STOCK TITAN

Amplitude CEO's spouse sells 185K shares at $12.30

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Amplitude, Inc. (AMPL) reported that CEO and President Spenser Skates, a director and over-10% owner, had spouse-held Class B Common Stock converted into Class A Common Stock and 185,000 Class A shares sold on September 10, 2026 at a weighted average of $12.3006 per share, all held indirectly through his spouse and effected under a Rule 10b5-1 trading plan. Following these transactions, his spouse continues to hold 382,157 Class B shares indirectly, and Skates holds 5,342,146 Class B shares directly, each share of Class B being convertible into one share of Class A.

Positive

  • None.

Negative

  • None.
Insider Skates Spenser
Role CEO and President
Sold 185,000 shs ($2.28M)
Approx. gross sale proceeds $2.28M
Type Security Shares Price Value
Conversion Class B Common Stock F1 185,000 $0.00 $0.00
Conversion Class A Common Stock F1 185,000 $0.00 $0.00
Sale Class A Common Stock F2, F3 185,000 $12.3006 $2.28M
holding Class B Common Stock F1 -- -- --
Holdings After Transaction: Class B Common Stock — 382,157 contracts (Indirect, By Spouse); Class A Common Stock — 0 shares (Indirect, By Spouse); Class B Common Stock — 5,342,146 contracts (Direct)
Footnotes (3)
  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 shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).
  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 $12.0300 to $12.5100. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Class A shares sold 185,000 shares Class A Common Stock sold indirectly on September 10, 2026
Weighted average sale price $12.3006 per share Weighted average for the 185,000 Class A shares sold
Sale price range $12.03–$12.51 per share Price range of individual trades for the 185,000 shares sold
Class B converted by spouse 185,000 shares Class B Common Stock converted into Class A on September 10, 2026
Direct Class B holdings after transaction 5,342,146 shares Class B Common Stock held directly by Spenser Skates after the reported transactions
Indirect Class B holdings by spouse after transaction 382,157 shares Class B Common Stock held indirectly through spouse after the reported conversion and sale
10b5-1 plan adoption date June 11, 2026 Date Skates’ spouse adopted the Rule 10b5-1 trading plan for the reported sales
Class B Common Stock financial
"The Class B Common Stock is convertible at any time at the option"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Class A Common Stock financial
"convertible at any time at the option of the holder into the Issuer's Class A"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
Rule 10b5-1 trading plan regulatory
"sales reported were effected pursuant to a 10b5-1 trading plan adopted"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average sale price financial
"price reported above reflects the weighted average sale price"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AMPL report for CEO Spenser Skates on September 10, 2026?

Amplitude, Inc. reported that Spenser Skates’ spouse converted 185,000 Class B shares into 185,000 Class A shares and sold the 185,000 Class A shares on September 10, 2026, all held indirectly through the spouse.

At what price were the 185,000 AMPL Class A shares sold in this Form 4?

The 185,000 Class A shares were sold at a weighted average price of $12.3006 per share, with individual trades executed between $12.03 and $12.51 per share, according to the transaction footnote.

Was the AMPL insider sale by Skates’ spouse under a Rule 10b5-1 trading plan?

Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by Spenser Skates’ spouse on June 11, 2026, and the plan checkbox is affirmed for the filing.

How many AMPL Class B shares does Spenser Skates hold after these transactions?

After the reported transactions, Spenser Skates holds 5,342,146 shares of Class B Common Stock directly, and his spouse holds an additional 382,157 Class B shares indirectly, each share of Class B convertible into one Class A share.

What type of shares were involved in the AMPL Form 4 conversion and sale?

The Form 4 reports conversion of Class B Common Stock into Class A Common Stock on a one-to-one basis. Then 185,000 Class A shares, held indirectly through Spenser Skates’ spouse, were sold in market transactions.

Does the AMPL Form 4 show the CEO buying any shares?

No. The Form 4 reflects a conversion of Class B into Class A shares and a sale of 185,000 Class A shares held indirectly via the CEO’s spouse. It does not report any purchases of Amplitude, Inc. shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Skates Spenser

(Last)(First)(Middle)
C/O AMPLITUDE, INC.

(Street)
SAN FRANCISCO CALIFORNIA 94103

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Amplitude, Inc. [ AMPL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
CEO and President
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A Common Stock09/10/2026C185,000A$0(1)185,000IBy Spouse
Class A Common Stock09/10/2026S(2)185,000D$12.3006(3)0IBy Spouse
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Common Stock(1)09/10/2026C(1)185,000 (1) (1)Class A Common Stock185,000$0382,157IBy Spouse
Class B Common Stock(1) (1) (1)Class A Common Stock5,342,1465,342,146D
Explanation of Responses:
1. 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 shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).
2. The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on June 11, 2026.
3. This transaction was executed in multiple trades at prices ranging from $12.0300 to $12.5100. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
/s/ Elizabeth Fisher, as attorney in fact for Spenser Skates09/14/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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