Amplitude CFO receives 431,754 RSU stock grant

Casey Andrew reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Casey Andrew reported acquisition or exercise transactions in this Form 4 filing.

Amplitude, Inc. Chief Financial Officer Casey Andrew received a grant of 431,754 restricted stock units (RSUs), each representing one share of Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2026, subject to his continued service.

Following this award, Andrew holds 1,498,524 Class A shares in total, which includes 1,101,159 RSUs. This is a compensation-related equity grant rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 431,754 shares

Grant/Award 1 txn

Insider Casey Andrew

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	431,754	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 1,498,524 shares (Direct)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2026, subject to the continued service of the reporting person through each vesting date.
2. F2. Includes 1,101,159 RSUs.

Key Figures

RSUs granted: 431,754 RSUs Total shares after transaction: 1,498,524 shares RSUs included in holdings: 1,101,159 RSUs +2 more

5 metrics

RSUs granted 431,754 RSUs Equity award to CFO on April 15, 2026

Total shares after transaction 1,498,524 shares CFO Class A holdings following RSU grant

RSUs included in holdings 1,101,159 RSUs Portion of CFO total holdings represented by RSUs

Vesting schedule 12 quarterly installments RSUs vest from May 15, 2026, subject to continued service

Grant price per RSU $0.0000 per unit Compensation grant, no purchase price paid by CFO

Key Terms

restricted stock unit ("RSU"), Class A Common Stock, vest in twelve substantially equal quarterly installments, continued service

4 terms

restricted stock unit ("RSU") financial

"Each restricted stock unit ("RSU") represents a right to receive one share..."

Class A Common Stock financial

"one share of the Issuer's Class A Common Stock"

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.

vest in twelve substantially equal quarterly installments financial

"The RSUs vest in twelve substantially equal quarterly installments..."

continued service financial

"subject to the continued service of the reporting person through each vesting date"

FAQ

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

What insider transaction did Amplitude (AMPL) report for its CFO?

Amplitude’s CFO, Casey Andrew, received a grant of 431,754 RSUs, each convertible into one share of Class A Common Stock. This is a compensation-related stock award, not an open-market trade, and increases his total reported holdings to 1,498,524 shares.

How do Casey Andrew’s new RSUs at Amplitude (AMPL) vest?

The 431,754 RSUs granted to Amplitude CFO Casey Andrew vest in twelve substantially equal quarterly installments starting on May 15, 2026. Vesting is conditioned on his continued service with the company through each scheduled vesting date.

How many Amplitude (AMPL) shares does the CFO hold after this Form 4?

After the reported RSU grant, Amplitude CFO Casey Andrew is shown holding 1,498,524 Class A shares. This total includes 1,101,159 RSUs, which are stock units that will settle into shares as they vest over time.

Is the Amplitude (AMPL) CFO’s Form 4 transaction a market buy or sell?

The transaction is not a market buy or sell. It is coded as a grant or award, meaning Casey Andrew received 431,754 RSUs as equity compensation, with no purchase price and no open-market trading involved in this filing.

What does each RSU granted to Amplitude (AMPL) CFO represent?

Each restricted stock unit, or RSU, reported for Amplitude CFO Casey Andrew represents a right to receive one share of the company’s Class A Common Stock. Actual shares are delivered only as the RSUs vest over the specified quarterly schedule.

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

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Accepted by SEC EDGAR 04/17/2026 - 05:54 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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).

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^*

Casey Andrew

(Last) (First) (Middle)

C/O AMPLITUDE, INC.

201 3RD STREET, SUITE 200

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	04/15/2026		A		431,754(1)	A	$0.00	1,498,524(2)	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2026, subject to the continued service of the reporting person through each vesting date.

2. Includes 1,101,159 RSUs.

Remarks:

	/s/ Elizabeth Fisher, as attorney in fact for Andrew Casey	04/17/2026
	** Signature of Reporting Person	Date
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)