Global Self Storage SELF Insider Ownership

NASDAQ SELF
$5.15 +0.00 (+0.00%)
At close: Sep 8, 2026 · 4:00 PM EDT

Insider Holdings by Owner

1.13Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.76%
Shares Held by Insiders
198.07K
filed for Sep 2026
Shares Outstanding
11.23Mn
11,232,624 shares
Direct Holdings
198.07K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
10
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —
Form 4 Holdings

Insiders Holding SELF

Insiders 10
Shares held 1.13Mn
Of outstanding 10.07%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Mark Campbell Winmill President And Ceo 368,582 0 368,582 32.6% 15 May, 2026
2 Corp Tuxis Other 303,758 0 303,758 26.9% 19 May, 2025
3 Co. Inc Winmill Other 198,065 0 198,065 17.5% 20 Aug, 2026
4 Donald Ii Klimoski General Counsel 97,554 0 97,554 8.6% 25 Mar, 2026
5 Thomas Omalley Chief Financial Officer 91,694 0 91,694 8.1% 25 Mar, 2026
6 Russell E Iii Burke Director 40,002 0 40,002 3.5% 14 Aug, 2026
7 William Chester Zachary Director 18,296 0 18,296 1.6% 13 Aug, 2026
8 Russell Kamerman Assistant General Counsel 5,925 0 5,925 0.5% 25 Mar, 2026
9 Sally Coonrad Carroll Director 3,776 0 3,776 0.3% 22 May, 2025
10 George B Langa Director 3,547 0 3,547 0.3% 29 Nov, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

783 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
19 Aug, 2026 Co. Inc Winmill Other Acquired P 6,877 $5.40 $37.16K 191,164 Direct
20 Aug, 2026 Co. Inc Winmill Other Acquired P 6,901 $5.42 $37.42K 198,065 Direct
13 Aug, 2026 Russell E Iii Burke Director Acquired P 1,625 $5.21 $8.46K 40,002 Direct
11 Aug, 2026 William Chester Zachary Director Acquired A 196 $5.10 $1,000 18,296 Direct
11 Aug, 2026 Russell E Iii Burke Director Acquired A 196 $5.10 $1,000 38,377 Direct
11 Aug, 2026 Co. Inc Winmill Other Acquired P 5,887 $5.17 $30.41K 153,528 Direct
12 Aug, 2026 Co. Inc Winmill Other Acquired P 6,248 $5.15 $32.19K 159,776 Direct
14 May, 2026 Mark Campbell Winmill President And Ceo Acquired P 4,000 $5.33 $21.32K 368,582 Direct
12 May, 2026 William Chester Zachary Director Acquired A 94 $5.31 $499 18,100 Direct
12 May, 2026 Russell E Iii Burke Director Acquired A 94 $5.31 $499 38,181 Direct
31 Mar, 2026 William Chester Zachary Director Acquired A 2,739 $5.11 $14.00K 18,006 Direct
31 Mar, 2026 Russell E Iii Burke Director Acquired A 2,739 $5.11 $14.00K 38,087 Direct
24 Mar, 2026 Russell Kamerman Assistant General Counsel Acquired A 500 $5.10 $2.55K 5,925 Direct
24 Mar, 2026 Thomas Omalley Chief Financial Officer Acquired A 5,527 $5.08 $28.08K 86,167 Direct
24 Mar, 2026 Mark Campbell Winmill President And Ceo Acquired A 12,672 $5.08 $64.37K 351,910 Direct
24 Mar, 2026 Donald Ii Klimoski General Counsel Acquired A 5,527 $5.08 $28.08K 92,027 Direct
24 Mar, 2026 Thomas Omalley Chief Financial Officer Acquired A 5,527 $5.08 $28.08K 86,167 Direct
24 Mar, 2026 Russell Kamerman Assistant General Counsel Acquired A 500 $5.10 $2.55K 5,925 Direct
24 Mar, 2026 Mark Campbell Winmill President And Ceo Acquired A 12,672 $5.08 $64.37K 351,910 Direct
24 Mar, 2026 Donald Ii Klimoski General Counsel Acquired A 5,527 $5.08 $28.08K 92,027 Direct