1.5M | Apr 20, 2026 | $3.3M |
| Apr 17, 2026 | OUST Ouster, Inc. | 30,000 0.05% of outstanding | $725k | Apr 17, 2026 | $2.6M |
| Apr 15, 2026 | OUST Ouster, Inc. | 20,000 0.03% of outstanding | $468k | Apr 15, 2026 | $2.1M |
| Apr 14, 2026 | OUST Ouster, Inc. | 40,000 0.06% of outstanding | $875k | Apr 14, 2026 | $1.2M |
| Mar 25, 2026 | OUST Ouster, Inc. | 40,000 0.06% of outstanding | $823k | Mar 25, 2026 | $368k |
| Mar 11, 2026 | OUST Ouster, Inc. | 17,922 0.03% of outstanding | $368k | Mar 12, 2026 | $391k |
| Dec 11, 2025 | OUST Ouster, Inc. | 17,311 0.03% of outstanding | $442k | Dec 12, 2025 | $721k |
| Sep 11, 2025 | OUST Ouster, Inc. | 26,674 0.05% of outstanding | $760k | Sep 12, 2025 | none |
Transactions
The newest 50 of 66 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -18,778 | $33.96 | $638k | 318,987 | 27 d ago |
| Sep 2, 2026 | OUST Ouster, Inc. | GGift Common Stock | -38,745 | $0.00 | $0 | 337,765 | 39 d ago |
| Jun 12, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -18,414 | $38.82 | $715k | 276,510 | Jun 16, 2026 |
| May 22, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +50,063 | $14.22 | $712k | 679,350 | May 27, 2026 |
| May 22, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -35,684 | $36.39 | $1.3M | 643,666 | May 27, 2026 |
| May 22, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -40,000 | $37.16 | $1.5M | 603,666 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -19,669 | $39.16 | $770k | 583,997 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -76,582 | $39.94 | $3.1M | 507,415 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -70,558 | $40.90 | $2.9M | 436,857 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -48,191 | $41.99 | $2.0M | 388,666 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -45,000 | $43.00 | $1.9M | 343,666 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -45,000 | $44.00 | $2.0M | 298,666 | May 27, 2026 |
| May 26, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -3,742 | $45.00 | $168k | 294,924 | May 27, 2026 |
| May 22, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -50,063 | $0.00 | $0 | 0 | May 27, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +31,434 | $2.13 | $67k | 743,731 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -31,434 | $31.09 | $977k | 712,297 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +21,341 | $14.22 | $303k | 733,638 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -21,341 | $34.00 | $726k | 712,297 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -35,000 | $32.00 | $1.1M | 677,297 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -2,500 | $33.00 | $83k | 674,797 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -32,500 | $33.00 | $1.1M | 642,297 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -13,659 | $34.00 | $464k | 628,638 | May 15, 2026 |
| May 14, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +40,000 | $14.22 | $569k | 668,638 | May 15, 2026 |
| May 14, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -40,000 | $35.00 | $1.4M | 628,638 | May 15, 2026 |
| May 15, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +4,316 | $14.22 | $61k | 632,954 | May 15, 2026 |
| May 15, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -4,316 | $36.00 | $155k | 628,638 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -31,434 | $0.00 | $0 | 0 | May 15, 2026 |
| May 13, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -21,341 | $0.00 | $0 | 94,379 | May 15, 2026 |
| May 14, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -40,000 | $0.00 | $0 | 54,379 | May 15, 2026 |
| May 15, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -4,316 | $0.00 | $0 | 50,063 | May 15, 2026 |
| May 4, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +21,149 | $2.13 | $45k | 733,446 | May 6, 2026 |
| May 4, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -21,149 | $30.13 | $637k | 712,297 | May 6, 2026 |
| May 5, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +13,451 | $2.13 | $29k | 725,748 | May 6, 2026 |
| May 5, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -13,451 | $30.00 | $404k | 712,297 | May 6, 2026 |
| May 4, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -21,149 | $0.00 | $0 | 44,885 | May 6, 2026 |
| May 5, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -13,451 | $0.00 | $0 | 31,434 | May 6, 2026 |
| Apr 22, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +400 | $2.13 | $852 | 712,697 | Apr 23, 2026 |
| Apr 22, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -400 | $30.00 | $12k | 712,297 | Apr 23, 2026 |
| Apr 22, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -400 | $0.00 | $0 | 66,034 | Apr 23, 2026 |
| Apr 20, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +60,000 | $2.13 | $128k | 772,297 | Apr 21, 2026 |
| Apr 20, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -30,000 | $26.08 | $783k | 742,297 | Apr 21, 2026 |
| Apr 20, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -30,000 | $27.08 | $812k | 712,297 | Apr 21, 2026 |
| Apr 21, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +60,000 | $2.13 | $128k | 772,297 | Apr 21, 2026 |
| Apr 21, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -30,000 | $28.11 | $843k | 742,297 | Apr 21, 2026 |
| Apr 21, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -30,000 | $29.02 | $871k | 712,297 | Apr 21, 2026 |
| Apr 20, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -60,000 | $0.00 | $0 | 126,434 | Apr 21, 2026 |
| Apr 21, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -60,000 | $0.00 | $0 | 66,434 | Apr 21, 2026 |
| Apr 17, 2026 | OUST Ouster, Inc. | MOption exercise Common Stock10b5-1 | +30,000 | $2.13 | $64k | 742,297 | Apr 17, 2026 |
| Apr 17, 2026 | OUST Ouster, Inc. | SOpen-market sale Common Stock10b5-1 | -30,000 | $25.15 | $754k | 712,297 | Apr 17, 2026 |
| Apr 17, 2026 | OUST Ouster, Inc. | MOption exercise Non-Qualified Stock Optionderivative10b5-1 | -30,000 | $0.00 | $0 | 186,434 | Apr 17, 2026 |
50 of 66 rows shown.
Questions about Mark Frichtl
Answered from the filings on this page, as of the latest one.
Is Mark Frichtl buying or selling?
In the last 12 months Mark Frichtl reported 0 open-market buys worth $0 and 12 open-market sells worth $31M on SEC Form 4; the latest was sold $638k of OUST on Sep 14, 2026. Grants, option exercises and tax withholding are not counted.
How did Mark Frichtl's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark Frichtl has 1.
Where does Mark Frichtl file Form 4?
Mark Frichtl has filed Form 4 at OUST (Ouster, Inc.) as Chief Technology Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.