Ameriprise Financial (PINS) reports 10.2% Pinterest stake via Columbia funds

Rhea-AI Filing Summary

Ameriprise Financial, Inc., through its subsidiary Columbia Management Investment Advisers and related funds, reports significant beneficial ownership of Pinterest, Inc. Class A common stock. Ameriprise is deemed to beneficially own 49,014,540 shares, representing 10.2% of the class, with shared voting and dispositive power over these shares. Columbia Management Investment Advisers is deemed to beneficially own 45,788,810 shares, or 9.5% of the class, largely held for client funds and accounts. Columbia Seligman Technology and Information Fund directly holds 29,189,261 shares, or 6.1% of the class, with sole voting power. The reporting parties state that other CMIA-managed funds and accounts each hold less than 5% of Pinterest’s outstanding shares as of July 31, 2026, and AFI and CMIA disclaim beneficial ownership beyond their attributed advisory roles.

Key Figures

AFI beneficial ownership: 49,014,540 shares AFI percent of class: 10.2 % CMIA beneficial ownership: 45,788,810 shares +5 more

8 metrics

AFI beneficial ownership 49,014,540 shares Ameriprise Financial, Inc. beneficially owned Pinterest Class A shares as of July 31, 2026

AFI percent of class 10.2 % Percentage of Pinterest Class A common stock beneficially owned by Ameriprise Financial, Inc.

CMIA beneficial ownership 45,788,810 shares Pinterest Class A shares beneficially owned by Columbia Management Investment Advisers, LLC

CMIA percent of class 9.5 % Percentage of Pinterest Class A common stock beneficially owned by CMIA

Fund holdings 29,189,261 shares Pinterest Class A shares held by Columbia Seligman Technology and Information Fund

Fund percent of class 6.1 % Percentage of Pinterest Class A common stock held by Columbia Seligman Technology and Information Fund

AFI shared voting power 44,110,314 shares Shares of Pinterest over which Ameriprise reports shared voting power

CMIA shared voting power 44,049,964 shares Shares of Pinterest over which CMIA reports shared voting power

Key Terms

beneficial ownership, shared voting power, shared dispositive power, sole voting power, +1 more

5 terms

beneficial ownership financial

"CMIA may be deemed to beneficially own the shares reported herein by the Fund."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

shared voting power financial

"6 | Shared Voting Power 44,110,314.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"8 | Shared Dispositive Power 49,014,540.00"

sole voting power financial

"5 | Sole Voting Power 29,189,261.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Schedule 13G regulatory

"Each of AFI and CMIA...disclaims beneficial ownership of any shares reported on this Schedule."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

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FAQ

How much of Pinterest (PINS) stock does Ameriprise Financial report owning?

Ameriprise Financial is deemed to beneficially own 49,014,540 Pinterest Class A shares, representing 10.2% of the class. This stake is held through Columbia Management Investment Advisers and its managed funds and accounts, over which it reports shared voting and dispositive power.

What is Columbia Management Investment Advisers’ ownership in Pinterest (PINS)?

Columbia Management Investment Advisers reports beneficial ownership of 45,788,810 Pinterest Class A shares, or 9.5% of the class. These shares are held for various registered and unregistered investment companies and accounts that CMIA manages as investment adviser.

How many Pinterest (PINS) shares does Columbia Seligman Technology and Information Fund hold?

Columbia Seligman Technology and Information Fund directly owns 29,189,261 Pinterest Class A shares, representing 6.1% of the class. The fund has sole voting power and shared dispositive power over these shares as reported in the Schedule 13G filing.

Do other CMIA-managed funds each own more than 5% of Pinterest (PINS)?

No. The filing states that, as of July 31, 2026, only the Columbia Seligman Technology and Information Fund owned more than 5% of Pinterest’s class. Other CMIA-managed funds and accounts each hold less than 5% of the outstanding shares.

What voting and dispositive powers are reported over Pinterest (PINS) shares?

Ameriprise reports shared voting power over 44,110,314 shares and shared dispositive power over 49,014,540 shares. CMIA reports shared voting power over 44,049,964 shares and shared dispositive power over 45,788,810 shares, reflecting their advisory and control roles.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Pinterest, Inc.

