Form 4 Tracker
AMBARELLA INC
AMBA

38 insider filings · Latest: Sep 25, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jan 5, 2026Jan 5 9:11 PMCHIHONG JOHN JU
Proposed Sale
7,728$75.58$584.1K—

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Dec 30, 2025Dec 31 10:21 PMChi-Hong JuSenior VP, Systems & GM, Asia
Sale
3,765$70.32$264.8K153,767(D)

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Dec 30, 2025Dec 30 9:03 PMCHIHONG JOHN JU
Proposed Sale
7,945$70.25$558.2K—

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Dec 26, 2025Dec 29 12:36 PMPAISLEY CHRISTOPHER B
Proposed Sale
500$72.18$36.1K—

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Dec 18, 2025Dec 18 9:08 PMJOHN A YOUNG
Proposed Sale
3,791$72.96$276.6K—

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Dec 16, 2025Dec 16 9:20 PMELIZABETH M SCHWARTING
Proposed Sale
624$72.38$45.2K—

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Dec 2, 2025Dec 2 9:16 PMLESLIE KOHN
Proposed Sale
150,000$71.59$10.7M—

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Oct 14, 2025Oct 14 8:05 PMCHIHONG JOHN JU
Proposed Sale
6,156$80.96$498.4K—

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Oct 13, 2025Oct 14 12:52 PMCHIHONG JOHN JU
Proposed Sale
5,057$81.29$411.1K—

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Oct 6, 2025Oct 6 8:32 PMELIZABETH M SCHWARTING
Proposed Sale
2,664$85.38$227.4K—

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Sep 22, 2025Sep 22 8:12 PMCHRISTOPHER DAY
Proposed Sale
1,000$89.00$89.0K—

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Sep 19, 2025Sep 19 8:04 PMCHRISTOPHER DAY
Proposed Sale
1,000$84.00$84.0K—

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Sep 18, 2025Sep 18 9:14 PMCHRISTOPHER DAY
Proposed Sale
829$82.50$68.4K—

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Sep 10, 2025Sep 10 8:12 PMYUN-LUNG CHEN
Proposed Sale
8,492$84.42$716.9K—

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Sep 8, 2025Sep 8 8:05 PMCHRISTOPHER DAY
Proposed Sale
1,772$85.00$150.6K—

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Jul 14, 2025Jul 14 8:54 PMCHRISTOPHER DAY
Proposed Sale
2,907$66.83$194.3K—

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Jun 25, 2025Jun 25 3:27 PMPAISLEY CHRISTOPHER B
Proposed Sale
1,000$62.58$62.6K—

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Mar 25, 2025Mar 25 2:40 PMPAISLEY CHRISTOPHER B
Proposed Sale
500$55.50$27.8K—

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Jan 16, 2025Jan 16 3:11 PMLee Chan W
Proposed Sale
1,000$77.21$77.2K—

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Jan 15, 2025Jan 15 2:37 PMLee Chan W
Proposed Sale
1,000$75.90$75.9K—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 26, 2026May 29 12:02 AMJohn Alexander YoungCFO
Option Exercise
400$55.8024,600(D)

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Mar 17, 2026Mar 19 10:42 PMJohn Alexander YoungCFO
Option Exercise
3,556—0(D)

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Mar 17, 2026Mar 19 10:42 PMYun-Lung ChenVP, Business Development and M
Option Exercise
4,651—0(D)

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Mar 17, 2026Mar 19 10:41 PMChan W LeeChief Operations Officer
Option Exercise
13,678—0(D)

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Mar 17, 2026Mar 19 10:39 PMChi-Hong JuSenior VP, Systems & GM, Asia
Option Exercise
9,553—0(D)

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Mar 17, 2026Mar 19 10:39 PMFeng-Ming WangDirector, CEO
Option Exercise
27,598—0(D)

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Mar 2, 2026Mar 4 10:39 PMJohn Alexander YoungCFO
Grant/Award
15,201—15,201(D)

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Mar 2, 2026Mar 4 10:39 PMYun-Lung ChenVP, Business Development and M
Grant/Award
7,220—7,220(D)

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Mar 2, 2026Mar 4 10:39 PMChan W LeeChief Operations Officer
Grant/Award
24,701—24,701(D)

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Mar 2, 2026Mar 4 10:38 PMChi-Hong JuSenior VP, Systems & GM, Asia
Grant/Award
17,329—17,329(D)

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Mar 2, 2026Mar 4 10:36 PMFeng-Ming WangDirector, CEO
Grant/Award
53,203—53,203(D)

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Mar 2, 2026Mar 4 10:36 PMFeng-Ming WangDirector, CEO
Option Exercise
50,000$41.360(D)

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