[SCHEDULE 13G/A] Amplitude, Inc. SEC Filing

Rhea-AI Filing Summary

FMR LLC and Abigail P. Johnson have filed Amendment No. 3 to Schedule 13G for Amplitude, Inc. (NYSE: AMPL). As of the event date 06/30/2025, the reporting persons beneficially own 3,288,480.96 Class A shares, representing 3.3 % of the class. FMR LLC holds sole voting power over 3,279,820 shares and sole dispositive power over 3,288,480.96 shares; no shared voting or dispositive power is reported. The filing is made under Rule 13d-1(b) by a parent holding company (HC) and an individual (IN).

The disclosure confirms that the ownership position is now below the 5 % threshold, requiring certification that the shares are held in the ordinary course of business and not for the purpose of influencing control. No other members of a group are identified, and the signatory is authorized via power of attorney dated 05/23/2023. This amendment provides investors with updated visibility into a key institutional holder’s current stake and voting power in AMPL.

Positive

• None.

Negative

• Institutional holder FMR LLC now owns only 3.3 % of AMPL, below the 5 % reporting threshold, indicating limited influence and potentially reduced institutional sponsorship.

Insights

Buy-side Portfolio Manager

TL;DR – FMR discloses a 3.3 % stake in AMPL, below 5 %; limited control signals, modest market impact.

The filing shows FMR LLC and Abigail P. Johnson collectively control 3.29 million Class A shares, or 3.3 % of outstanding shares. Sole voting and dispositive power indicates FMR can freely trade this block, but the sub-5 % level suggests reduced regulatory oversight and diminished influence on corporate actions such as proxy voting. Because no purchase or sale prices are provided, the amendment primarily updates ownership rather than signalling a strategic transaction. For investors, the news is mildly negative-to-neutral: a large active manager is not a 5 %+ holder, which may marginally reduce perceived institutional sponsorship, yet liquidity impact is limited given AMPL’s float. Overall, the disclosure is informational with low immediate valuation effect.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

AMPLITUDE INC

(Name of Issuer)

CLASS A COMMON STOCK

(Title of Class of Securities)

03213A104

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 03213A104

1

Names of Reporting Persons

FMR LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,279,820.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,288,480.96
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,288,480.96

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.3 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP No. 03213A104

1

Names of Reporting Persons

Abigail P. Johnson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,288,480.96
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,288,480.96

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.3 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AMPLITUDE INC
(b)	Address of issuer's principal executive offices: 201 THIRD STREET,Suite 200,SAN FRANCISCO,CA,USA,94103
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: CLASS A COMMON STOCK
(e)	CUSIP No.: 03213A104
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 3288480.96
(b)	Percent of class: 3.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 3288480.96
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the CLASS A COMMON STOCK of AMPLITUDE INC. No one other person's interest in the CLASS A COMMON STOCK of AMPLITUDE INC is more than five percent of the total outstanding CLASS A COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

FMR LLC

Signature:	Richard Bourgelas
Name/Title:	Duly authorized under Power of Attorney effective as of May 23, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	08/05/2025

Abigail P. Johnson

Signature:	Richard Bourgelas
Name/Title:	Duly authorized under Power of Attorney effective as of May 23, 2023, by and on behalf of Abigail P. Johnson*
Date:	08/05/2025

Comments accompanying signature: *This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on August 8, 2023, accession number: 0000315066-23-002397.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.

FAQ

How many Amplitude (AMPL) shares does FMR LLC currently own?

FMR LLC reports beneficial ownership of 3,288,480.96 Class A shares.

What percentage of AMPL’s Class A common stock is held by FMR LLC?

The filing states a 3.3 % ownership stake.

Does FMR LLC share voting power with any other entity for its AMPL shares?

No. The firm reports sole voting power over 3,279,820 shares and zero shared voting power.

Why was this Schedule 13G/A filed?

It amends prior filings to update FMR’s ownership, which is now below the 5 % threshold, and certifies ordinary-course holding.

Who signed the Schedule 13G/A for FMR LLC and Abigail P. Johnson?

Authorized signatory Richard Bourgelas signed under a power of attorney dated 05/23/2023.