WSR · Insider Trading
Whitestone REIT
Every open-market purchase and sale reported by WSR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-15 | Julia Bruns Buthman | Director | D | −31,577 | −$599.96K |
| 2026-07-15 | Jeffrey Alan Jones | Director | D | −45,728 | −$868.83K |
| 2026-07-15 | Peter Tropoli | General Counsel & Secretary | MIXED | −179,465 | −$6.28M |
| 2026-07-15 | Christine J Mastandrea | President and COO | MIXED | −472,463 | −$13.66M |
| 2026-07-15 | John Scott Hogan | Chief Financial Officer | MIXED | −235,505 | −$7.51M |
| 2026-07-15 | Kristian M Gathright | Director | D | −15,789 | −$299.99K |
| 2026-07-15 | Amy Shih-Hua Feng | Director | D | −69,507 | −$1.32M |
| 2026-07-15 | Donald A Miller | Director | D | −33,694 | −$640.19K |
| 2026-07-15 | Soklin Siv | VP of Human Resources | MIXED | −103,416 | −$3.19M |
| 2026-07-15 | David K Holeman | Chief Executive Officer | MIXED | −818,165 | −$22.12M |
| 2026-07-02 | David K Holeman | Chief Executive Officer | F | −13,229 | −$250.82K |
| 2026-07-02 | Peter Tropoli | General Counsel & Secretary | F | −4,305 | −$81.62K |
| 2026-07-02 | John Scott Hogan | Chief Financial Officer | F | −6,684 | −$126.73K |
| 2026-07-02 | Soklin Siv | VP of Human Resources | F | −2,324 | −$44.06K |
| 2026-07-02 | Christine J Mastandrea | President and COO | F | −8,991 | −$170.47K |
| 2026-04-06 | Soklin Siv | VP of Human Resources | A | +6,996 | — |
| 2026-04-06 | Christine J Mastandrea | President and COO | A | +18,525 | — |
| 2026-04-06 | Peter Tropoli | General Counsel & Secretary | A | +13,435 | — |
| 2026-04-06 | John Scott Hogan | Chief Financial Officer | A | +14,019 | — |
| 2026-04-06 | David K Holeman | Chief Executive Officer | A | +24,032 | — |
| 2026-01-06 | Peter Tropoli | General Counsel & Secretary | MIXED | +22,859 | −$214.67K |
| 2026-01-06 | John Scott Hogan | Chief Financial Officer | MIXED | +22,785 | −$215.70K |
| 2026-01-06 | Soklin Siv | VP of Human Resources | MIXED | +17,563 | −$90.58K |
| 2026-01-06 | Christine J Mastandrea | President and COO | A | +51,998 | — |
| 2026-01-06 | David K Holeman | Chief Executive Officer | MIXED | +52,495 | −$487.28K |
| 2025-12-29 | Kristian M Gathright | Director | A | +12,286 | +$168.32K |
| 2025-12-29 | Amy Shih-Hua Feng | Director | A | +15,282 | +$209.36K |
| 2025-12-29 | Julia Bruns Buthman | Director | A | +12,660 | +$173.44K |
| 2025-12-29 | Donald A Miller | Director | A | +11,986 | +$164.21K |
| 2025-12-29 | Jeffrey Alan Jones | Director | A | +6,368 | +$87.24K |
| 2025-07-02 | Christine J Mastandrea | Chief Operating Officer | MIXED | +16,853 | −$80.75K |
| 2025-07-02 | John Scott Hogan | Chief Financial Officer | MIXED | +11,620 | −$76.80K |
| 2025-07-02 | Soklin Siv | VP of Human Resources | MIXED | +4,313 | −$55.75K |
| 2025-07-02 | Peter Tropoli | General Counsel & Secretary | MIXED | +10,726 | −$75.40K |
| 2025-07-02 | David K Holeman | Chief Executive Officer | MIXED | +17,336 | −$160.56K |
| 2025-05-30 | Donald A Miller | Director | Buy | +5,000 | +$61.75K |
| 2025-05-05 | Donald A Miller | Director | Buy | +15,000 | +$192.05K |
| 2025-03-25 | Kristian M Gathright | Director | Buy | +1,750 | +$25.13K |
| 2025-03-21 | Amy Shih-Hua Feng | Director | Buy | +875 | +$12.53K |
| 2025-01-03 | Christine J Mastandrea | Chief Operating Officer | MIXED | +18,823 | −$152.14K |
| 2025-01-03 | Soklin Siv | VP of Human Resources | MIXED | +11,326 | −$78.87K |
| 2025-01-03 | Peter Tropoli | General Counsel & Secretary | MIXED | +14,773 | −$149.71K |
| 2025-01-03 | David K Holeman | Chief Executive Officer | MIXED | +32,961 | −$310.85K |
| 2025-01-03 | John Scott Hogan | Chief Financial Officer | MIXED | +14,769 | −$149.76K |
| 2024-12-26 | Jeffrey Alan Jones | Director | A | +5,831 | +$82.51K |
| 2024-12-26 | Kristian M Gathright | Director | A | +1,753 | +$24.80K |
| 2024-12-26 | Donald A Miller | Director | A | +1,708 | +$24.17K |
| 2024-12-26 | Julia Bruns Buthman | Director | A | +10,824 | +$153.16K |
| 2024-12-26 | Amy Shih-Hua Feng | Director | A | +12,784 | +$180.89K |
| 2024-09-05 | Julia Bruns Buthman | Director | Buy | +5,000 | +$64.95K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| David K Holeman | Chief Executive Officer | 1,164,103 | $22.11M |
| Christine J Mastandrea | President and COO | 845,304 | $16.05M |
| Soklin Siv | VP of Human Resources | 168,104 | $3.19M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the WSR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.