Fastly director Compton proposes $218K share sale

Morgan Stanley Smith Barney LLC is named as broker, and NASDAQ is listed as the exchange for the proposed sale.

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) director and officer Charles L. Compton III gave notice of a proposed sale of 8,941 common shares, with an aggregate market value of $218,249.81 and an approximate sale date of October 26, 2026. The shares were acquired upon vesting of restricted stock units from October 15, 2025 through October 15, 2026.

The sales table for the prior three months includes a September 1, 2026 sale of 55,579 shares for gross proceeds of $1,188,669.26 and a September 14, 2026 sale of 50,392 shares for gross proceeds of $1,256,399.81; both are identified as 10b5-1 sales. It also lists a 10b5-1 sale of 9,016 shares for $208,044.80 on October 19, 2026.

Key Figures

Proposed sale: 8,941 common shares Aggregate market value: $218,249.81 Shares sold: 55,579 shares +4 more

7 metrics

Proposed sale 8,941 common shares Approximate sale date October 26, 2026

Aggregate market value $218,249.81 Proposed sale

Shares sold 55,579 shares September 1, 2026; identified as a 10b5-1 sale

Gross proceeds $1,188,669.26 September 1, 2026 sale

Shares sold 50,392 shares September 14, 2026; identified as a 10b5-1 sale

Gross proceeds $1,256,399.81 September 14, 2026 sale

Shares sold 9,016 shares October 19, 2026; identified as a 10b5-1 sale

Key Terms

restricted stock units, 10b5-1 Sales, Rule 144

3 terms

restricted stock units financial

"acquired upon the vesting of restricted stock units"

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.

10b5-1 Sales regulatory

"10b5-1 Sales for CHARLES L COMPTON III"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Rule 144 regulatory

"sales required by paragraph (e) 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.

FAQ

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

How many FSLY shares did Charles L. Compton III propose to sell?

Charles L. Compton III gave notice of a proposed sale of 8,941 common shares, with an aggregate market value of $218,249.81 and an approximate sale date of October 26, 2026, through Morgan Stanley Smith Barney LLC.

What did Charles L. Compton III report selling on October 16, 2026?

The prior-three-month sales table lists 11,433 common shares sold on October 16, 2026, for gross proceeds of $284,677.13.

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

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Available on EDGAR 10/26/2026 - 04:28 PM EDT Accepted by SEC EDGAR 10/26/2026 - 04:28 PM EDT 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	0002074428
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	Charles L. Compton III
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	Director
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	8941	218249.81	159300000	10/26/2026	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	10/15/2025	Restricted Stock Units	Issuer			8941	10/15/2025	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
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	10/19/2026	9016	208044.80
CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	10/16/2026	11433	284677.13
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/14/2026	50392	1256399.81
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/08/2026	2436	51716.28
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/02/2026	9458	193111.93
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/01/2026	55579	1188669.26
CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/31/2026	15028	345644.00
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/19/2026	11198	276457.18
CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/18/2026	34552	988336.04
10b5-1 Sales for CHARLES L COMPTON III 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/04/2026	14868	371700.00

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 10/15/2025 through 10/15/2026.
Date of Notice	10/26/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/11/2026
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/ Charles L. Compton
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)