Transaction · 0001610717-26-000445

Skates Spenser

Skates Spenser, CEO, PRES, reported an open-market or private sale at Amplitude, Inc. involving 6651.000000 shares for an estimated $116564.10. Reported holdings after the transaction were 0.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCEO, PRES
AMPLAmplitude, Inc.
Trade date
Oct 28, 2026
Filing date
Oct 28, 2026
View on SEC Insider profile
Disclosed value-$116kShares × reported price
Shares traded6.65k$17.53 per share
Holdings after0Indirect · By Spouse
% of reported position traded100%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 6,651 shares.

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 -5.3%1d ago -1.0%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001610717-26-000445
Class A Common Stock
Transaction date
Oct 28, 2026
Filed Oct 28, 2026, 09:45 PM · 0d delay
Shares
6,651 sh
$17.53 per share
Estimated value
-$116k
Computed from shares × price
Holdings after
0 sh
Indirect · By Spouse

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Large Sale Repeat Seller 10b5-1 Detected
Filing-only score

-6 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
  • timely_filing+4 points

    reporting_delay_days = 0

    Filing reported within two business days of the transaction.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
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

CEO and President

Officer YesDirector Yes10% YesOther No
Footnotes & amended
  1. F1

    The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into s…

  2. F2

    The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on June 11, 2026.

  3. F3

    This transaction was executed in multiple trades at prices ranging from $17.4500 to $17.7800. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes…

Original filing · 0001610717-26-000445
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