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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 432m ago
HOUSE PTR32m ago
SEC 13F32m ago
ROBINHOOD CHAIN32m ago
SEC FORM 4/Tax withholdingVerified data

Casey Andrew reported AMPL

Chief Financial Officer · Amplitude, Inc. · Class A Common Stock

Side
F
Value
$250K
Shares
39.4K
Price
$6.34
Executed
Feb 15, 2026
Disclosed
Feb 17, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Feb 15 executedFeb 17, 2026 disclosed

AMPL · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
11/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Tax withholding — administrative, little informational value

  • Relative size+7 / 25

$250K reported value · 3.8% of prior position

  • Filing timing0 / 15

    Disclosed 2 business days after execution (deadline: 2)

  • Historical behavior+4 / 15

    1 prior trade recorded in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · AMPL

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    300 sh
    		Oct 26, 2026Oct 28, 2026
    traded Oct 26, 2026
    		+2dSEC FORM 4

    Evidence

    9
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$1,745
    100 sh
    		Oct 26, 2026Oct 28, 2026
    traded Oct 26, 2026
    		+2dSEC FORM 4

    Evidence

    13
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$3,494
    200 sh
    		Oct 26, 2026Oct 28, 2026
    traded Oct 26, 2026
    		+2dSEC FORM 4

    Evidence

    13
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$117K
    6,651 sh
    		Oct 28, 2026Oct 28, 2026
    traded Oct 28, 2026
    		+0dSEC FORM 4

    Evidence

    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    300 sh
    		Oct 26, 2026Oct 28, 2026
    traded Oct 26, 2026
    		+2dSEC FORM 4

    Evidence

    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    6,651 sh
    		Oct 28, 2026Oct 28, 2026
    traded Oct 28, 2026
    		+0dSEC FORM 4

    Evidence

    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    6,651 sh
    		Oct 28, 2026Oct 28, 2026
    traded Oct 28, 2026
    		+0dSEC FORM 4

    Evidence

    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    107.1K sh
    		Oct 23, 2026Oct 27, 2026
    traded Oct 23, 2026
    		+4dSEC FORM 4

    Evidence

    22
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$1.88M
    107.1K sh
    		Oct 23, 2026Oct 27, 2026
    traded Oct 23, 2026
    		+4dSEC FORM 4

    Evidence

    7
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    107.1K sh
    		Oct 23, 2026Oct 27, 2026
    traded Oct 23, 2026
    		+4dSEC FORM 4

    Evidence

    9
    RG
    Raji Vijaye GaneshDirector
    AMPLAmplitude, Inc.
    Grant or award
    		A—
    37.9K sh
    		Oct 15, 2026Oct 15, 2026
    traded Oct 15, 2026
    		+0dSEC FORM 4

    Evidence

    9
    TT
    Tzuo TienDirector
    AMPLAmplitude, Inc.
    Grant or award
    		A—
    818 sh
    		Oct 5, 2026Oct 7, 2026
    traded Oct 5, 2026
    		+2dSEC FORM 4

    Evidence

    9
    SE
    Schultz EricaDirector
    AMPLAmplitude, Inc.
    Grant or award
    		A—
    892 sh
    		Oct 5, 2026Oct 7, 2026
    traded Oct 5, 2026
    		+2dSEC FORM 4

    Evidence

    7
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    185.0K sh
    		Sep 10, 2026Sep 14, 2026
    traded Sep 10, 2026
    		+4dSEC FORM 4

    Evidence

    0
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Derivative conversion · 10b5-1 plan
    		C—
    185.0K sh
    		Sep 10, 2026Sep 14, 2026
    traded Sep 10, 2026
    		+4dSEC FORM 4

    Evidence

    27
    SS
    Skates SpenserDirector, CEO and President, 10% Owner
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$2.28M
    185.0K sh
    		Sep 10, 2026Sep 14, 2026
    traded Sep 10, 2026
    		+4dSEC FORM 4

    Evidence

    29
    CG
    Crook Nathaniel GlennChief Commercial Officer
    AMPLAmplitude, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$3.90M
    300.0K sh
    		Sep 4, 2026Sep 9, 2026
    traded Sep 4, 2026
    		+5dSEC FORM 4

    Evidence

    9
    TT
    Tzuo TienDirector
    AMPLAmplitude, Inc.
    Grant or award
    		A—
    1,521 sh
    		Jul 5, 2026Jul 7, 2026
    traded Jul 5, 2026
    		+2dSEC FORM 4

    Evidence

    19
    CG
    Crook Nathaniel GlennChief Commercial Officer
    AMPLAmplitude, Inc.
    Tax withholding
    		F$614K
    101.3K sh
    		May 15, 2026May 19, 2026
    traded May 15, 2026
    		+4dSEC FORM 4

    Evidence

    11
    CA
    Casey AndrewChief Financial Officer
    AMPLAmplitude, Inc.
    Tax withholding
    		F$393K
    64.9K sh
    		May 15, 2026May 19, 2026
    traded May 15, 2026
    		+4dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0002032390-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Feb 15, 2026
    Published
    Feb 17, 2026
    Ingested by INSIDER
    Nov 5, 04:16 UTC
    Last re-read
    Nov 5, 04:16 UTC

    Extracted facts

    Filer
    Casey Andrew
    Role
    Chief Financial Officer
    Transaction
    Tax withholdingAs filed: “F”
    Asset
    Amplitude, Inc.
    Ticker
    AMPL
    Shares
    39.4K
    Price per share
    $6.34
    Value
    $250,037
    Execution date (reported)
    Feb 15, 2026
    Owned after transaction
    1.07M shares
    Days from execution to publication
    2

    Calculation

    Value = shares × reported price per share

    • Shares: 39.4K
    • Price: $6.34

    = $250,037

    What this establishes

    Casey Andrew filed this Form 4 reporting a tax withholding of AMPL on Feb 15, 2026. It became public on Feb 17, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    Chief Financial Officer
    Casey Andrewcik:0002032390
    Issuer
    Amplitude, Inc.cik:0001866692

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.