Skates Spenser
CEO And President
Sale
Calculated transaction value
$2.28M
185,000 shares @ $12.3
Traded
Sep 10, 2026
Filed
Sep 14, 2026
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Amplitude
AMPL
ServicesBusiness Services
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
49 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Skates Spenser CEO And President | Sep 14, 2026 4-day lag | Sale Sep 10, 2026 | $2.28M Filed shares x price | SEC Form 4 View filing | |
| Skates Spenser CEO And President | Sep 14, 2026 4-day lag | Conversion Sep 10, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Crook Nathaniel Glenn Chief Commercial Officer | Sep 9, 2026 5-day lag | Sale Sep 4, 2026 | $3.9M Filed shares x price | SEC Form 4 View filing | |
| Liu Curtis Chief Technology Officer | Aug 18, 2026 1-day lag | Disposition Aug 17, 2026 | $702.03K Filed shares x price | SEC Form 4 View filing | |
| Skates Spenser CEO And President | Aug 18, 2026 1-day lag | Disposition Aug 17, 2026 | $682.37K Filed shares x price | SEC Form 4 View filing | |
| Crook Nathaniel Glenn Chief Commercial Officer | Aug 18, 2026 1-day lag | Disposition Aug 17, 2026 | $1.43M Filed shares x price | SEC Form 4 View filing | |
| Casey Andrew Chief Financial Officer | Aug 18, 2026 1-day lag | Disposition Aug 17, 2026 | $948.77K Filed shares x price | SEC Form 4 View filing | |
| Liu Curtis Chief Technology Officer | Jul 10, 2026 2-day lag | Gift Jul 8, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Liu Curtis Chief Technology Officer | Jul 10, 2026 2-day lag | Gift Jul 8, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Tzuo Tien Director | Jul 7, 2026 2-day lag | Award Jul 5, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Schultz Erica Director | Jul 7, 2026 2-day lag | Award Jul 5, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Liu Curtis Chief Technology Officer | Jun 16, 2026 15-day lag | Sale Jun 1, 2026 | $182.88K Filed shares x price | SEC Form 4 View filing | |
| Wong Catherine Director | Jun 15, 2026 3-day lag | Sale Jun 12, 2026 | $50.58K Filed shares x price | SEC Form 4 View filing | |
| Whitehurst James M Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Gill Ronald S Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Wong Catherine Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Grady Patrick W Director / Ten Percent Owner | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Schultz Erica Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Liu Curtis Chief Technology Officer | Jun 3, 2026 2-day lag | Sale Jun 1, 2026 | $178.18K Filed shares x price | SEC Form 4 View filing |
Skates Spenser
CEO And President
Conversion
Calculated transaction value
$0
185,000 shares @ $0
Traded
Sep 10, 2026
Filed
Sep 14, 2026
Crook Nathaniel Glenn
Chief Commercial Officer
Sale
Calculated transaction value
$3.9M
300,000 shares @ $12.99
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Liu Curtis
Chief Technology Officer
Disposition
Calculated transaction value
$702.03K
53,878 shares @ $13.03
Traded
Aug 17, 2026
Filed
Aug 18, 2026
Skates Spenser
CEO And President
Disposition
Calculated transaction value
$682.37K
52,369 shares @ $13.03
Traded
Aug 17, 2026
Filed
Aug 18, 2026
Crook Nathaniel Glenn
Chief Commercial Officer
Disposition
Calculated transaction value
$1.43M
109,368 shares @ $13.03
Traded
Aug 17, 2026
Filed
Aug 18, 2026
Casey Andrew
Chief Financial Officer
Disposition
Calculated transaction value
$948.77K
72,814 shares @ $13.03
Traded
Aug 17, 2026
Filed
Aug 18, 2026
Liu Curtis
Chief Technology Officer
Gift
Calculated transaction value
$0
175,000 shares @ $0
Traded
Jul 8, 2026
Filed
Jul 10, 2026
Liu Curtis
Chief Technology Officer
Gift
Calculated transaction value
$0
175,000 shares @ $0
Traded
Jul 8, 2026
Filed
Jul 10, 2026
Tzuo Tien
Director
Award
Calculated transaction value
$0
1,521 shares @ $0
Traded
Jul 5, 2026
Filed
Jul 7, 2026
Schultz Erica
Director
Award
Calculated transaction value
$0
1,659 shares @ $0
Traded
Jul 5, 2026
Filed
Jul 7, 2026
Liu Curtis
Chief Technology Officer
Sale
Calculated transaction value
$182.88K
22,786 shares @ $8.03
Traded
Jun 1, 2026
Filed
Jun 16, 2026
Wong Catherine
Director
Sale
Calculated transaction value
$50.58K
7,453 shares @ $6.79
Traded
Jun 12, 2026
Filed
Jun 15, 2026
Whitehurst James M
Director
Award
Calculated transaction value
$0
24,857 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Gill Ronald S
Director
Award
Calculated transaction value
$0
24,857 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Wong Catherine
Director
Award
Calculated transaction value
$0
24,857 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Grady Patrick W
Director / Ten Percent Owner
Award
Calculated transaction value
$0
24,857 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Schultz Erica
Director
Award
Calculated transaction value
$0
24,857 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Liu Curtis
Chief Technology Officer
Sale
Calculated transaction value
$178.18K
22,201 shares @ $8.03
Traded
Jun 1, 2026
Filed
Jun 3, 2026