Ouster, Inc. (OUST) has 20 known insider and institutional holders on record. The largest holder is Colonnade Sponsor LLC with 5,000,000 shares. Other notable holders include Kantheti Krishna and Brunelle Anna.
Over the last 12 months, insiders have made 37 transactions in OUST stock — 12 buys (valued at $240.22K) and 21 sells (valued at $7.85M). Insider selling has exceeded buying during this period.
OUST Insider Ownership
Top Holder
Colonnade Sponsor LLC
5,000,000 shares
Buys (12 mo)
12
$240.22K value
Sells (12 mo)
21
$7.85M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Colonnade Sponsor Llc |
10 Percent Owner |
5,000,000 |
2020-10-26 |
|
| 2 |
Kantheti Krishna |
10 Percent Owner |
2,457,265 |
2023-08-17 |
|
| 3 |
Brunelle Anna |
Chief Financial Officer |
2,320,623 |
2022-12-20 |
|
| 4 |
Trafelet Remy W |
Director |
1,661,450 |
2023-01-09 |
|
| 5 |
Glazer Capital, Llc |
10 Percent Owner |
1,074,900 |
2020-12-28 |
|
| 6 |
Valani Riaz |
Director |
975,890 |
2023-02-14 |
|
| 7 |
Pacala Charles Angus |
President and CEO |
960,660 |
2026-03-16 |
|
| 8 |
Bass Carl |
Director |
807,246 |
2021-03-15 |
|
| 9 |
Dolinko Adam |
See Remarks |
714,848 |
2022-12-14 |
|
| 10 |
Spencer Darien |
Chief Operating Officer |
325,250 |
2026-03-16 |
|
| 11 |
Gianella Kenneth P. |
Chief Financial Officer |
300,000 |
2025-05-20 |
|
| 12 |
Frichtl Mark |
Chief Technology Officer |
276,434 |
2026-03-27 |
|
| 13 |
Boulet Virginia |
Director |
228,342 |
2026-03-09 |
|
| 14 |
Weinswig Mark |
Chief Financial Officer |
173,960 |
2024-12-16 |
|
| 15 |
Chung Megan |
General Counsel and Secretary |
173,548 |
2026-03-16 |
|
| 16 |
Hernandez Emmanuel T |
Director |
153,546 |
2023-01-09 |
|
| 17 |
Mitra Sundari |
Director |
139,313 |
2023-01-09 |
|
| 18 |
Del Calvo Jorge A |
Director |
133,946 |
2022-10-07 |
|
| 19 |
Tewksbury Ted L Iii |
Director |
121,969 |
2026-03-23 |
|
| 20 |
Dickerman Nathan |
President of Field Operations |
104,069 |
2023-08-17 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-25 |
Frichtl Mark |
Chief Technology Officer |
Option Exercise (Sell) |
40,000 |
$2.13 |
$85.2K |
| 2026-03-19 |
Tewksbury Ted L Iii |
Director |
Informative Sell |
1,695 |
$20.00 |
$33.9K |
| 2026-03-12 |
Chung Megan |
General Counsel and Secretary |
Informative Sell |
9,593 |
$23.43 |
$224.79K |
| 2026-03-12 |
Pacala Charles Angus |
President and CEO |
Informative Sell |
24,657 |
$23.43 |
$577.65K |
| 2026-03-12 |
Frichtl Mark |
Chief Technology Officer |
Informative Sell |
15,689 |
$23.43 |
$367.64K |
| 2026-03-12 |
Spencer Darien |
Chief Operating Officer |
Informative Sell |
10,938 |
$23.43 |
$256.31K |
| 2026-03-06 |
Boulet Virginia |
Director |
Informative Buy |
6,500 |
$20.95 |
$136.18K |
| 2026-01-16 |
Chung Megan |
General Counsel and Secretary |
Informative Sell |
5,837 |
$27.24 |
$159K |
| 2026-01-05 |
Heystee Susan |
Director |
RSU Award |
1,327 |
$24.80 |
$32.91K |
| 2025-12-19 |
Tewksbury Ted L Iii |
Director |
Informative Sell |
1,695 |
$21.47 |
$36.39K |
| 2025-12-12 |
Chung Megan |
General Counsel and Secretary |
Informative Sell |
10,696 |
$24.98 |
$267.17K |
| 2025-12-12 |
Pacala Charles Angus |
President and CEO |
Informative Sell |
24,610 |
$24.98 |
$614.69K |
| 2025-12-12 |
Frichtl Mark |
Chief Technology Officer |
Informative Sell |
15,661 |
$24.98 |
$391.21K |
| 2025-12-12 |
Heystee Susan |
Director |
Informative Sell |
11,650 |
$25.03 |
$291.59K |
| 2025-12-12 |
Spencer Darien |
Chief Operating Officer |
Informative Sell |
10,919 |
$24.98 |
$272.73K |
| 2025-12-08 |
Eyler Phillip |
Director |
RSU Award |
11,683 |
- |
- |
| 2025-12-08 |
Eyler Phillip |
Officer |
Unknown |
- |
- |
- |
| 2025-11-11 |
Tewksbury Ted L Iii |
Director |
Informative Sell |
1,695 |
$25.38 |
$43.02K |
| 2025-10-17 |
Chung Megan |
General Counsel and Secretary |
Informative Sell |
5,837 |
$31.02 |
$181.06K |
| 2025-10-06 |
Heystee Susan |
Director |
RSU Award |
1,010 |
$32.43 |
$32.75K |
| 2025-09-12 |
Chung Megan |
General Counsel and Secretary |
Informative Sell |
17,183 |
$28.46 |
$489K |
| 2025-09-12 |
Pacala Charles Angus |
President and CEO |
Informative Sell |
37,992 |
$28.46 |
$1.08M |
| 2025-09-12 |
Frichtl Mark |
Chief Technology Officer |
Informative Sell |
25,329 |
$28.46 |
$720.82K |
| 2025-09-12 |
Spencer Darien |
Chief Operating Officer |
Informative Sell |
18,274 |
$28.46 |
$520.04K |
| 2025-08-13 |
Heystee Susan |
Director |
Informative Sell |
40,390 |
$30.00 |
$1.21M |
