Amplitude CCO reports 877,545 Class A shares

Amplitude, Inc. filed an initial ownership report showing that Chief Commercial Officer Nathaniel Glenn Crook directly holds 877,545 shares of the company’s Class A Common Stock.

Rhea-AI Filing Summary

Amplitude, Inc. filed an initial ownership report showing that Chief Commercial Officer Nathaniel Glenn Crook directly holds 877,545 shares of the company’s Class A Common Stock. This total includes 447,890 restricted stock units, which represent share-based compensation that will generally settle in stock over time.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Crook Nathaniel Glenn

Role Chief Commercial Officer

Type	Security	Shares	Price	Value
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 877,545 shares (Direct)

Footnotes (1)

1. F1. Includes 447,890 restricted stock units.

FAQ

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

What does Amplitude (AMPL) insider Nathaniel Glenn Crook report on this Form 3?

Nathaniel Glenn Crook reports his initial ownership in Amplitude Class A Common Stock. He directly holds 877,545 shares, including a substantial component of restricted stock units, providing a clear baseline of his equity stake as Chief Commercial Officer.

How many Amplitude (AMPL) shares does Nathaniel Glenn Crook beneficially own?

Nathaniel Glenn Crook beneficially owns 877,545 shares of Amplitude Class A Common Stock. This figure reflects his direct holdings as reported, establishing his equity position in the company at the time of this initial ownership filing.

How many restricted stock units does Amplitude (AMPL) executive Nathaniel Glenn Crook hold?

The filing states that Nathaniel Glenn Crook’s position includes 447,890 restricted stock units. These units are share-based awards that generally convert into Class A Common Stock over time, tying a large portion of his compensation directly to Amplitude’s equity.

Is this Amplitude (AMPL) Form 3 a buy or sell transaction?

This Form 3 is not a buy or sell report; it is an initial statement of ownership. It lists Nathaniel Glenn Crook’s existing direct holdings in Amplitude’s Class A Common Stock, including restricted stock units, rather than describing new market transactions.

What type of security does Nathaniel Glenn Crook hold in Amplitude (AMPL)?

Nathaniel Glenn Crook holds Amplitude’s Class A Common Stock, as disclosed in the filing. His reported position totals 877,545 shares, which includes 447,890 restricted stock units that will typically settle into shares under the company’s equity compensation arrangements.

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

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Accepted by SEC EDGAR 03/17/2026 - 05:06 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Crook Nathaniel Glenn

(Last) (First) (Middle)

C/O AMPLITUDE, INC.

201 THIRD STREET, SUITE 200

(Street)

SAN FRANCISCO CA 94103

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/06/2026

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	877,545(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 447,890 restricted stock units.

Remarks:

Exhibit 24.1 - Power of Attorney

	/s/ Elizabeth Fisher, as attorney in fact for Nathaniel Glenn Crook	03/17/2026
	** 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 5 (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.