Skip to main content

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
Sep 16, 2026 (view filing)7:13 PM ETSep 142 daysChung MeganGeneral Counsel and SecretarySSale−11.5K$33.96−$390.0K−5.7%189.3K after10b5-1
Sep 16, 2026 (view filing)7:08 PM ETSep 142 daysSpencer DarienChief Operating OfficerSSale−12.8K$33.96−$435.0K−4.3%287.0K after10b5-1
Sep 16, 2026 (view filing)7:01 PM ETSep 142 daysPacala Charles AngusPresident and CEOSSale−30.4K$33.96−$1.03M−2.8%1.04M after10b5-1
Sep 16, 2026 (view filing)7:00 PM ETSep 142 daysJacquemet CyrilleChief Revenue OfficerSSale−8.90K$33.96−$302.1K−7.8%105.5K after
Sep 16, 2026 (view filing)6:52 PM ETSep 142 daysGianella Kenneth P.Chief Financial OfficerSSale−15.7K$33.96−$532.7K−6.0%245.3K after10b5-1
Sep 16, 2026 (view filing)6:51 PM ETSep 142 daysFrichtl MarkChief Technology OfficerSSale−18.8K$33.96−$637.7K−5.6%319.0K after10b5-1
Aug 19, 2026 (view filing)8:32 PM ETAug 181 dayGianella Kenneth P.Chief Financial OfficerSSale−40.0K$45.33−$1.81M−13.3%261.0K after4 lots10b5-1
Aug 7, 2026 (view filing)6:26 PM ETAug 5-62 daysSkaggs Stephen ADirectorSSale−5.00K$45.54−$227.7K−7.5%61.4K after2 lots10b5-1
Aug 5, 2026 (view filing)8:53 PM ETAug 41 daySpencer DarienChief Operating OfficerSSale−30.0K$45.00−$1.35M−9.1%299.8K after10b5-1
Jun 22, 2026 (view filing)Jun 22Same dayTewksbury Ted L IIIDirectorSSale−1.70K$47.00−$79.7K−1.3%125.0K after10b5-1
Jun 16, 2026 (view filing)Jun 124 daysGianella Kenneth P.Chief Financial OfficerSSale−54.3K$38.82−$2.11M−15.3%301.0K after10b5-1
Jun 16, 2026 (view filing)Jun 124 daysPacala Charles AngusPresident and CEOSSale−29.8K$38.82−$1.16M−2.7%1.07M after10b5-1
Jun 16, 2026 (view filing)Jun 124 daysJacquemet CyrilleChief Revenue OfficerSSale−8.72K$38.82−$338.6K−7.1%114.4K after
Jun 16, 2026 (view filing)Jun 124 daysSpencer DarienChief Operating OfficerSSale−12.6K$38.82−$487.5K−3.7%329.8K after10b5-1
Jun 16, 2026 (view filing)Jun 124 daysChung MeganGeneral Counsel and SecretarySSale−11.3K$38.82−$437.2K−5.3%202.9K after10b5-1
Jun 16, 2026 (view filing)Jun 124 daysFrichtl MarkChief Technology OfficerSSale−18.4K$38.82−$714.8K−6.2%276.5K after10b5-1
May 27, 2026 (view filing)May 261 dayJacquemet CyrilleChief Revenue OfficerSSale−9.43K$40.00−$377.3K−7.1%123.2K after10b5-1
May 27, 2026 (view filing)May 22-265 daysFrichtl MarkChief Technology OfficerSSale−384.4K$40.60−$15.6M−56.6%294.9K after9 lots10b5-1
May 27, 2026 (view filing)May 261 daySpencer DarienChief Operating OfficerSSale−30.0K$45.00−$1.35M−8.1%342.4K after10b5-1
May 22, 2026 (view filing)May 211 dayHeystee SusanDirectorSSale−9.32K$34.81−$324.3K−21.0%35.1K after
May 21, 2026 (view filing)May 147 daysLateJacquemet CyrilleChief Revenue OfficerSSale−10.0K$35.00−$350.0K−7.0%132.6K after10b5-1
May 15, 2026 (view filing)May 13-152 daysFrichtl MarkChief Technology OfficerSSale−180.8K$33.18−$6.00M−22.3%628.6K after8 lots10b5-1
May 12, 2026 (view filing)May 111 dayBoulet VirginiaDirectorPPurchase+1.66K$25.23+$41.8K+0.7%230.0K after2 lots
