Skip to content
drillr.ai
Sign up

AMPL

Amplitude, Inc.

NASDAQ · Technology · Software - Application · US

$13.20
−4.42%
Ask drillr
0
Insider buys (3m)
2
Insider sells (3m)
-$6.2M
Net value (3m)
+107.1%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Sep 14, 2026Skates Spenser · director, 10 percent owner, officer: CEO and PresidentSale185,000$12
Sep 9, 2026Crook Nathaniel Glenn · officer: Chief Commercial OfficerSale300,000$13
Aug 18, 2026Skates Spenser · director, 10 percent owner, officer: CEO and PresidentF-InKind52,369$13
Aug 18, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerF-InKind53,878$13
Aug 18, 2026Casey Andrew · officer: Chief Financial OfficerF-InKind72,814$13
Aug 18, 2026Crook Nathaniel Glenn · officer: Chief Commercial OfficerF-InKind109,368$13
Jul 7, 2026Schultz Erica · directorA-Award1,659$0.00
Jul 7, 2026Tzuo Tien · directorA-Award1,521$0.00
Jun 16, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerSale22,786$8.03
Jun 15, 2026Wong Catherine · directorSale7,453$6.79
Jun 11, 2026Gill Ronald S · directorA-Award24,857$0.00
Jun 11, 2026Grady Patrick W · director, 10 percent owner: A-Award24,857$0.00
Jun 11, 2026Whitehurst James M · directorA-Award24,857$0.00
Jun 11, 2026Schultz Erica · directorA-Award24,857$0.00
Jun 11, 2026Wong Catherine · directorA-Award24,857$0.00
May 19, 2026Crook Nathaniel Glenn · officer: Chief Commercial OfficerF-InKind101,292$6.06
May 19, 2026Casey Andrew · officer: Chief Financial OfficerF-InKind64,872$6.06
May 19, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerF-InKind40,279$6.06
May 19, 2026Skates Spenser · director, 10 percent owner, officer: CEO and PresidentF-InKind39,562$6.06
May 6, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerSale17,586$8.12
Apr 22, 2026Skates Spenser · director, 10 percent owner, officer: CEO and PresidentA-Award1,323,119$0.00
Apr 17, 2026Crook Nathaniel Glenn · officer: Chief Commercial OfficerA-Award974,930$0.00
Apr 17, 2026Crook Nathaniel Glenn · officer: Chief Commercial OfficerA-Award278,551$0.00
Apr 17, 2026Casey Andrew · officer: Chief Financial OfficerA-Award431,754$0.00
Apr 17, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerA-Award417,827$0.00
Apr 7, 2026Schultz Erica · directorA-Award1,678$0.00
Apr 7, 2026Tzuo Tien · directorA-Award1,538$0.00
Mar 10, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerSale33,201$8.01
Mar 9, 2026Liu Curtis · director, 10 percent owner, officer: Chief Technology OfficerSale30,061$8.00
Feb 17, 2026Casey Andrew · officer: Chief Financial OfficerF-InKind39,438$6.34
Institutional positioning

13F filings over the trailing two quarters

New 83Increased 146Reduced 139Sold out 46
FilerActionSharesFiled
WELLINGTON MANAGEMENT GROUP LLPIncreased11,154,556May 15, 2026
WELLINGTON MANAGEMENT GROUP LLPReduced11,086,006Aug 14, 2026
BLACKROCK, INC.Increased10,162,138May 13, 2026
BlackRock, Inc.Reduced10,044,780Aug 7, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position6,165,091May 8, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCReduced6,083,939Aug 13, 2026
FMR LLCIncreased5,979,436Aug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position4,091,320May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCReduced3,939,697Aug 13, 2026
FMR LLCIncreased3,311,284May 15, 2026
SC US (TTGP), LTD.Unchanged2,798,951Aug 14, 2026
SC US (TTGP), LTD.Unchanged2,798,951May 14, 2026
MILLENNIUM MANAGEMENT LLCReduced2,654,723May 15, 2026
BAILLIE GIFFORD & COReduced2,634,150May 8, 2026
STATE STREET CORPIncreased2,604,696Aug 7, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 14, 2026