Company · CIK 0001175535 · SIC 6798 — Real Estate Investment Trusts · NYSE
Whitestone REIT · WSR
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 14, 2026 ADForm 4 → | Jul 15, 4:11 pm EDT | David K HolemanChief Executive Officer, Director | 1,510,041 | $19.00 | $22,117,957 | 0 | — | |
| Jul 14, 2026 DForm 4 → | Jul 15, 4:10 pm EDT | Julia Bruns ButhmanDirector | 31,577 | $19.00 | $599,963 | 0 | — | |
| Jul 14, 2026 ADForm 4 → | Jul 15, 4:10 pm EDT | Peter TropoliGeneral Counsel & Secretary | 481,713 | $19.00 | $6,281,191 | 0 | — | |
| Jul 14, 2026 ADForm 4 → | Jul 15, 4:10 pm EDT | Christine J MastandreaPresident and COO | 965,283 | $19.00 | $13,658,587 | 0 | — | |
| Jul 14, 2026 DForm 4 → | Jul 15, 4:10 pm EDT | Amy Shih-Hua FengDirector | 69,507 | $19.00 | $1,320,633 | 0 | — | |
| Jul 14, 2026 ADForm 4 → | Jul 15, 4:10 pm EDT | Soklin SivVP of Human Resources | 232,792 | $19.00 | $3,193,976 | 0 | — | |
| Jul 14, 2026 DForm 4 → | Jul 15, 4:10 pm EDT | Jeffrey Alan JonesDirector | 45,728 | $19.00 | $868,832 | 0 | — | |
| Jul 14, 2026 DForm 4 → | Jul 15, 4:10 pm EDT | Kristian M GathrightDirector | 15,789 | $19.00 | $299,991 | 0 | — | |
| Jul 14, 2026 DForm 4 → | Jul 15, 4:10 pm EDT | Donald A MillerDirector | 33,694 | $19.00 | $640,186 | 0 | — | |
| Jul 14, 2026 ADForm 4 → | Jul 15, 4:10 pm EDT | John Scott HoganChief Financial Officer | 554,585 | $19.00 | $7,505,855 | 0 | — | |
| Jun 30, 2026 FForm 4 → | Jul 2, 6:52 pm EDT | David K HolemanChief Executive Officer, Director | 13,229 | $18.96 | $250,822 | 818,165 | — | |
| Jun 30, 2026 FForm 4 → | Jul 2, 6:49 pm EDT | John Scott HoganChief Financial Officer | 6,684 | $18.96 | $126,729 | 235,505 | — | |
| Jun 30, 2026 FForm 4 → | Jul 2, 6:45 pm EDT | Christine J MastandreaPresident and COO | 8,991 | $18.96 | $170,469 | 472,463 | — | |
| Jun 30, 2026 FForm 4 → | Jul 2, 6:41 pm EDT | Peter TropoliGeneral Counsel & Secretary | 4,305 | $18.96 | $81,623 | 179,465 | — | |
| Jun 30, 2026 FForm 4 → | Jul 2, 6:32 pm EDT | Soklin SivVP of Human Resources | 2,324 | $18.96 | $44,063 | 103,416 | — | |
| Dec 31, 2018 JForm 4 → | Jan 2, 2019, 5:14 pm EST | James C MastandreaCHAIRMAN & CEO, Director | 6,665 | $12.26 | $81,713 | 923,177 | — | plan? |
| Dec 31, 2018 FJForm 4 → | Jan 2, 2019, 5:05 pm EST | David K HolemanCHIEF FINANCIAL OFFICER | 11,442 | $12.26 | $140,279 | 386,302 | — | plan? |
| Dec 31, 2018 FJForm 4 → | Jan 2, 2019, 5:04 pm EST | John J DeeCOO & SECRETARY | 7,617 | $12.26 | $93,384 | 159,423 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:14 pm EST | David F. TaylorDirector | 3,000 | — | — | 5,375 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:08 pm EST | Jack L MahaffeyDirector | 3,000 | — | — | 50,170 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:07 pm EST | Paul T LambertDirector | 3,000 | — | — | 60,674 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:06 pm EST | Najeeb A KhanDirector | 4,932 | $12.42 | $23,995 | 13,934 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:05 pm EST | Donald F KeatingDirector | 3,000 | — | — | 40,269 | — | plan? |
| Dec 28, 2018 AForm 4 → | Jan 2, 2019, 5:03 pm EST | Nandita BerryDirector | 5,254 | $12.42 | $27,995 | 6,462 | — | plan? |
| Sep 30, 2018 FForm 4 → | Oct 1, 5:03 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 19,788 | $13.88 | $274,657 | 929,842 | — | plan? |
| Sep 30, 2018 FForm 4 → | Oct 1, 5:03 pm EDT | Bradford D JohnsonEVP ACQUISITIONS & ASSET MGMT | 4,049 | $13.88 | $56,200 | 182,670 | — | plan? |
