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SEC Form 4 research

EXPONENT INC insider transactions

Inspect EXPONENT INC's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0000851520
Reporting owners
39
Officers and directors
27
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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

Show the table · 1 row, 7 columns

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2026-09-222026-09-18Souri Shukri JeriesP184$68.45Not reported

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

The displayed observation date is 2026-09-18 and its public availability date is 2026-09-22. Subtracting those calendar dates gives 4 days 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 P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

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 0000851520-26-000101 ↗SEC accession 0000851520-26-000096 ↗SEC accession 0000851520-26-000092 ↗

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.

Show the table · 3 rows, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-222026-09-18Souri Shukri JeriesP184$68.45Not reported
2026-08-192026-08-17Corrigan CatherineS1,707$66.28Not reported
2026-07-182026-07-15Corrigan CatherineS1,737$62.78Not 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 30 displayed rows: Officers and directors in the directory

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CRANSTON MARY B000110426870
Reiss Richard000163307810
Kytomaa Harri000168717424
JOHNSTON PAUL R0001193221174
Rakow Joseph00019722954
James Bradley A000179970913
Brown George H.00018301381
Shepard Sally00016612324
Reitman Maureen T. F.000179999111
Lindstrom Carol000167740021
Anderson Elizabeth L00013658345
ARMACOST SAMUEL H000119489912
Boehm Paul000135454618
CALIGIURI ROBERT D000119322238
Corrigan Catherine000155221335
DENEND LESLIE G000107334116
GAULKE MICHAEL R0001195045264
Guyer Eric00019724773
KATZENBACH JON R00012012931
MALLADI SUBBAIAH V000090104417
MCCARTHY ROGER L000092305214
MOALLI JOHN E000120129512
Murray Steven J00016308289
Osteraas John000135866513
Pye John00016869979
RIGGINS STEPHEN C000124383615
Sala Joseph00020469382
SCHLENKER RICHARD L JR000120330674
Souri Shukri Jeries00021544781
Zumwalt Debra000160916940
CRANSTON MARY B ↗Reiss Richard ↗Kytomaa Harri ↗JOHNSTON PAUL R ↗Rakow Joseph ↗James Bradley A ↗Brown George H. ↗Shepard Sally ↗Reitman Maureen T. F. ↗Lindstrom Carol ↗Anderson Elizabeth L ↗ARMACOST SAMUEL H ↗Boehm Paul ↗CALIGIURI ROBERT D ↗Corrigan Catherine ↗DENEND LESLIE G ↗GAULKE MICHAEL R ↗Guyer Eric ↗KATZENBACH JON R ↗MALLADI SUBBAIAH V ↗MCCARTHY ROGER L ↗MOALLI JOHN E ↗Murray Steven J ↗Osteraas John ↗Pye John ↗RIGGINS STEPHEN C ↗Sala Joseph ↗SCHLENKER RICHARD L JR ↗Souri Shukri Jeries ↗Zumwalt Debra ↗

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.