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SEC Form 4 research

BIO-RAD LABORATORIES, INC. insider transactions

Inspect BIO-RAD LABORATORIES, INC.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

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

Issuer CIK
0000012208
Reporting owners
44
Officers and directors
22
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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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2026-09-092026-09-04Allison SchwartzA719$0Not reported

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

The displayed observation date is 2026-09-04 and its public availability date is 2026-09-09. Subtracting those calendar dates gives 5 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 A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

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 0001924980-26-000004 ↗SEC accession 0002022345-26-000004 ↗SEC accession 0001993147-26-000002 ↗

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 · 9 rows, 7 columns

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2026-09-092026-09-04Allison SchwartzA719$0Not reported
2026-09-092026-09-04BARRY JAMESA4,313$0Not reported
2026-09-092026-09-04EVRAN SEDATA4,026$0Not reported
2026-09-092026-09-04ENGELHARDT EVA ANETTEA4,313$0Not reported
2026-09-092026-09-04DiVincenzo Jonathan P.A6,326$0Not reported
2026-09-092026-09-04ENLOE COURTNEY CA2,876$0Not reported
2026-09-092026-09-04Mehta RajatA4,601$0Not reported
2026-09-092026-09-04Lakkaraju Roop KalyanA6,326$0Not reported
2026-09-092026-09-04SCHWARTZ NORMAN DA17,251$0Not 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 24 displayed rows: Officers and directors in the directory

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CRUTCHFIELD BRADFORD0001246406160
ERNST TIMOTHY S000167629117
Hall Shannon000162122211
TSINGOS CHRISTINE A000127886128
Crowley Michael000162938125
Last Andrew J.000148508813
TUMOLO ANNETTE000171799612
BARRY JAMES00020223452
BENNETT JAMES00012480802
Daskal Ilan0001446964103
ENGELHARDT EVA ANETTE00020249111
GOETZ JOHN000123794511
HERTIA JOHN000161600317
HILLMAN AL00012480861
Hinckley Greg K000123918221
HUTTON RONALD W000124807328
Magni Giovanni000129281637
RAMALINGAM AJIT00018078916
SCHWARTZ ALICE N00012480763
SCHWARTZ NORMAN D00009408054
SODERBERG SHAWN MARIE000159185182
STARK JAMES R000124808331
WADLER SANFORD000124807831
WRIGHT DARA00017969801
CRUTCHFIELD BRADFORD ↗ERNST TIMOTHY S ↗Hall Shannon ↗TSINGOS CHRISTINE A ↗Crowley Michael ↗Last Andrew J. ↗TUMOLO ANNETTE ↗BARRY JAMES ↗BENNETT JAMES ↗Daskal Ilan ↗ENGELHARDT EVA ANETTE ↗GOETZ JOHN ↗HERTIA JOHN ↗HILLMAN AL ↗Hinckley Greg K ↗HUTTON RONALD W ↗Magni Giovanni ↗RAMALINGAM AJIT ↗SCHWARTZ ALICE N ↗SCHWARTZ NORMAN D ↗SODERBERG SHAWN MARIE ↗STARK JAMES R ↗WADLER SANFORD ↗WRIGHT DARA ↗

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.