OUST Ouster, Inc.

NASDAQ
$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.

30D 90D 6M 1Y
Insider signal Bearish Selling ran elevated versus OUST's own trailing one-year pace, with 98% 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
2 transactions
Insiders selling
9
50 transactions
Purchases
$41.8K
1,658 shares
Sales
$40.5M
1,138,244 shares
Net activity
-$40.5M
purchases less sales

How much of that selling was preplanned? 98% planned / 2% discretionary

10b5-1 plan sales $39.7M 47 transactions · 1,114,368 shares
Discretionary sales $807.1K 3 transactions · 23,876 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

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.