Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

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US · SEC FORM 4

Whitestone REIT

WSR · — · CIK 0001175535 · Real Estate

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

20 Form 4 transaction lines observed in the same window
0 sales · 20 option, withholding, award, gift or other lines

Last qualifying purchase2025-05-28 · Miller Donald A · $61.8K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
TROPOLI PETERGeneral Counsel & Secretary
○○○
Holeman David KChief Executive Officer
○○○
Mastandrea Christine JPresident and COO
○○○
Siv SoklinVP of Human Resources
○○○
Hogan John ScottChief Financial Officer
○○○
Jones Jeffrey AlanDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-05-28 · Miller Donald A.

Recent Form 4 activity

0Purchases
0Sales
39Other Form 4 lines
30SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER20 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

The FINRA report lists no short interest for this ticker.

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-05-28Miller Donald APurchase (P)Common Shares5,000USD 12.35USD 61,750SEC filing ↗
2025-05-02Miller Donald APurchase (P)Common Shares15,000USD 12.80USD 192,050SEC filing ↗
2025-03-21GATHRIGHT KRISTIAN MPurchase (P)Common Shares1,750USD 14.36USD 25,130SEC filing ↗
2025-03-19Feng Amy Shih-HuaPurchase (P)Common Shares875USD 14.32USD 12,528SEC filing ↗
2024-09-04Buthman Julia BrunsPurchase (P)Common Shares5,000USD 12.99USD 64,950SEC filing ↗
2024-06-11Feng Amy Shih-HuaPurchase (P)Common Shares17,000USD 13.09USD 222,530SEC filing ↗
2024-06-03Feng Amy Shih-HuaPurchase (P)Common Shares6,100USD 13.07USD 79,727SEC filing ↗
2023-05-05Feng Amy Shih-HuaPurchase (P)Common Shares3,900USD 8.47USD 33,033SEC filing ↗
2023-03-03Feng Amy Shih-HuaPurchase (P)Common Shares3,650USD 9.67USD 35,296SEC filing ↗
2022-09-30Mastandrea Christine JPurchase (P)Common Shares500USD 8.56USD 4,280SEC filing ↗
2021-03-22Jones Jeffrey AlanPurchase (P)Common Shares6,250USD 9.55USD 59,688SEC filing ↗
2020-12-04MASTANDREA JAMES CPurchase (P)Common Shares1,000USD 8.42USD 8,420SEC filing ↗
2020-06-30Mastandrea Christine JPurchase (P)Common Shares—USD —USD —SEC filing ↗
2020-06-30MASTANDREA JAMES CPurchase (P)Common Shares—USD —USD —SEC filing ↗
2020-06-24Taylor David F.Purchase (P)Common Shares2,000USD 6.49USD 12,980SEC filing ↗

Form 4 evidence

39 transaction lines in the latest 365-day window; 212 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-14TROPOLI PETERD (D)Common Shares330,589USD 19.00USD 6,281,191SEC filing ↗
2026-07-14TROPOLI PETERAward / grant (A)Common Shares151,124USD 0.00USD 0SEC filing ↗
2026-07-14Siv SoklinD (D)Common Shares168,104USD 19.00USD 3,193,976SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-14TROPOLI PETERD (D)Common Shares330,589USD 19.00USD 6,281,191SEC filing ↗
2026-07-14TROPOLI PETERAward / grant (A)Common Shares151,124USD 0.00USD 0SEC filing ↗
2026-07-14Siv SoklinD (D)Common Shares168,104USD 19.00USD 3,193,976SEC filing ↗
2026-07-14Siv SoklinAward / grant (A)Common Shares64,688USD 0.00USD 0SEC filing ↗
2026-07-14Miller Donald AD (D)Common Shares33,694USD 19.00USD 640,186SEC filing ↗
2026-07-14Mastandrea Christine JD (D)Common Shares718,873USD 19.00USD 13,658,587SEC filing ↗
2026-07-14Mastandrea Christine JAward / grant (A)Common Shares246,410USD 0.00USD 0SEC filing ↗
2026-07-14Jones Jeffrey AlanD (D)Common Shares45,728USD 19.00USD 868,832SEC filing ↗
2026-07-14Holeman David KD (D)Common Shares1,164,103USD 19.00USD 22,117,957SEC filing ↗
2026-07-14Holeman David KAward / grant (A)Common Shares345,938USD 0.00USD 0SEC filing ↗
2026-07-14Hogan John ScottD (D)Common Shares395,045USD 19.00USD 7,505,855SEC filing ↗
2026-07-14Hogan John ScottAward / grant (A)Common Shares159,540USD 0.00USD 0SEC filing ↗
2026-07-14GATHRIGHT KRISTIAN MD (D)Common Shares15,789USD 19.00USD 299,991SEC filing ↗
2026-07-14Feng Amy Shih-HuaD (D)Common Shares69,507USD 19.00USD 1,320,633SEC filing ↗
2026-07-14Buthman Julia BrunsD (D)Common Shares31,577USD 19.00USD 599,963SEC filing ↗
2026-06-30TROPOLI PETERTax withholding (F)Common Shares4,305USD 18.96USD 81,623SEC filing ↗
2026-06-30Siv SoklinTax withholding (F)Common Shares2,324USD 18.96USD 44,063SEC filing ↗
2026-06-30Mastandrea Christine JTax withholding (F)Common Shares8,991USD 18.96USD 170,469SEC filing ↗
2026-06-30Holeman David KTax withholding (F)Common Shares13,229USD 18.96USD 250,822SEC filing ↗
2026-06-30Hogan John ScottTax withholding (F)Common Shares6,684USD 18.96USD 126,729SEC filing ↗
2026-04-01TROPOLI PETERAward / grant (A)Common Shares13,435USD 0.00USD 0SEC filing ↗
2026-04-01Siv SoklinAward / grant (A)Common Shares6,996USD 0.00USD 0SEC filing ↗
2026-04-01Mastandrea Christine JAward / grant (A)Common Shares18,525USD 0.00USD 0SEC filing ↗
2026-04-01Holeman David KAward / grant (A)Common Shares24,032USD 0.00USD 0SEC filing ↗
2026-04-01Hogan John ScottAward / grant (A)Common Shares14,019USD 0.00USD 0SEC filing ↗
2026-01-02TROPOLI PETERTax withholding (F)Common Shares15,455USD 13.89USD 214,670SEC filing ↗
2026-01-02TROPOLI PETERAward / grant (A)Common Shares38,314USD 0.00USD 0SEC filing ↗
2026-01-02Siv SoklinTax withholding (F)Common Shares6,521USD 13.89USD 90,577SEC filing ↗
2026-01-02Siv SoklinAward / grant (A)Common Shares24,084USD 0.00USD 0SEC filing ↗
2026-01-02Mastandrea Christine JAward / grant (A)Common Shares51,998USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerWSR
CIK0001175535
SectorReal Estate
Industry— Yahoo Finance
SEC SIC6798 Real Estate Investment Trusts
Exchange—

Data coverage

Local Form 4 history212 transaction lines from 2020-02-28 to 2026-07-14
24 P purchase lines · 0 S sale lines · 188 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.