QUIDEL CORP /DE/ 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.

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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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

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BUECHLER KENNETH F	0001238916	24
POLAN MARY LAKE PH D	0001187716	18
Ferenczy William J.	0001812662	3
Russell Edward Keith	0001655234	6
Kroll Werner	0001609320	15
STEWARD RANDALL J	0001067586	8
BRYANT DOUGLAS C	0001406652	96
Abney Michael Donald Jr.	0001631320	9
BORKAR RATAN S	0001720077	19
Brown Thomas D	0001298084	18
Bujarski Robert Joseph	0001333458	27
Dammeyer Rodney F	0001077650	1,485
Foley Thomas James	0001307738	56
GIBSON KAREN	0001277462	17
LANDERS PAUL E	0001222785	30
Mason Caren L	0001301366	62
McLeod Scot M	0001405732	7
Michael Edward L.	0001391823	69
PAIZ MARK	0001222787	17
PULIDO MARK	0001219503	6
RADAK JOHN MATTHEW	0001216855	6
SCHULER JACK W	0001021412	849
SLACIK CHARLES P	0001204660	9
Strobeck Matthew	0001377832	63
TAMERIUS JOHN	0001222788	26
WATTLETON FAYE	0001014156	9

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.