| Sep 30, 2018 FForm 4 → | Oct 1, 5:02 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 8,942 | $13.88 | $124,115 | 397,744 | — | plan? |
| Sep 30, 2018 FForm 4 → | Oct 1, 5:02 pm EDT | John J DeeCOO & SECRETARY | 4,315 | $13.88 | $59,892 | 167,040 | — | plan? |
| Jun 30, 2018 FForm 4 → | Jul 3, 6:08 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 19,788 | $12.48 | $246,954 | 949,630 | — | plan? |
| Jun 30, 2018 FForm 4 → | Jul 3, 6:07 pm EDT | Bradford D JohnsonEVP ACQUISITIONS & ASSET MGMT | 5,000 | $12.48 | $62,400 | 186,719 | — | plan? |
| Jun 30, 2018 FForm 4 → | Jul 3, 6:07 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 8,942 | $12.48 | $111,596 | 406,686 | — | plan? |
| Jun 30, 2018 FForm 4 → | Jul 3, 6:06 pm EDT | John J DeeCOO & SECRETARY | 3,884 | $12.48 | $48,472 | 171,355 | — | plan? |
| May 1, 2018 AForm 4 → | May 2, 5:26 pm EDT | Christine J MastandreaEVP CORPORATE STRATEGY | 231,367 | — | — | 969,418 | — | plan? |
| May 1, 2018 AForm 4 → | May 2, 5:26 pm EDT | Bradford D JohnsonEVP ACQUISITIONS & ASSET MGMT | 49,517 | — | — | 191,635 | — | plan? |
| May 1, 2018 AForm 4 → | May 2, 5:26 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 81,367 | — | — | 415,628 | — | plan? |
| May 1, 2018 AForm 4 → | May 2, 5:26 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 231,367 | — | — | 190,779 | — | plan? |
| May 1, 2018 AForm 4 → | May 2, 5:25 pm EDT | John J DeeCOO & SECRETARY | 30,350 | — | — | 175,239 | — | plan? |
| Mar 31, 2018 FForm 4 → | Apr 2, 4:27 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 19,788 | $10.39 | $205,597 | 790,501 | — | plan? |
| Mar 31, 2018 FForm 4 → | Apr 2, 4:26 pm EDT | Bradford D JohnsonEVP ACQUISITIONS & ASSET MGMT | 3,845 | $10.39 | $39,950 | 142,118 | — | plan? |
| Mar 31, 2018 FForm 4 → | Apr 2, 4:26 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 8,938 | $10.39 | $92,866 | 334,261 | — | plan? |
| Mar 31, 2018 FForm 4 → | Apr 2, 4:25 pm EDT | John J DeeCOO & SECRETARY | 3,997 | $10.39 | $41,529 | 144,889 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 20, 4:51 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 140,732 | — | — | 138,329 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 20, 4:51 pm EDT | Bradford D JohnsonEVP ACQUISITIONS & ASSET MGMT | 26,316 | — | — | 145,963 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 20, 4:50 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 54,348 | — | — | 343,199 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 20, 4:49 pm EDT | John J DeeCOO & SECRETARY | 24,314 | — | — | 148,886 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 20, 4:49 pm EDT | Christine J MastandreaEVP CORPORATE STRATEGY | 140,732 | — | — | 810,289 | — | plan? |
| Mar 5, 2018 PForm 4 → | Mar 5, 6:55 pm EST | James C MastandreaCHAIRMAN & CEO, Director | 2,500 | $10.65 | $26,625 | 695,873 | +0.36% | plan? |
| Mar 5, 2018 PForm 4 → | Mar 5, 6:54 pm EST | Christine J MastandreaVP CORPORATE STRATEGY | 2,500 | $10.65 | $26,625 | 695,873 | +0.36% | plan? |
| Dec 31, 2017 FForm 4 → | Jan 2, 2018, 5:26 pm EST | James C MastandreaCHAIRMAN & CEO, Director | 46,086 | $14.41 | $664,099 | 112,013 | — | plan? |
| Dec 31, 2017 FForm 4 → | Jan 2, 2018, 5:26 pm EST | Christine J MastandreaVP CORPORATE STRATEGY | 46,086 | $14.41 | $664,099 | 693,373 | — | plan? |
