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Ouster, Inc.

OUST
Exchange
Nasdaq
Industry
General Industrial Machinery & Equipment, NEC
SEC CIK
0001816581

In the last 90 days, Ouster, Inc. insiders filed 0 open-market purchases and 9 sales; 331 institutions reported holding it in 13F filings for Q2 2026, worth $2.22B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Ouster, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
9 filings
7 insiders, $6.72M in total
Insiders trading
7
Net value
−$6.72M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Ouster, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Ouster, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Chung MeganGeneral Counsel and Secretary189,291Sep 16, 20269
Spencer DarienChief Operating Officer286,999Sep 16, 20267
Pacala Charles AngusPresident and CEO1,041,816Sep 16, 20265
Jacquemet CyrilleChief Revenue Officer105,539Sep 16, 20264
Gianella Kenneth P.Chief Financial Officer245,328Sep 16, 20264
Frichtl MarkChief Technology Officer318,987Sep 16, 202615
Skaggs Stephen ADirector61,415Aug 7, 20264
Heystee SusanDirector40,479Jul 8, 20267
Maddock Ernest EDirector88,902Jun 22, 20261
Tewksbury Ted L IIIDirector124,999Jun 22, 20264
Eyler PhillipDirector20,383Jun 22, 20262
Corrreia ChristinaDirector76,415Jun 22, 20261
Boulet VirginiaDirector230,000May 12, 20262
Geng ChenInterim CFO68,090Mar 25, 20250
Weinswig MarkChief Financial Officer173,960Dec 16, 20240
Radstrom KarinDirector60,148Oct 9, 20240
Slanina KristinDirector46,421Jul 9, 20240
Kantheti Krishna10% Owner2,443,226IndirectAug 17, 20230
Banyan Venture Holdings LLC10% Owner2,443,226IndirectAug 17, 20230
Dickerman NathanPresident of Field Operations104,069Aug 17, 20230
Valani RiazDirector186,254Feb 14, 20230
Hernandez Emmanuel TDirector153,546Jan 9, 20230
Trafelet Remy WDirector1,661,450Jan 9, 20230
Mitra SundariDirector139,313Jan 9, 20230
Brunelle Anna S.Chief Financial Officer2,320,623Dec 20, 20220
Dolinko AdamSEE REMARKS714,848Dec 14, 20220
Del Calvo Jorge ADirector133,946Oct 7, 20220
McIntyre ShaunaPres. of Ouster Automotive1,572,249Oct 26, 20210
Pasek MyraSee Remarks–Jul 14, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 19, 2023 (view filing)Dec 181 daySpencer DarienChief Operating OfficerSSale−241$6.85−$1.65K−0.1%257.8K after
Mar 4, 2024 (view filing)Feb 294 daysWeinswig MarkChief Financial OfficerSSale−597$5.43−$3.24K−0.3%176.8K after
Mar 13, 2024 (view filing)Mar 121 dayChung MeganGeneral Counsel and SecretarySSale−3.20K$5.13−$16.4K−3.3%93.8K after
Mar 13, 2024 (view filing)Mar 121 dayWeinswig MarkChief Financial OfficerSSale−3.08K$5.13−$15.8K−1.7%173.7K after
Mar 13, 2024 (view filing)Mar 121 daySpencer DarienChief Operating OfficerSSale−4.66K$5.13−$23.9K−1.8%253.2K after
Mar 19, 2024 (view filing)Mar 181 daySpencer DarienChief Operating OfficerSSale−286$4.84−$1.38K−0.1%252.9K after
Apr 2, 2024 (view filing)Apr 11 dayChung MeganGeneral Counsel and SecretarySSale−5.78K$7.96−$46.0K−3.4%164.0K after
Apr 4, 2024 (view filing)Apr 22 daysWeinswig MarkChief Financial OfficerSSale−20.0K$9.35−$186.9K−7.8%236.8K after2 lots10b5-1
May 16, 2024 (view filing)May 151 dayPacala Charles AngusPresident and CEOPPurchase+16.0K$12.33+$197.3K+2.3%716.9K after
May 16, 2024 (view filing)May 151 dayFrichtl MarkChief Technology OfficerPPurchase+8.00K$12.34+$98.7K+1.6%505.1K after
May 16, 2024 (view filing)May 151 dayBoulet VirginiaDirectorPPurchase+10.0K$12.20+$122.0K+6.1%173.1K after
May 30, 2024 (view filing)May 291 dayWeinswig MarkChief Financial OfficerSSale−7.16K$11.72−$83.9K−3.0%232.6K after
Jun 13, 2024 (view filing)Jun 121 dayWeinswig MarkChief Financial OfficerSSale−2.54K$11.14−$28.2K−1.1%230.1K after
Jun 13, 2024 (view filing)Jun 121 dayChung MeganGeneral Counsel and SecretarySSale−2.64K$11.14−$29.4K−1.6%163.4K after
Jun 13, 2024 (view filing)Jun 121 daySpencer DarienChief Operating OfficerSSale−3.84K$11.14−$42.7K−1.2%310.0K after
Jun 17, 2024 (view filing)Jun 134 daysBoulet VirginiaDirectorPPurchase+10.0K$10.30+$103.0K+5.8%183.1K afterAmended