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

72352L106

(CUSIP Number)

07/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 72352L106

1

Names of Reporting Persons

Ameriprise Financial, Inc.

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 44,110,314.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 49,014,540.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

49,014,540.00

10

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

11

Percent of class represented by amount in row (9)

10.2 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 72352L106

1

Names of Reporting Persons

Columbia Management Investment Advisers, LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MINNESOTA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 44,049,964.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 45,788,810.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

45,788,810.00

10

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

11

Percent of class represented by amount in row (9)

9.5 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 72352L106

1

Names of Reporting Persons

Columbia Seligman Technology and Information Fund

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 29,189,261.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 29,189,261.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

29,189,261.00

10

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

11

Percent of class represented by amount in row (9)

6.1 %

12

Type of Reporting Person (See Instructions)

IV

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Pinterest, Inc.
(b)	Address of issuer's principal executive offices: 651 Brannan Street, San Francisco, California 94107
Item 2.
(a)	Name of person filing: (a) Ameriprise Financial, Inc. ("AFI") (b) Columbia Management Investment Advisers, LLC ("CMIA") (c) Columbia Seligman Technology and Information Fund ("Fund")
(b)	Address or principal business office or, if none, residence: (a) 145 Ameriprise Financial Center, Minneapolis, MN 55474 (b) 290 Congress Street, Boston, MA 02210 (c) 290 Congress Street, Boston, MA 02210
(c)	Citizenship: (a) Delaware (b) Minnesota (c) Massachusetts
(d)	Title of class of securities: Class A Common Stock
(e)	CUSIP Number(s): 72352L106
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: Incorporated by reference to Items (5)-(9) and (11) of the cover page pertaining to each reporting person. CMIA and AFI do not directly own any shares of Common Stock of the issuer. As the investment adviser to the Fund and various other unregistered and registered investment companies and other managed accounts, CMIA may be deemed to beneficially own the shares reported herein by the Fund. Accordingly, the shares reported herein by CMIA include those shares separately reported herein by the Fund. As the parent holding company of CMIA, AFI may be deemed to beneficially own the shares reported herein by CMIA. Accordingly, the shares reported herein by AFI include those shares separately reported herein by CMIA. Each of AFI and CMIA, and the subsidiaries identified on the attached Exhibit I, disclaims beneficial ownership of any shares reported on this Schedule.
(b)	Percent of class: The information required by Item 4(b) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
	(ii) Shared power to vote or to direct the vote: The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
	(iii) Sole power to dispose or to direct the disposition of: The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. To the knowledge of AFI, CMIA and the Fund, no other persons besides AFI, CMIA and the Fund and those persons for whose shares of common stock CMIA and AFI report beneficial ownership have the right to receive or the power to direct the receipt of dividends from or the proceeds from the sale of the securities of the issuer reported herein. As of July 31, 2026, only the Fund owned more than 5% of the class of securities reported herein. Any remaining shares reported herein by CMIA are held by various other funds or accounts managed by CMIA which each have the right to receive any dividends paid by the issuer and could terminate their respective investment advisory relationship with CMIA and then subsequently direct the use of proceeds from the sale of the common stock owned by such fund or account. To CMIA's knowledge, none of these other funds or accounts own more than 5% of the outstanding shares of the issuer as of July 31, 2026.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. AFI: See Exhibit I
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

Ameriprise Financial, Inc.

Signature:	/s/ Michael G. Clarke
Name/Title:	Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services
Date:	08/07/2026

Columbia Management Investment Advisers, LLC

Signature:	/s/ Michael G. Clarke
Name/Title:	Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services
Date:	08/07/2026

Columbia Seligman Technology and Information Fund

Signature:	/s/ Michael G. Clarke
Name/Title:	Michael G. Clarke, Senior Vice President & Chief Financial Officer
Date:	08/07/2026

Comments accompanying signature: Contact Information Charles Chiesa VP Fund Treasurer Global Operations and Investor Services Telephone: 617-385-9593

Exhibit Information

Exhibit Index Exhibit I Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company. Exhibit II Joint Filing Agreement