Form 4: Liu Curtis reports disposition transactions in AMPL

Rhea-AI Filing Summary

Liu Curtis reported disposition transactions in a Form 4 filing for AMPL. The filing lists transactions totaling 26,672 shares at a weighted average price of $6.34 per share. Following the reported transactions, holdings were 730,280 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Liu Curtis

Role Chief Technology Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	26,672	$6.34	$169K

Holdings After Transaction: Class A Common Stock — 730,280 shares (Direct)

Footnotes (1)

1. 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 Stock delivered to the reporting person on February 15, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person. Includes 568,585 RSUs.

Form 4 Insider Transactions: What Each Field Means →

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^*

Liu Curtis

(Last) (First) (Middle)

C/O AMPLITUDE, INC.

201 THIRD ST., SUITE 200

(Street)

SAN FRANCISCO CA 94103

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Amplitude, Inc. [ AMPL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/15/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/15/2026		F(1)		26,672	D	$6.34	730,280(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. 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 Stock delivered to the reporting person on February 15, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

2. Includes 568,585 RSUs.

Remarks:

	/s/ Elizabeth Fisher, as attorney in fact for Liu Curtis	02/17/2026
	** 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.

FAQ

What insider transaction did AMPL Chief Technology Officer Liu Curtis report?

Liu Curtis reported a tax-withholding disposition of 26,672 Class A shares. The shares were withheld by Amplitude, Inc. on February 15, 2026, to cover tax obligations from vesting RSUs, and did not represent an open-market sale by Curtis.

Was the AMPL Form 4 transaction a sale of shares by Liu Curtis?

No, the Form 4 states the shares were withheld solely for tax withholding. Amplitude, Inc. retained 26,672 Class A shares to satisfy tax obligations from vested RSUs, and the footnote explicitly says this does not represent a sale by the reporting person.

How many AMPL shares does Liu Curtis own after the reported transaction?

After the transaction, Liu Curtis beneficially owned 730,280 Class A shares. This total includes 568,585 restricted stock units, reflecting both currently held stock and unvested or unsettled equity awards reported as beneficial ownership.

What was the price used for the AMPL tax-withholding shares on the Form 4?

The Form 4 lists a price of $6.34 per share for the 26,672 withheld shares. This price applies to the shares used to satisfy tax withholding obligations related to the vesting of restricted stock units on February 15, 2026.

What roles does Liu Curtis hold at Amplitude, Inc. (AMPL)?

The filing identifies Liu Curtis as a director, officer, and 10% owner. Curtis serves as Chief Technology Officer of Amplitude, Inc., making this a reportable insider transaction under Section 16(a) of the Securities Exchange Act of 1934.

What type of transaction code appears on the AMPL Form 4 for Liu Curtis?

The transaction is coded "F" for payment of tax liability by delivering securities. This indicates shares were withheld to cover taxes from equity compensation vesting, rather than a discretionary purchase or sale in the open market.