Earnest Partners reports 6.3% stake in FormFactor

FormFactor Inc. ownership filing: an amendment to a Schedule 13G reports that EARNEST PARTNERS LLC beneficially owns 4,875,165 shares of FormFactor common stock, representing 6.3% of the class as reported.

Accepted by SEC EDGAR 05/15/2026 - 03:28 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

FormFactor Inc. ownership filing: an amendment to a Schedule 13G reports that EARNEST PARTNERS LLC beneficially owns 4,875,165 shares of FormFactor common stock, representing 6.3% of the class as reported. The filing shows 3,345,634 shares with sole voting power and 763,234 shares with shared voting power. The statement is made by Earnest Partners as an investment adviser; the signature on the amendment is dated 05/13/2026.

Insights

Institutional Ownership Analyst

Earnest Partners reports a 6.3% stake in FormFactor.

The filing lists 4,875,165 shares beneficially owned with voting and dispositive power broken out: 3,345,634 sole votes, 763,234 shared votes, and sole dispositive power over 4,875,165 shares. The report is an amendment to a Schedule 13G filed under passive/investment adviser rules.

Cash‑flow treatment and any intended disposition are not stated in the excerpt; subsequent filings would show transactions if the holder moves shares. The timing shown includes an effective reporting date of 03/31/2026 and a signature dated 05/13/2026.

Governance Specialist

Stake size triggers disclosure but not control status.

At 6.3% beneficial ownership, the holder is above the 5% reporting threshold but the filing describes Earnest Partners as an investment adviser with client accounts; no single client exceeds 5% per the statement. The filing does not assert control or a change in board representation.

Watch for any Form 13D or Form 4 filings that would indicate active engagement or personnel changes; none are included in this amendment.

Key Figures

Beneficial ownership: 4,875,165 shares Percent of class: 6.3% Sole voting power: 3,345,634 shares +1 more

4 metrics

Beneficial ownership 4,875,165 shares reported beneficially owned (Schedule 13G/A)

Percent of class 6.3% percent of common stock reported

Sole voting power 3,345,634 shares shares with sole power to vote

Shared voting power 763,234 shares shares with shared power to vote

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 6 to Schedule 13G filing (beneficial ownership disclosure)"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"Amount beneficially owned: 4,875,165.00 (b) Percent of class: 6.3%"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 4,875,165.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

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

What stake does Earnest Partners report in FormFactor (FORM)?

Earnest Partners reports beneficial ownership of 4,875,165 shares, equal to 6.3% of FormFactor's common stock as stated in the amendment.

How much voting power does Earnest Partners hold in FORM?

The filing lists 3,345,634 shares with sole voting power and 763,234 shares with shared voting power, per the ownership table.

Is Earnest Partners filing as an active or passive investor in FORM?

Earnest Partners states it is filing as an investment adviser under the Schedule 13G rules; the amendment does not assert active control or a solicitation intent.

Does the amendment indicate any planned sale or purchase of FORM shares?

The amendment does not disclose any planned purchases or sales; it reports beneficial ownership and voting/dispositive power only.

What dates are shown in the Earnest Partners amendment for FORM?

The excerpt shows a reporting reference date of 03/31/2026 and a signature date of 05/13/2026 on the amended Schedule 13G.

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

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

FORMFACTOR INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

346375108

(CUSIP Number)

03/31/2026

(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): 346375108

1

Names of Reporting Persons

EARNEST PARTNERS 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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,345,634.00
6	Shared Voting Power 763,234.00
7	Sole Dispositive Power 4,875,165.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,875,165.00

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)

6.3 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FORMFACTOR INC
(b)	Address of issuer's principal executive offices: 7005 SOUTHFRONT ROAD, LIVERMORE, CALIFORNIA, 94551.
Item 2.
(a)	Name of person filing: EARNEST Partners, LLC
(b)	Address or principal business office or, if none, residence: 1180 Peachtree Street NE, Suite 2300, Atlanta, Georgia 30309
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 346375108
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: 4,875,165.00
(b)	Percent of class: 6.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 3,345,634.00
	(ii) Shared power to vote or to direct the vote: 763,234.00
	(iii) Sole power to dispose or to direct the disposition of: 4,875,165.00
	(iv) Shared power to dispose or to direct the disposition of: 0
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. EARNEST Partners, LLC is filing as an investment adviser in accordance with 240.13d-1(b)(1)(ii)(E). No client interest relates to more than five percent of the class.
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:

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.

EARNEST PARTNERS LLC

Signature:	James M. Wilson
Name/Title:	Chief Compliance Officer
Date:	05/13/2026