InsidersTradesSigma
Total declarations
Companies
▲ Purchases (12 ops.)
▼ Sales (0 ops.)
Insider track record
OtherDisclosed buys
12
Disclosed sells
0
T+90 hit rate
75%
T+90 mean return
+4.2%
Across 4 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the full record of transactions filed by Winmill Mark Campbell. Officer active across 2 companies, notably Global Self Storage, Inc.. Cumulatively, 17 reports have been logged. Breakdown: 12 buys · 0 sell. Total volume traded: €150k. Activity tracked since 20 August 2021. The latest transaction was disclosed on 14 May 2026 (Acquisition). Regulator: SEC (Form 4). All data is openly available.
Companies and markets linked to Winmill Mark Campbell
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations17 total
4,000 shares@ US$5.330.032% mcap17.7% of flowCommon StockSEC:0001019264-26-000003:0
Canonical exit: 12 Aug 2026 (T+90)
12,672 shares@ US$5.08100.0% of flowCommon StockSEC:0001019264-26-000002:0
6,000 shares@ US$5.128432.3% of flowCommon StockSEC:0001019264-25-000003:0
Canonical exit: 3 Mar 2026 (T+90)
10,000 shares@ US$5.6714.0% of flowCommon StockSEC:0001031235-25-000009:0
Canonical exit: 17 Aug 2025 (T+90)
12,672 shares@ US$5.0816.5% of flowCommon StockSEC:0001031235-25-000001:0
2,400 shares@ US$4.89993.0% of flowCommon StockSEC:0001031235-24-000008:0
Canonical exit: 26 Aug 2024 (T+90)
12,672 shares@ US$4.3214.0% of flowCommon StockSEC:0001031235-24-000004:0
1,200 shares@ US$4.82361.5% of flowCommon StockSEC:0001031235-23-000010:0
Canonical exit: 14 Feb 2024 (T+90)
1,000 shares@ US$5.071.3% of flowCommon StockSEC:0001031235-23-000007:0
Canonical exit: 15 Nov 2023 (T+90)
1,500 shares@ US$5.101.9% of flowCommon StockSEC:0001019264-23-000001:0
Canonical exit: 13 Aug 2023 (T+90)
12,672 shares@ US$5.1116.6% of flowCommon StockSEC:0001031235-23-000004:0
100 shares@ US$5.170.1% of flowCommon StockSEC:0001031235-22-000013:0
Canonical exit: 16 Feb 2023 (T+90)
1,400 shares@ US$6.072.4% of flowCommon StockSEC:0001031235-22-000011:0
Canonical exit: 21 Nov 2022 (T+90)
1,700 shares@ US$5.742.8% of flowCommon StockSEC:0001019264-22-000001:0
Canonical exit: 18 Aug 2022 (T+90)
8,025 shares@ US$5.524712.1% of flowCommon StockSEC:0001716808-22-000004:0
1,000 shares@ US$5.121.3% of flowCommon StockSEC:0001019264-21-000003:0
Canonical exit: 22 Nov 2021 (T+90)
1,000 shares@ US$5.101.3% of flowCommon StockSEC:0001019264-21-000002:0
Canonical exit: 18 Nov 2021 (T+90)
17 of 17 declarations
About Winmill Mark Campbell
WINMILL MARK CAMPBELL is President and CEO of Global Self Storage, Inc. (XNAS). Across 17 filings, the sampled 17 filings run from 2021-08-24 to 2026-05-15, with EUR 150058 of buys and EUR 0 of sells, and the modal transaction nature is Acquisition.
