OUST Ouster, Inc.
$35.33
Ouster, Inc. (OUST) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
Insider signal
In line
Selling ran in line with OUST's own trailing one-year pace, with 91% of sale value under a prearranged plan.
Cluster activity
0 buyers in the last 30 days
0 buyers in the last 90 days
4 sellers in the last 90 days
Insiders buying
1
3 transactions
Insiders selling
9
67 transactions
Purchases
$178.0K
8,158 shares
Sales
$47.0M
1,386,498 shares
Net activity
-$46.8M
purchases less sales
How much of that selling was preplanned? 91% planned / 9% discretionary
10b5-1 plan sales
$42.9M
57 transactions · 1,244,662 shares
Discretionary sales
$4.1M
10 transactions · 141,836 shares
Largest single sale: $3.1M.
Where they traded
Buy
Sell
Dot area is proportional to transaction value.
Last open-market purchase: May 11, 2026 , by Boulet Virginia .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Gianella Kenneth P. 4 fills | Chief Financial Officer | Sell 10b5-1 | 40,000 | $45.33 | $1.8M | 283,087 −12.4% of holding | |
| SKAGGS STEPHEN A | Director | Sell 10b5-1 | 3,614 | $45.18 | $163.3K | 61,415 −5.6% of holding | |
| SKAGGS STEPHEN A | Director | Sell 10b5-1 | 1,386 | $46.48 | $64.4K | 65,029 −2.1% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell 10b5-1 | 30,000 | $45.00 | $1.4M | 299,806 −9.1% of holding | |
| Tewksbury Ted L III | Director | Sell 10b5-1 | 1,695 | $47.00 | $79.7K | 124,999 −1.3% of holding | |
| Gianella Kenneth P. | Chief Financial Officer | Sell 10b5-1 | 54,337 | $38.82 | $2.1M | 301,014 −15.3% of holding | |
| Pacala Charles Angus | President and CEO | Sell 10b5-1 | 29,797 | $38.82 | $1.2M | 1,072,201 −2.7% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 18,414 | $38.82 | $714.9K | 276,510 −6.2% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell 10b5-1 | 12,559 | $38.82 | $487.6K | 329,806 −3.7% of holding | |
| Chung Megan | General Counsel and Secretary | Sell 10b5-1 | 11,261 | $38.82 | $437.2K | 202,859 −5.3% of holding | |
| Jacquemet Cyrille | Chief Revenue Officer | Sell | 8,723 | $38.82 | $338.7K | 114,434 −7.1% of holding | |
| Frichtl Mark 7 fills | Chief Technology Officer | Sell 10b5-1 | 308,742 | $41.53 | $12.8M | 583,997 −34.6% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell 10b5-1 | 30,000 | $45.00 | $1.4M | 342,366 −8.1% of holding | |
| Jacquemet Cyrille | Chief Revenue Officer | Sell 10b5-1 | 9,433 | $40.00 | $377.3K | 123,158 −7.1% of holding | |
| Frichtl Mark 2 fills | Chief Technology Officer | Sell 10b5-1 | 75,684 | $36.80 | $2.8M | 643,666 −10.5% of holding | |
| Heystee Susan | Director | Sell | 9,316 | $34.80 | $324.2K | 35,094 −21% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 4,316 | $36.00 | $155.4K | 628,638 −0.7% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 40,000 | $35.00 | $1.4M | 628,638 −6% of holding | |
| Jacquemet Cyrille | Chief Revenue Officer | Sell 10b5-1 | 10,000 | $35.00 | $350.0K | 132,590 −7% of holding | |
| Frichtl Mark 6 fills | Chief Technology Officer | Sell 10b5-1 | 136,434 | $32.56 | $4.4M | 712,297 −16.1% of holding | |
| Boulet Virginia 2 fills | Director | Buy | 1,658 | $25.23 | $41.8K | 230,000 | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 13,451 | $30.00 | $403.5K | 712,297 −1.9% of holding | |
| SKAGGS STEPHEN A | Director | Sell 10b5-1 | 5,000 | $30.00 | $150.0K | 61,690 −7.5% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 21,149 | $30.13 | $637.2K | 712,297 −2.9% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 400 | $30.00 | $12.0K | 712,297 −0.1% of holding | |
| Frichtl Mark 2 fills | Chief Technology Officer | Sell 10b5-1 | 60,000 | $28.56 | $1.7M | 742,297 −7.5% of holding | |
| SKAGGS STEPHEN A | Director | Sell 10b5-1 | 5,000 | $28.00 | $140.0K | 66,690 −7% of holding | |
| Frichtl Mark 2 fills | Chief Technology Officer | Sell 10b5-1 | 60,000 | $26.58 | $1.6M | 742,297 −7.5% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 30,000 | $25.15 | $754.4K | 712,297 −4% of holding | |
| Chung Megan | General Counsel and Secretary | Sell | 5,837 | $24.70 | $144.2K | 213,836 −2.7% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 20,000 | $24.00 | $480.0K | 712,297 −2.7% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 40,000 | $22.76 | $910.2K | 712,297 −5.3% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 40,000 | $20.94 | $837.6K | 636,882 −5.9% of holding | |
| Tewksbury Ted L III | Director | Sell 10b5-1 | 1,695 | $20.00 | $33.9K | 121,969 −1.4% of holding | |
| Pacala Charles Angus | President and CEO | Sell 10b5-1 | 24,657 | $23.43 | $577.6K | 960,660 −2.5% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 15,689 | $23.43 | $367.6K | 636,882 −2.4% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell 10b5-1 | 10,938 | $23.43 | $256.3K | 325,250 −3.3% of holding | |
| Chung Megan | General Counsel and Secretary | Sell 10b5-1 | 9,593 | $23.43 | $224.8K | 173,548 −5.2% of holding | |
| Boulet Virginia | Director | Buy | 6,500 | $20.95 | $136.2K | 228,342 | |
| Chung Megan | General Counsel and Secretary | Sell | 5,837 | $27.24 | $159.0K | 183,141 −3.1% of holding | |
| Tewksbury Ted L III | Director | Sell 10b5-1 | 1,695 | $21.47 | $36.4K | 123,664 −1.4% of holding | |
| Pacala Charles Angus | President and CEO | Sell 10b5-1 | 24,610 | $24.98 | $614.7K | 985,317 −2.4% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell 10b5-1 | 15,661 | $24.98 | $391.2K | 652,571 −2.3% of holding | |
| Heystee Susan | Director | Sell | 11,650 | $25.03 | $291.6K | 41,625 −21.9% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell 10b5-1 | 10,919 | $24.98 | $272.7K | 336,188 −3.1% of holding | |
| Chung Megan | General Counsel and Secretary | Sell 10b5-1 | 10,696 | $24.98 | $267.2K | 188,978 −5.4% of holding | |
| Tewksbury Ted L III | Director | Sell | 1,695 | $25.38 | $43.0K | 125,359 −1.3% of holding | |
| Chung Megan | General Counsel and Secretary | Sell 10b5-1 | 5,837 | $31.02 | $181.1K | 197,199 −2.9% of holding | |
| Pacala Charles Angus | President and CEO | Sell | 37,992 | $28.46 | $1.1M | 1,009,927 −3.6% of holding | |
| Frichtl Mark | Chief Technology Officer | Sell | 25,329 | $28.46 | $720.8K | 665,403 −3.7% of holding | |
| SPENCER DARIEN | Chief Operating Officer | Sell | 18,274 | $28.46 | $520.0K | 346,132 −5% of holding | |
| Chung Megan | General Counsel and Secretary | Sell | 17,183 | $28.46 | $489.0K | 203,036 −7.8% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.