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SEC Form 4 research

Whitestone REIT insider transactions

Inspect Whitestone REIT's public SEC insider acquisitions and sales, reporting owners and source receipts.

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

Issuer CIK
0001175535
Reporting owners
29
Officers and directors
16
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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 · 16 rows, 3 columns

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LAMBERT PAUL T000105657215
Feng Amy Shih-Hua00019415486
MAHAFFEY JACK L00012542843
Mastandrea Christine J00016035929
Jones Jeffrey Alan00018039932
Miller Donald A00013322498
GATHRIGHT KRISTIAN M000127483212
Buthman Julia Bruns00019744951
DEE JOHN J00012257067
DEVOS DANIEL G00012257055
Holeman David K00012963729
Keating Donald F00014382595
MASTANDREA JAMES C000122570424
Nixon Daniel E Jr00014380245
Rollnick Richard D.00015517071
Taylor David F.00017008431
LAMBERT PAUL T ↗Feng Amy Shih-Hua ↗MAHAFFEY JACK L ↗Mastandrea Christine J ↗Jones Jeffrey Alan ↗Miller Donald A ↗GATHRIGHT KRISTIAN M ↗Buthman Julia Bruns ↗DEE JOHN J ↗DEVOS DANIEL G ↗Holeman David K ↗Keating Donald F ↗MASTANDREA JAMES C ↗Nixon Daniel E Jr ↗Rollnick Richard D. ↗Taylor David F. ↗

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.

This issuer meets the currently published company-strategy eligibility rules.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.