Jun 20, 2024 (view filing)Jun 182 daysSpencer DarienChief Operating OfficerSSale−248$10.87−$2.70K−0.1%309.7K after
Aug 19, 2024 (view filing)Aug 163 daysHeystee SusanDirectorSSale−6.40K$7.83−$50.1K−5.5%111.0K after
Aug 19, 2024 (view filing)Aug 163 daysBoulet VirginiaDirectorPPurchase+10.0K$7.82+$78.2K+5.0%208.3K after
Aug 19, 2024 (view filing)Aug 163 daysMaddock Ernest EDirectorPPurchase+8.00K$7.79+$62.3K+13.1%69.1K after
Aug 30, 2024 (view filing)Aug 291 dayWeinswig MarkChief Financial OfficerSSale−519$7.35−$3.81K−0.2%229.6K after
Sep 16, 2024 (view filing)Sep 124 daysSpencer DarienChief Operating OfficerSSale−3.84K$6.16−$23.7K−1.2%305.9K after
Sep 16, 2024 (view filing)Sep 124 daysChung MeganGeneral Counsel and SecretarySSale−2.64K$6.16−$16.3K−1.6%160.7K after
Sep 16, 2024 (view filing)Sep 124 daysWeinswig MarkChief Financial OfficerSSale−2.54K$6.16−$15.6K−1.1%227.0K after
Sep 18, 2024 (view filing)Sep 171 daySpencer DarienChief Operating OfficerSSale−263$6.36−$1.67K−0.1%305.6K after
Nov 22, 2024 (view filing)Nov 20-212 daysWeinswig MarkChief Financial OfficerSSale−35.9K$8.75−$313.8K−15.6%194.2K after3 lots10b5-1
Dec 3, 2024 (view filing)Nov 294 daysWeinswig MarkChief Financial OfficerSSale−518$9.70−$5.02K−0.3%193.7K after
Dec 16, 2024 (view filing)Dec 124 daysSpencer DarienChief Operating OfficerSSale−14.9K$9.69−$144.1K−4.8%291.7K after
Dec 16, 2024 (view filing)Dec 124 daysPacala Charles AngusPresident and CEOPPurchase+51.0K$9.79+$498.9K+7.1%770.0K after2 lots
Dec 16, 2024 (view filing)Dec 124 daysFrichtl MarkChief Technology OfficerPPurchase+5.04K$9.78+$49.3K+1.0%513.1K after2 lots
Dec 16, 2024 (view filing)Dec 124 daysWeinswig MarkChief Financial OfficerSSale−19.7K$9.69−$191.0K−10.2%174.0K after
Dec 16, 2024 (view filing)Dec 124 daysChung MeganGeneral Counsel and SecretarySSale−13.7K$9.69−$132.5K−8.4%149.6K after
Dec 18, 2024 (view filing)Dec 162 daysSpencer DarienChief Operating OfficerSSale−248$9.08−$2.25K−0.1%291.5K after
Mar 14, 2025 (view filing)Mar 122 daysSpencer DarienChief Operating OfficerSSale−4.49K$7.63−$34.3K−1.5%287.0K after
Mar 14, 2025 (view filing)Mar 122 daysChung MeganGeneral Counsel and SecretarySSale−3.08K$7.63−$23.5K−2.1%146.6K after
Mar 14, 2025 (view filing)Mar 122 daysGeng ChenInterim CFOSSale−3.05K$7.63−$23.3K−7.4%38.1K after
Mar 18, 2025 (view filing)Mar 171 daySpencer DarienChief Operating OfficerSSale−249$8.02−$2.00K−0.1%286.7K after
Mar 28, 2025 (view filing)Mar 262 daysChung MeganGeneral Counsel and SecretarySSale−5.80K$11.24−$65.2K−2.6%220.8K after10b5-1
Jun 16, 2025 (view filing)Jun 124 daysSpencer DarienChief Operating OfficerSSale−3.23K$18.76−$60.5K−0.9%364.4K after
Jun 16, 2025 (view filing)Jun 124 daysChung MeganGeneral Counsel and SecretarySSale−2.83K$18.76−$53.1K−1.3%220.2K after
Aug 15, 2025 (view filing)Aug 132 daysHeystee SusanDirectorSSale−40.4K$30.00−$1.21M−43.6%52.3K after
Sep 16, 2025 (view filing)Sep 124 daysChung MeganGeneral Counsel and SecretarySSale−17.2K$28.46−$489.0K−7.8%203.0K after
Sep 16, 2025 (view filing)Sep 124 daysPacala Charles AngusPresident and CEOSSale−38.0K$28.46−$1.08M−3.6%1.01M after10b5-1
Sep 16, 2025 (view filing)Sep 124 daysFrichtl MarkChief Technology OfficerSSale−25.3K$28.46−$720.9K−3.7%665.4K after10b5-1
Sep 16, 2025 (view filing)Sep 124 daysSpencer DarienChief Operating OfficerSSale−18.3K$28.46−$520.1K−5.0%346.1K after
Oct 20, 2025 (view filing)Oct 173 daysChung MeganGeneral Counsel and SecretarySSale−5.84K$31.02−$181.1K−2.9%197.2K after10b5-1
Nov 12, 2025 (view filing)Nov 111 dayTewksbury Ted L IIIDirectorSSale−1.70K$25.38−$43.0K−1.3%125.4K after10b5-1
Dec 16, 2025 (view filing)Dec 124 daysChung MeganGeneral Counsel and SecretarySSale−10.7K$24.98−$267.2K−5.4%189.0K after10b5-1
Dec 16, 2025 (view filing)Dec 124 daysPacala Charles AngusPresident and CEOSSale−24.6K$24.98−$614.8K−2.4%985.3K after10b5-1
Dec 16, 2025 (view filing)Dec 124 daysSpencer DarienChief Operating OfficerSSale−10.9K$24.98−$272.8K−3.1%336.2K after10b5-1