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SEC Form 4 research

SIRF TECHNOLOGY HOLDINGS INC insider transactions

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

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

Issuer CIK
0001163943
Reporting owners
25
Officers and directors
11
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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.

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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 · 12 rows, 3 columns

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AMARAL WALTER000127596251
BANATAO DIOSDADO P0001134607142
BASIJI JAMSHID000128810440
BEGUWALA MOIZ000121570721
CANNING MICHAEL0001276336103
CHADHA KANWAR0001275963177
Lau Philip00014347115
LAVALLE JOSEPH000128754313
Quigley John00014348501
SHINGAL ATUL000128754521
SMAHA JAMES00012759613
SRINIVASAN SAM000128703920
AMARAL WALTER ↗BANATAO DIOSDADO P ↗BASIJI JAMSHID ↗BEGUWALA MOIZ ↗CANNING MICHAEL ↗CHADHA KANWAR ↗Lau Philip ↗LAVALLE JOSEPH ↗Quigley John ↗SHINGAL ATUL ↗SMAHA JAMES ↗SRINIVASAN SAM ↗

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.