Transaction · 0001866692-26-000011

Crook Nathaniel Glenn

Crook Nathaniel Glenn, CCO, reported a transaction classified as withholding at Amplitude, Inc. involving 109368.000000 shares for an estimated $1425065.04. Reported holdings after the transaction were 1922696.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FCCO
AMPLAmplitude, Inc.
Trade date
Aug 17, 2026
Filing date
Aug 18, 2026
View on SEC Insider profile
Estimated value-$1.42MShares × reported price
Shares traded109k$13.03 per share
Holdings after1.92MDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

AMPL price since this filing

Daily closing prices, with the filing date and available return windows
AMPL · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -23.7%1w ago -3.2%1d ago +3.5%
Returns since7d +4.7%30d +9.7%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001866692-26-000011
Class A Common Stock
Transaction date
Aug 17, 2026
Filed Aug 18, 2026, 09:16 PM · 1d delay
Shares
109,368 sh
$13.03 per share
Estimated value
-$1.42M
Computed from shares × price
Holdings after
1,922,696 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

-12 points

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
  • tax_withholding-22 points

    transaction_code = F

    Tax withholding on vesting shares is mechanical.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Commercial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common…

  2. F2

    Includes 1,241,362 RSUs.

Original filing · 0001866692-26-000011
Related transactions

0 other transactions

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