FormFactor (NASDAQ: FORM) director sells 1,000 shares in open market

Rhea-AI Filing Summary

FormFactor Inc. director Thomas St. Dennis reported an open-market sale of 1,000 shares of Common Stock on May 19, 2026 at a weighted average price of $115.8399 per share. After this transaction, he directly holds 31,873 shares of FormFactor common stock.

The sale price reflects trades executed between $115.80 and $115.84 per share, according to the filing footnote. The transaction represents a small portion of his remaining stake and is reported as a routine Form 4 insider sale.

Insider Trade Summary

Net Seller: 1,000 shares ($115,840)

Net Sell 1 txn

Insider St Dennis Thomas

Role null

Sold 1,000 shs ($116K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,000	$115.8399	$116K

Holdings After Transaction: Common Stock — 31,873 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 1,000 shares Weighted average sale price: $115.8399 per share Post-transaction holdings: 31,873 shares +1 more

4 metrics

Shares sold 1,000 shares Open-market sale on May 19, 2026

Weighted average sale price $115.8399 per share Common Stock transaction

Post-transaction holdings 31,873 shares Shares directly owned after sale

Price range of trades $115.80–$115.84 per share Individual executions within reported sale

Key Terms

open-market sale, weighted average sale price, Form 4, transaction code "S"

4 terms

open-market sale financial

"transaction_action: "open-market sale" for the Common Stock transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average sale price financial

"Price represents the weighted average sale price for the transaction reported."

Form 4 regulatory

"reported this insider transaction on Form 4 filed with the SEC"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

transaction code "S" regulatory

"transaction_code: "S" indicating a sale in open market or private transaction"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

St Dennis Thomas

(Last) (First) (Middle)

7005 SOUTHFRONT ROAD

(Street)

LIVERMORE CALIFORNIA 94551

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FORMFACTOR INC [ FORM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/19/2026		S		1,000	D	$115.8399(1)	31,873	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $115.80 through $115.84. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/: Stan Finkelstein, Attorney-in-fact for Thomas St. Dennis	05/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did FormFactor (FORM) report for Thomas St. Dennis?

FormFactor director Thomas St. Dennis reported selling 1,000 shares of Common Stock. The open-market sale occurred on May 19, 2026 and was disclosed on Form 4, which captures insider trading activity by company officers, directors, and certain large shareholders.

At what price did Thomas St. Dennis sell FormFactor (FORM) shares?

The shares were sold at a weighted average price of $115.8399 per share. A footnote explains individual trades were executed in a price range from $115.80 to $115.84, reflecting small variations across multiple sale executions that make up the reported transaction.

How many FormFactor (FORM) shares does Thomas St. Dennis hold after this sale?

After the reported sale, Thomas St. Dennis directly holds 31,873 shares of FormFactor Common Stock. This post-transaction holding is disclosed in the Form 4 and helps investors gauge the size of his remaining stake relative to the 1,000 shares sold.

Was the FormFactor (FORM) insider sale a market transaction or a private transfer?

The filing classifies the transaction as an open-market sale. The Form 4 uses transaction code “S” and describes it as a sale in open market or private transaction, with the footnote detailing weighted average pricing across multiple executions.

What does the weighted average sale price mean in the FormFactor (FORM) Form 4?

The weighted average price of $115.8399 reflects several trades combined into one reported transaction. The footnote notes that individual trades occurred between $115.80 and $115.84, and that detailed per-trade pricing is available upon request from the SEC staff or security holders.