Form 4 Tracker
Ouster, Inc.
OUST

55 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 14, 2026Sep 16 11:13 PMMegan ChungGeneral Counsel and Secretary
Sale
11,484$33.96$390.0K189,291(D)

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Sep 14, 2026Sep 16 11:08 PMDarien SpencerChief Operating Officer
Sale
12,808$33.96$435.0K286,998.5(D)

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Sep 14, 2026Sep 16 11:01 PMCharles Angus PacalaDirector, President and CEO
Sale
30,385$33.96$1.0M1,041,816(D)

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Sep 14, 2026Sep 16 11:00 PMCyrille JacquemetChief Revenue Officer
Sale
8,896$33.96$302.1K105,538.5(D)

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Sep 14, 2026Sep 16 10:52 PMKenneth P. GianellaChief Financial Officer
Sale
15,686$33.96$532.7K245,328(D)

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Sep 14, 2026Sep 16 10:51 PMMark FrichtlChief Technology Officer
Sale
18,778$33.96$637.7K318,987(D)

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Sep 11, 2026Sep 12 1:29 AMFrichtl Mark
Proposed Sale
20,353$37.49$763.0K—

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Sep 11, 2026Sep 12 1:20 AMChung Megan
Proposed Sale
12,447$37.49$466.6K—

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Sep 11, 2026Sep 12 1:11 AMSPENCER DARIEN
Proposed Sale
13,882$37.49$520.4K—

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Sep 11, 2026Sep 12 1:07 AMJacquemet Cyrille
Proposed Sale
9,642$37.49$361.5K—

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Sep 11, 2026Sep 12 1:02 AMPacala Charles Angus
Proposed Sale
32,934$37.49$1.2M—

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Sep 11, 2026Sep 12 12:55 AMGianella Kenneth P.
Proposed Sale
17,002$37.49$637.4K—

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Aug 18, 2026Aug 20 12:32 AMKenneth P. GianellaChief Financial Officer
Sale
40,000$45.33$1.8M261,014(D)

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Aug 18, 2026Aug 18 8:04 PMKENNETH GIANELLA
Proposed Sale
40,000$45.33$1.8M—

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Aug 6, 2026Aug 7 10:26 PMStephen A SkaggsDirector
Sale
3,614$45.18$163.3K61,415(D)

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Aug 5, 2026Aug 7 10:26 PMStephen A SkaggsDirector
Sale
1,386$46.48$64.4K65,029(D)

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Aug 6, 2026Aug 6 8:03 PMSTEPHEN SKAGGS
Proposed Sale
3,614$45.18$163.3K—

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Aug 4, 2026Aug 6 12:53 AMDarien SpencerChief Operating Officer
Sale
30,000$45.00$1.4M299,806.5(D)

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Aug 5, 2026Aug 5 8:13 PMSTEPHEN SKAGGS
Proposed Sale
1,386$46.48$64.4K—

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Aug 4, 2026Aug 4 8:18 PMDARIEN R SPENCER
Proposed Sale
30,000$45.00$1.4M—

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Page 1 of 6

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Aug 26, 2026Aug 28 10:43 PMMark FrichtlChief Technology Officer
Option Exercise
100,000$14.22100,713(D)

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May 22, 2026May 27 9:14 PMMark FrichtlChief Technology Officer
Option Exercise
50,063$14.220(D)

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May 15, 2026May 15 10:41 PMMark FrichtlChief Technology Officer
Option Exercise
4,316$14.2250,063(D)

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May 14, 2026May 15 10:41 PMMark FrichtlChief Technology Officer
Option Exercise
40,000$14.2254,379(D)

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May 13, 2026May 15 10:41 PMMark FrichtlChief Technology Officer
Option Exercise
52,775$14.2294,379(D)

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May 5, 2026May 6 9:18 PMMark FrichtlChief Technology Officer
Option Exercise
13,451$2.1331,434(D)

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May 4, 2026May 6 9:18 PMMark FrichtlChief Technology Officer
Option Exercise
21,149$2.1344,885(D)

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Apr 22, 2026Apr 23 9:54 PMMark FrichtlChief Technology Officer
Option Exercise
400$2.1366,034(D)

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Apr 21, 2026Apr 21 10:19 PMMark FrichtlChief Technology Officer
Option Exercise
60,000$2.1366,434(D)

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Apr 20, 2026Apr 21 10:19 PMMark FrichtlChief Technology Officer
Option Exercise
60,000$2.13126,434(D)

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Apr 17, 2026Apr 17 9:58 PMMark FrichtlChief Technology Officer
Option Exercise
30,000$2.13186,434(D)

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Apr 15, 2026Apr 16 1:16 AMMark FrichtlChief Technology Officer
Option Exercise
20,000$2.13216,434(D)

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Apr 14, 2026Apr 16 1:16 AMMark FrichtlChief Technology Officer
Option Exercise
40,000$2.13236,434(D)

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Mar 25, 2026Mar 27 9:34 PMMark FrichtlChief Technology Officer
Option Exercise
40,000$2.13276,434(D)

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