| Dec 31, 2017 FForm 4 → | Jan 2, 2018, 5:26 pm EST | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 5,427 | $14.41 | $78,203 | 119,647 | — | plan? |
| Dec 31, 2017 FForm 4 → | Jan 2, 2018, 5:25 pm EST | David K HolemanCHIEF FINANCIAL OFFICER | 19,506 | $14.41 | $281,081 | 288,851 | — | plan? |
| Dec 31, 2017 FForm 4 → | Jan 2, 2018, 5:25 pm EST | John J DeeCOO & SECRETARY | 4,766 | $14.41 | $68,678 | 124,572 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:04 pm EST | David F. TaylorDirector | 2,375 | — | — | 2,375 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:04 pm EST | Jack L MahaffeyDirector | 3,000 | — | — | 47,170 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:03 pm EST | Paul T LambertDirector | 4,556 | $14.46 | $22,500 | 57,674 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:03 pm EST | Donald F KeatingDirector | 3,000 | — | — | 37,269 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:02 pm EST | Nandita BerryDirector | 1,208 | $14.46 | $3,687 | 1,208 | — | plan? |
| Dec 12, 2017 AForm 4 → | Dec 13, 5:02 pm EST | Najeeb A KhanDirector | 1,462 | $14.46 | $7,360 | 9,002 | — | plan? |
| Sep 30, 2017 FForm 4 → | Oct 3, 5:29 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 19,506 | $13.05 | $254,553 | 308,357 | — | plan? |
| Sep 30, 2017 FForm 4 → | Oct 3, 5:29 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 43,086 | $13.05 | $562,272 | 736,459 | — | plan? |
| Sep 30, 2017 FForm 4 → | Oct 3, 5:28 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 5,427 | $13.05 | $70,822 | 125,074 | — | plan? |
| Sep 30, 2017 FForm 4 → | Oct 3, 5:27 pm EDT | John J DeeCOO & SECRETARY | 5,587 | $13.05 | $72,910 | 129,338 | — | plan? |
| Aug 29, 2017 PForm 4 → | Aug 29, 5:08 pm EDT | Paul T LambertDirector | 3,000 | $12.29 | $36,882 | 53,118 | +5.99% | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:55 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 48,872 | $12.24 | $598,193 | 115,013 | — | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:54 pm EDT | John J DeeCOO & SECRETARY | 3,881 | $12.24 | $47,503 | 134,925 | — | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:54 pm EDT | Christine J MastandreaVP CORPORATE STRATEGY | 48,872 | $12.24 | $598,193 | 779,545 | — | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:53 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 5,437 | $12.24 | $66,549 | 130,501 | — | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:53 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 19,506 | $12.24 | $238,753 | 327,863 | — | plan? |
| May 16, 2017 AForm 4 → | May 18, 8:51 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 47,100 | — | — | 135,938 | — | plan? |
| May 16, 2017 AForm 4 → | May 18, 8:51 pm EDT | Christine J MastandreaVP CORPORATE STRATEGY | 228,950 | — | — | 822,631 | — | plan? |
| May 16, 2017 AForm 4 → | May 18, 8:50 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 81,367 | — | — | 347,369 | — | plan? |
| May 16, 2017 AForm 4 → | May 18, 8:49 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 228,950 | — | — | 120,799 | — | plan? |
