Fastly (FSLY) officer sold 148K shares, now plans more

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) disclosed that officer Richard Wong filed a notice under Rule 144 for a proposed sale of up to 47,676 shares of Fastly common stock. The shares are to be sold through Morgan Stanley Smith Barney LLC, with an indicated aggregate market value of $1,082,721.96, and Fastly reports 159,300,000 shares of common stock outstanding. The shares relate to Restricted Stock Units acquired from the issuer on 08/15/2026. Wong also reports that during the prior three months, he sold 148,015 shares of common stock on 08/18/2026 for proceeds of $4,234,709.15.

Key Figures

Shares proposed for sale under Rule 144: 47,676 shares Aggregate market value of proposed sale: $1,082,721.96 Shares outstanding: 159,300,000 shares +3 more

6 metrics

Shares proposed for sale under Rule 144 47,676 shares Common stock to be sold for Richard Wong’s account

Aggregate market value of proposed sale $1,082,721.96 Indicated value for 47,676 Fastly common shares

Shares outstanding 159,300,000 shares Fastly common stock outstanding as referenced in the notice

Shares sold in prior 3 months 148,015 shares Fastly common stock sold on 08/18/2026 by Richard Wong

Proceeds from prior 3‑month sale $4,234,709.15 Aggregate proceeds from 148,015 shares sold on 08/18/2026

Date RSUs acquired 08/15/2026 Acquisition date for Restricted Stock Units underlying shares to be sold

Key Terms

Rule 144, Restricted Stock Units, securities to be sold

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Common | 08/15/2026 | Restricted Stock Units | Issuer"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

securities to be sold financial

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

FAQ

What insider transaction did Fastly, Inc. (FSLY) report for Richard Wong?

Fastly, Inc. reported that officer Richard Wong filed a Rule 144 notice to sell up to 47,676 shares of Fastly common stock, to be executed through Morgan Stanley Smith Barney LLC under an indicated aggregate market value of $1,082,721.96.

How many Fastly (FSLY) shares did Richard Wong sell in the last 3 months?

Richard Wong reported selling 148,015 shares of Fastly common stock on 08/18/2026 for total proceeds of $4,234,709.15, in addition to the new proposed Rule 144 sale of up to 47,676 shares.

What is the size of Fastly (FSLY) proposed Rule 144 sale versus shares outstanding?

The proposed Rule 144 sale covers up to 47,676 shares of Fastly common stock. Fastly reports 159,300,000 shares of common stock outstanding, providing a baseline figure separate from the shares covered by this notice.

What type of Fastly (FSLY) securities is Richard Wong selling under Rule 144?

The notice states that the securities to be sold are Fastly common stock, related to Restricted Stock Units acquired from the issuer on 08/15/2026, with up to 47,676 shares covered by the proposed Rule 144 sale.

Which broker is handling Richard Wong’s Rule 144 sale of Fastly (FSLY) stock?

The proposed sale of Fastly common stock by Richard Wong under Rule 144 is to be executed through Morgan Stanley Smith Barney LLC, Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.

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

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Available on EDGAR 08/21/2026 - 04:36 PM Accepted by SEC EDGAR 08/21/2026 - 04:35 PM Learn about SEC filing dates

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	0002082904
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Fastly, Inc.
SEC File Number	001-38897
Address of Issuer	475 Brannan Street, Suite 300 San Francisco CALIFORNIA 94107
Phone	8444327859
Name of Person for Whose Account the Securities are To Be Sold	RICHARD WONG
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	Officer

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	47676	1082721.96	159300000	08/21/2026	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	08/15/2026	Restricted Stock Units	Issuer			47676	08/15/2026	N/A

* 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
RICHARD WONG 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/18/2026	148015	4234709.15

144: Remarks and Signature

Remarks
Date of Notice	08/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/22/2026
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	/s/ Richard Wong
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)