Amplitude insider sells 10,000 shares after option exercise; prior 10b5-1 sales disclosed

Rhea-AI Filing Summary

Amplitude, Inc. (AMPL) filing a Form 144 notifies the sale of 10,000 common shares by a person who exercised options on 09/15/2025. The broker listed is Morgan Stanley Smith Barney LLC and the sale's aggregate market value is reported as $110,700, with an approximate sale date of 09/15/2025 on NASDAQ. The filing shows the shares were acquired by exercise of stock options from the issuer and paid in cash on the acquisition date.

The notice also reports two recent 10b5-1 plan sales by Erica F. Schultz totaling 15,000 shares across 07/15/2025 and 08/15/2025 with gross proceeds of $94,205.25 and $85,968.00 respectively. The filer affirms no undisclosed material adverse information and references potential reliance on a 10b5-1 trading plan.

Positive

• Compliance disclosure of option exercise and sale details, including broker and aggregate value
• Prior 10b5-1 sales disclosed for the same holder, indicating planned, rule-compliant insider selling
• Attestation that no undisclosed material adverse information is known by the seller

Negative

• None.

Insights

Securities Analyst

TL;DR: A small option exercise and planned sale of 10,000 AMPL shares via Rule 144; recent 10b5-1 sales for the same holder are disclosed.

The Form 144 documents an insider-originated sale following option exercise on the same date, with 10,000 shares offered through Morgan Stanley at an aggregate value of $110,700. Recent 10b5-1 execution history shows systematic planned sales of 7,500 shares in July and 7,500 in August by Erica F. Schultz, yielding modest proceeds. Relative to the company's reported outstanding shares of 102,111,652, these transactions are immaterial from a supply/dilution perspective. The representation that no material nonpublic information exists and the mention of a 10b5-1 plan are standard compliance features. Investors should view this as routine insider liquidity rather than a signal of company-wide developments.

Corporate Governance Expert

TL;DR: Filing is procedurally correct and indicates compliance with insider-trading rules; disclosed 10b5-1 sales reduce regulatory risk.

The notice details that the securities were obtained by exercise of stock options and sold under Rule 144, with dates and cash payment noted. The disclosure of prior 10b5-1 plan sales and the signature attestation regarding material information align with good governance and regulatory expectations. The size of the sale (10,000 shares) and prior 15,000-share 10b5-1 activity are small relative to total outstanding shares, suggesting limited governance or market-impact concerns. Documentation appears routine and consistent with lawful insider liquidity practices.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	10000	110700.00	102111652	09/15/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/15/2025	Exercise of Stock Options	Issuer			10000	09/15/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for ERICA F SCHULTZ 201 Third Street, Suite 200 San Francisco CA 94103	COMMON	08/15/2025	7500	85968.00
10b5-1 Sales for ERICA F SCHULTZ 201 Third Street, Suite 200 San Francisco CA 94103	COMMON	07/15/2025	7500	94205.25

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What action does the AMPL Form 144 report?

The Form 144 reports the proposed sale of 10,000 common shares acquired by exercising stock options on 09/15/2025 with an aggregate market value of $110,700.

Who is the broker handling the AMPL sale?

The broker listed is Morgan Stanley Smith Barney LLC, located at Executive Financial Services, 1 New York Plaza, New York, NY.

Were there recent insider sales by the same holder in AMPL?

Yes. Two 10b5-1 plan sales by Erica F. Schultz: 7,500 shares on 07/15/2025 for $94,205.25 and 7,500 shares on 08/15/2025 for $85,968.00.

How material is this sale relative to AMPL's shares outstanding?

The sale of 10,000 shares is small versus 102,111,652 shares outstanding, so it appears immaterial to share supply.

How were the shares acquired and paid for?

The shares were acquired through exercise of stock options on 09/15/2025 and payment was made in cash on that date.