SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

Per Artur Bergman

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

SWEDEN

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 7,111,164.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 7,111,164.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

7,111,164.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

4.69 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: Consists of (i) 2,225,372 shares of Class A common stock held by Mr. Bergman, (ii) 2,500,558 shares of Class A common stock held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary, (iii) 840,005 shares of Class A common stock held by The Artur Bergman Remainder Trust One DTD 5/2/2019, of which the reporting person is the investment advisor, (iv) 109,686 shares of Class A common stock held by The Artur Bergman Remainder Trust Three DTD 5/2/2019, of which the reporting person is the investment advisor, (v) 50,481 shares of Class A common stock held by The Per Artur Bergman Grantor Retained Annuity Trust No. 3, of which the reporting person is trustee, (vi) 792,998 shares of Class A common stock held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee, (vii) 156,521 shares of Class A common stock held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor, (viii) 59,083 shares of Class A common stock issuable upon the vesting of restricted stock units within 60 days of December 31, 2025 and (ix) options to purchase 376,460 shares of Class A common stock, which are exercisable within 60 days of December 31, 2025. The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The Per Artur Bergman Revocable Trust

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,500,558.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,500,558.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

2,500,558.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

1.65 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The Artur Bergman Remainder Trust One DTD 5/2/2019

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 840,005.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 840,005.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

840,005.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

0.55 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The Artur Bergman Remainder Trust Three DTD 5/2/2019

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 109,686.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 109,686.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

109,686.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

0.07 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The Per Artur Bergman Grantor Retained Annuity Trust No. 3

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 50,481.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 50,481.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

50,481.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

0.03 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The Per Artur Bergman Grantor Retained Annuity Trust No. 4

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 792,998.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 792,998.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

792,998.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

0.52 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

CUSIP No.

31188V100

Names of Reporting Persons

The PAB 2021 Remainder Trust

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 156,521.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 156,521.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

156,521.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

0.10 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percent of class was calculated based on 151,537,271 outstanding shares of Class A common stock as of December 31, 2025.

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Fastly, Inc.

(b)

Address of issuer's principal executive offices:

475 Brannan Street, Suite 300, San Francisco, CA 94107

Item 2.

(a)

Name of person filing:

Per Artur Bergman The Per Artur Bergman Revocable Trust ("Revocable Trust") The Artur Bergman Remainder Trust One DTD 5/2/2019 ("Trust One") The Artur Bergman Remainder Trust Three DTD 5/2/2019 ("Trust Three") The Per Artur Bergman Grantor Retained Annuity Trust No. 3 ("Annuity Trust No. 3") The Per Artur Bergman Grantor Retained Annuity Trust No. 4 ("Annuity Trust No. 4") The PAB 2021 Remainder Trust ("Remainder Trust")

(b)

Address or principal business office or, if none, residence:

c/o Fastly, Inc. 475 Brannan Street Suite 300 San Francisco, CA 94107

(c)

Citizenship:

Per Artur Bergman - Sweden Revocable Trust - Colorado Trust One - Delaware Trust Three - Delaware Annuity Trust No. 3 - Colorado Annuity Trust No. 4 - Colorado Remainder Trust - Delaware

(d)

Title of class of securities:

Class A Common Stock, par value $0.00002 per share

(e)

CUSIP No.:

31188V100

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:

See response to Item 9 on each cover page.

(b)

Percent of class:

See response to Item 11 on each cover page.

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

See response to Item 5 on each cover page.

(ii) Shared power to vote or to direct the vote:

See response to Item 6 on each cover page.

(iii) Sole power to dispose or to direct the disposition of:

See response to Item 7 on each cover page.

(iv) Shared power to dispose or to direct the disposition of:

See response to Item 8 on each cover page.

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.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

Not Applicable

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

Not Applicable

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.

Per Artur Bergman

Signature:	/s/ Per Artur Bergman
Name/Title:	Per Artur Bergman
Date:	02/12/2026

The Per Artur Bergman Revocable Trust

Signature:	/s/ Artur Bergman
Name/Title:	Per Artur Bergman, Trustee
Date:	02/12/2026

The Artur Bergman Remainder Trust One DTD 5/2/2019

Signature:	/s/ Ron Templeton, Jr.
Name/Title:	Bryn Mawr Trust Company of Delaware, Trustee, Senior Trust Officer
Date:	02/12/2026

The Artur Bergman Remainder Trust Three DTD 5/2/2019

Signature:	/s/ Ron Templeton, Jr.
Name/Title:	Bryn Mawr Trust Company of Delaware, Trustee, Senior Trust Officer
Date:	02/12/2026

The Per Artur Bergman Grantor Retained Annuity Trust No. 3

Signature:	/s/ Artur Bergman
Name/Title:	Per Artur Bergman, Trustee
Date:	02/12/2026

The Per Artur Bergman Grantor Retained Annuity Trust No. 4

Signature:	/s/ Artur Bergman
Name/Title:	Per Artur Bergman, Trustee
Date:	02/12/2026

The PAB 2021 Remainder Trust

Signature:	/s/ Ron Templeton, Jr.
Name/Title:	Bryn Mawr Trust Company of Delaware, Trustee, Senior Trust Officer
Date:	02/12/2026