May 7, 2026 (view filing)May 52 daysSkaggs Stephen ADirectorSSale−5.00K$30.00−$150.0K−7.5%61.7K after10b5-1
May 6, 2026 (view filing)May 4-52 daysFrichtl MarkChief Technology OfficerSSale−34.6K$30.08−$1.04M−4.6%712.3K after2 lots10b5-1
Apr 23, 2026 (view filing)Apr 221 dayFrichtl MarkChief Technology OfficerSSale−400$30.00−$12.0K−0.1%712.3K after10b5-1
Apr 22, 2026 (view filing)Apr 211 daySkaggs Stephen ADirectorSSale−5.00K$28.00−$140.0K−7.0%66.7K after10b5-1
Apr 21, 2026 (view filing)Apr 20-211 dayFrichtl MarkChief Technology OfficerSSale−120.0K$27.57−$3.31M−14.4%712.3K after4 lots10b5-1
Apr 17, 2026 (view filing)Apr 17Same dayFrichtl MarkChief Technology OfficerSSale−30.0K$25.15−$754.5K−4.0%712.3K after10b5-1
Apr 17, 2026 (view filing)Apr 161 dayChung MeganGeneral Counsel and SecretarySSale−5.84K$24.70−$144.2K−2.7%213.8K after10b5-1
Apr 15, 2026 (view filing)Apr 14-151 dayFrichtl MarkChief Technology OfficerSSale−60.0K$23.17−$1.39M−7.8%712.3K after2 lots10b5-1
Mar 27, 2026 (view filing)Mar 252 daysFrichtl MarkChief Technology OfficerSSale−40.0K$20.94−$837.6K−5.9%636.9K after10b5-1
Mar 23, 2026 (view filing)Mar 194 daysTewksbury Ted L IIIDirectorSSale−1.70K$20.00−$33.9K−1.4%122.0K after10b5-1
Mar 16, 2026 (view filing)Mar 124 daysSpencer DarienChief Operating OfficerSSale−10.9K$23.43−$256.3K−3.3%325.3K after10b5-1
Mar 16, 2026 (view filing)Mar 124 daysFrichtl MarkChief Technology OfficerSSale−15.7K$23.43−$367.6K−2.4%636.9K after10b5-1
Mar 16, 2026 (view filing)Mar 124 daysChung MeganGeneral Counsel and SecretarySSale−9.59K$23.43−$224.8K−5.2%173.5K after10b5-1
Mar 16, 2026 (view filing)Mar 124 daysPacala Charles AngusPresident and CEOSSale−24.7K$23.43−$577.7K−2.5%960.7K after10b5-1
Mar 9, 2026 (view filing)Mar 63 daysBoulet VirginiaDirectorPPurchase+6.50K$20.95+$136.2K+2.9%228.3K after
Jan 21, 2026 (view filing)Jan 165 daysChung MeganGeneral Counsel and SecretarySSale−5.84K$27.24−$159.0K−3.1%183.1K after10b5-1
Dec 23, 2025 (view filing)Dec 194 daysTewksbury Ted L IIIDirectorSSale−1.70K$21.47−$36.4K−1.4%123.7K after10b5-1
Dec 16, 2025 (view filing)Dec 124 daysHeystee SusanDirectorSSale−11.7K$25.03−$291.6K−21.9%41.6K after
Dec 16, 2025 (view filing)Dec 124 daysFrichtl MarkChief Technology OfficerSSale−15.7K$24.98−$391.2K−2.3%652.6K 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
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 daysChung MeganGeneral Counsel and SecretarySSale−10.7K$24.98−$267.2K−5.4%189.0K 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
Oct 20, 2025 (view filing)Oct 173 daysChung MeganGeneral Counsel and SecretarySSale−5.84K$31.02−$181.1K−2.9%197.2K after10b5-1
Sep 16, 2025 (view filing)Sep 124 daysSpencer DarienChief Operating OfficerSSale−18.3K$28.46−$520.1K−5.0%346.1K after
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 daysPacala Charles AngusPresident and CEOSSale−38.0K$28.46−$1.08M−3.6%1.01M after10b5-1