| May 16, 2017 AForm 4 → | May 18, 8:48 pm EDT | John J DeeCOO & SECRETARY | 27,850 | — | — | 138,806 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 3, 5:27 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 36,623 | $13.84 | $506,862 | 70,766 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 3, 5:26 pm EDT | Christine J MastandreaVP CORPORATE STRATEGY | 36,623 | $13.84 | $506,862 | 643,714 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 3, 5:26 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 3,614 | $13.84 | $50,018 | 88,838 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 3, 5:25 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 15,479 | $13.84 | $214,229 | 266,002 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 3, 5:25 pm EDT | John J DeeCOO & SECRETARY | 5,788 | $13.84 | $80,106 | 110,956 | — | plan? |
| Mar 7, 2017 PForm 4 → | Mar 8, 9:01 am EST | Paul T LambertDirector | 2,500 | $13.88 | $34,690 | 50,118 | +5.25% | plan? |
| Dec 31, 2016 FForm 4 → | Jan 3, 2017, 7:32 pm EST | David K HolemanCHIEF FINANCIAL OFFICER | 17,776 | $14.38 | $255,619 | 281,481 | — | plan? |
| Dec 31, 2016 FForm 4 → | Jan 3, 2017, 7:31 pm EST | Christine J MastandreaVP CORPORATE STRATEGY | 42,465 | $14.38 | $610,647 | 678,200 | — | plan? |
| Dec 31, 2016 FForm 4 → | Jan 3, 2017, 7:29 pm EST | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 2,565 | $14.38 | $36,885 | 92,452 | — | plan? |
| Dec 31, 2016 FForm 4 → | Jan 3, 2017, 7:27 pm EST | James C MastandreaCHAIRMAN & CEO, Director | 42,465 | $14.38 | $610,647 | 72,903 | — | plan? |
| Dec 31, 2016 FForm 4 → | Jan 3, 2017, 7:26 pm EST | John J DeeCOO & SECRETARY | 6,000 | $14.38 | $86,280 | 116,744 | — | plan? |
| Dec 21, 2016 AForm 4 → | Dec 21, 6:04 pm EST | Daryl J CarterDirector | 3,064 | $14.07 | $22,005 | 14,132 | — | plan? |
| Dec 21, 2016 AForm 4 → | Dec 21, 6:04 pm EST | Jack L MahaffeyDirector | 1,500 | — | — | 44,170 | — | plan? |
| Dec 21, 2016 AForm 4 → | Dec 21, 6:02 pm EST | Donald F KeatingDirector | 1,500 | — | — | 34,269 | — | plan? |
| Dec 21, 2016 AForm 4 → | Dec 21, 6:01 pm EST | Paul T LambertDirector | 3,064 | $14.07 | $22,005 | 47,618 | — | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:17 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 42,465 | $13.88 | $589,414 | 76,205 | — | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:17 pm EDT | Christine J MastandreaVP CORPORATE STRATEGY | 42,465 | $13.88 | $589,414 | 717,363 | — | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:16 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 4,000 | $13.88 | $55,520 | 95,017 | — | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:16 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 17,777 | $13.88 | $246,745 | 299,257 | — | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:15 pm EDT | John J DeeCOO & SECRETARY | 2,472 | $13.88 | $34,311 | 122,744 | — | plan? |
| Aug 19, 2016 PForm 4 → | Aug 22, 5:00 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 2,000 | $14.56 | $29,120 | 756,526 | +0.27% | plan? |
| Aug 19, 2016 PForm 4 → | Aug 22, 5:00 pm EDT | Christine J MastandreaVP CORPORATE STRATEGY | 2,000 | $14.56 | $29,120 | 756,526 | +0.27% | plan? |
| Aug 19, 2016 PForm 4 → | Aug 22, 5:00 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 300 | $14.55 | $4,365 | 317,034 | — | plan? |
| Aug 19, 2016 PForm 4 → | Aug 22, 5:00 pm EDT | David K HolemanCHIEF FINANCIAL OFFICER | 360 | $14.56 | $5,242 | 316,734 | +0.11% | plan? |
| Jun 30, 2016 FForm 4 → | Jul 1, 5:03 pm EDT | Bradford D JohnsonVP ACQUISITIONS & ASSET MGMT | 4,000 | $15.08 | $60,320 | 99,017 | — | plan? |
| Jun 30, 2016 AFForm 4 → | Jul 1, 5:03 pm EDT | James C MastandreaCHAIRMAN & CEO, Director | 262,465 | $15.08 | $640,372 | 79,507 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.