FORMFACTOR INC insider transactions

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78. — In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

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2026-09-17	2026-09-16	SLESSOR MIKE	S	1,000	$105.8	Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-16 and its public availability date is 2026-09-17. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001628280-26-062602 ↗SEC accession 0001628280-26-062602 ↗SEC accession 0001628280-26-062602 ↗

Recent insider disclosures

Inspect all 13 displayed rows: Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

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2026-09-17	2026-09-16	SLESSOR MIKE	S	1,000	$105.8	Not reported
2026-09-17	2026-09-16	SLESSOR MIKE	S	7,773	$105.12	Not reported
2026-09-17	2026-09-16	SLESSOR MIKE	S	8,737	$104.26	Not reported
2026-09-05	2026-09-03	STEVEN-WAISS KELLEY	S	2,100	$96.1	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	686	$133.33	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	5,535	$132.5	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	1,125	$131.65	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	3,282	$130.54	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	2,892	$129.55	Not reported
2026-08-18	2026-08-14	SLESSOR MIKE	S	2,482	$128.72	Not reported
2026-08-11	2026-08-07	SLESSOR MIKE	A	141,792	$0	Not reported
2026-08-11	2026-08-06	SLESSOR MIKE	A	27,696	$0	Not reported
2026-08-11	2026-08-06	McKinnis Aric Brendan	A	6,924	$0	Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 28 displayed rows: Officers and directors in the directory

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Rhodes Sheri	0001718082	7
Shahar Shai	0001733068	15
LINK RAYMOND A	0001221193	64
MAIER LOTHAR	0001253573	7
St Dennis Thomas	0001339595	68
Obregon-Jimenez Rebeca	0001788948	6
BREWER KEVIN J	0001314431	47
BRONSON JOSEPH R	0001209040	31
CAMPBELL THOMAS J	0001257014	12
DeLateur Richard	0001492413	13
ELDRIDGE BENJAMIN N	0001256952	6
EVERETT G CARL JR	0001256957	6
FOSTER RONALD C	0001222896	427
HATSUKANO YOSHIKAZU	0001256955	2
KHANDROS IGOR Y	0001256946	119
LUDWIG MICHAEL M	0001256949	30
MATHEWS PETER B	0001256954	5
McKinnis Aric Brendan	0001660926	1
MERKADEAU STUART L	0001256951	80
PRESTRIDGE JAMES A	0001256961	6
ROGAS EDWARD JR	0001239379	10
SLESSOR MIKE	0001590177	126
STEVEN-WAISS KELLEY	0001498143	25
Titinger Jorge	0001385162	41
Vernet Jean B	0001431164	4
WAGNER HARVEY A	0001110789	17
WHITE BRIAN C	0001438029	30
ZELLNER MICHAEL W	0001181559	16

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.