Amplitude, Inc. (AMPL) Insider Trading

Over the last 3 months, AMPL insiders made 0 open-market buys and 3 sales, a net sale of -$649K (SEC Form 4). Over the last 6 months, 162 institutions increased and 128 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
3
Net (3m)
-$649.3K
Insider trades by month Buys Sells
Sep
Oct
Nov
Dec
Mar
May
Context3-month price -1.5%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
May 19, 2026Skates Spenserdirector, 10 percent owner, officer: CEO and PresidentTax39,562$6.06
May 19, 2026Crook Nathaniel Glennofficer: Chief Commercial OfficerTax101,292$6.06
May 19, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerTax40,279$6.06
May 19, 2026Casey Andrewofficer: Chief Financial OfficerTax64,872$6.06
May 6, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerSell17,586$8.12
Apr 22, 2026Skates Spenserdirector, 10 percent owner, officer: CEO and PresidentGrant1,323,119—
Apr 17, 2026Casey Andrewofficer: Chief Financial OfficerGrant431,754—
Apr 17, 2026Crook Nathaniel Glennofficer: Chief Commercial OfficerGrant278,551—
Apr 17, 2026Crook Nathaniel Glennofficer: Chief Commercial OfficerGrant974,930—
Apr 17, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerGrant417,827—
Apr 7, 2026Schultz EricadirectorGrant1,678—
Apr 7, 2026Tzuo TiendirectorGrant1,538—
Mar 10, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerSell33,201$8.01
Mar 9, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerSell30,061$8.00
Feb 17, 2026Casey Andrewofficer: Chief Financial OfficerTax39,438$6.34
Feb 17, 2026HANSEN THOMAS NEERGAARDofficer: PresidentTax69,142$6.34
Feb 17, 2026Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerTax26,672$6.34
Jan 7, 2026Tzuo TiendirectorGrant999—
Dec 30, 2025Skates Spenserdirector, 10 percent owner, officer: Chief Executive OfficerSell100$12.00
Dec 29, 2025Skates Spenserdirector, 10 percent owner, officer: Chief Executive OfficerSell42,743$12.01
Dec 17, 2025Schultz EricadirectorSell10,000$10.88
Dec 17, 2025Schultz EricadirectorOption10,000$4.19
Nov 19, 2025Schultz EricadirectorOption10,000$4.19
Nov 19, 2025Schultz EricadirectorSell10,000$10.23
Nov 18, 2025Casey Andrewofficer: Chief Financial OfficerTax54,400$10.73
Nov 18, 2025Liu Curtisdirector, 10 percent owner, officer: Chief Technology OfficerTax36,092$10.73
Nov 18, 2025HANSEN THOMAS NEERGAARDofficer: PresidentTax91,618$10.73
Nov 13, 2025Skates Spenserdirector, 10 percent owner, officer: Chief Executive OfficerSell400,000$10.99
Nov 12, 2025Casey Andrewofficer: Chief Financial OfficerBuy30,000$9.99
Oct 17, 2025Schultz EricadirectorSell10,000$10.12

Source: AMPL SEC Form 4 filings, latest May 19, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their AMPL positions over the last 6 months (SEC Form 13F).

Increased
162
New positions
76
Reduced
128
Sold out
67
Largest moves
InstitutionActionSharesFiled
WELLINGTON MANAGEMENT GROUP LLPIncreased11.2MMay 15, 2026
VANGUARD GROUP INCIncreased10.8MJan 29, 2026
BLACKROCK, INC.Increased10.2MMay 13, 2026
BLACKROCK, INC.Increased9.8MFeb 12, 2026
ALLIANCEBERNSTEIN L.P.Increased6.2MFeb 17, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position6.2MMay 8, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position4.1MMay 15, 2026
POINT72 ASSET MANAGEMENT, L.P.Increased3.5MFeb 17, 2026
FMR LLCIncreased3.3MMay 15, 2026
SC US (TTGP), LTD.Unchanged2.8MFeb 13, 2026
SC US (TTGP), LTD.Unchanged2.8MMay 14, 2026
BAILLIE GIFFORD & COIncreased2.7MJan 23, 2026
NUVEEN, LLCIncreased2.6MFeb 12, 2026
BAILLIE GIFFORD & COReduced2.6MMay 8, 2026
NUVEEN, LLCReduced2.6MApr 30, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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