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SEC Form 4 research

XENOPORT INC insider transactions

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

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

Issuer CIK
0001130591
Reporting owners
31
Officers and directors
15
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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.

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 · 0 rows, 7 columns

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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

Show the table · 17 rows, 3 columns

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Harris William G0001322961259
FENTON DENNIS M000118462748
WIERENGA WENDALL000123594567
ROBERTS BRYAN E000123924255
Barrett Ronald W00013263301,004
FRIEDMAN CATHY00014118749
BERNS PAUL L000120276986
BATES GREGORY T00015512454
Bosko Gianna M00015000434
Cundy Kenneth C0001322959662
Dower William J00013236681
Freund John Gordon000129677195
Gallop Mark A0001322960991
MARIO ERNEST0001180469258
NUSSBACHER KENNETH J000121662930
RIEFLIN WILLIAM JL00011824719
Savello David R000139059044
Harris William G ↗FENTON DENNIS M ↗WIERENGA WENDALL ↗ROBERTS BRYAN E ↗Barrett Ronald W ↗FRIEDMAN CATHY ↗BERNS PAUL L ↗BATES GREGORY T ↗Bosko Gianna M ↗Cundy Kenneth C ↗Dower William J ↗Freund John Gordon ↗Gallop Mark A ↗MARIO ERNEST ↗NUSSBACHER KENNETH J ↗RIEFLIN WILLIAM JL ↗Savello David R ↗

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.