Notice of Proposed Sale · 144

Fastly, Inc.

FSLYNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Jul 10, 2026Accepted Jul 10, 2026, 1:38 PM EDTFiling CIK 2074428Accession 0001517413-26-000201

View company →Permanent SEC source ↗

Structured filing — 144

primary_doc.xml

Open full document ↗

Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: Fastly, Inc.
Issuer CIK: 0001517413
Phone: 8444327859
Person for whose account securities are to be sold: Charles L. Compton III
Relationships to issuer: Director · Officer
Street: 475 Brannan Street
Street (continued): Suite 300
City: San Francisco
State / country code: CA
Postal code: 94107

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
COMMON	11,344	210,885	159,073,910	07/16/2026	Nasdaq	E*TRADE SECURITIES LLC.

Broker / market maker — proposed row 1, entry 1

Name: E*TRADE SECURITIES LLC.
Street: 4005 Windward Plaza Dr.
City: Alpharetta
State / country code: GA
Postal code: 30005

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
COMMON	07/15/2026	RESTRICTED	FASTLY, INC.	11,344	N	07/15/2026	N/A

Sales reported in the preceding three months

Sales reported in the preceding three months · 10 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
Charles L. Compton III	Class A Common Stock	04/16/2026	11,042	276,050
Charles L. Compton III	Class A Common Stock	04/16/2026	11,432	270,824.08
Charles L. Compton III	Class A Common Stock	04/17/2026	6,659	163,278.68
Charles L. Compton III	Class A Common Stock	04/17/2026	400	10,160
Charles L. Compton III	Class A Common Stock	05/18/2026	34,334	578,527.9
Charles L. Compton III	Class A Common Stock	05/19/2026	11,275	185,812
Charles L. Compton III	Class A Common Stock	05/29/2026	15,028	254,874.88
Charles L. Compton III	Class A Common Stock	06/03/2026	3,482	70,231.94
Charles L. Compton III	Class A Common Stock	06/03/2026	5,746	121,527.9
Charles L. Compton III	Class A Common Stock	06/03/2026	85	1,857.25

Seller — prior-sale row 1, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 2, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 3, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 4, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 5, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 6, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 7, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 8, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 9, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Seller — prior-sale row 10, entry 1

Name: Charles L. Compton III
Street: 475 Brannan Street, Suite 300
City: San Franicsco
State / country code: CA
Postal code: 94107

Prior-sale reporting

Nothing to report for the preceding three months: N

Notice signature

Notice date: 07/10/2026
Signed: /s/ Tara Seracka, Attorney-in-Fact for Charles L. Compton III

Company context

Fastly’s powerful and programmable edge cloud platform helps the world’s top brands deliver online experiences that are fast, safe, and engaging through edge compute, delivery, security, and observability offerings that improve site performance, enhance security, and empower innovation at global scale. Compared to other providers, Fastly’s powerful, high-performance, and modern platform architecture empowers developers to deliver secure websites and apps with rapid time-to-market and demonstrated, industry-leading cost savings. Organizations around the world trust Fastly to help them upgrade the internet experience, including Reddit, Universal Music Group, and SeatGeek. Learn more about Fastly at https://www.fastly.com, and follow us @fastly.

Current securities

FSLYNASDAQ · EQUITY · Current

Get the free weekly BCS email.