DOSSIER · 13F Holders · Q1 2026
SELF

GLOBAL SELF STORAGE INC

57 institutions still hold GLOBAL SELF STORAGE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 37955N106·57 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$14M
visible holders
Holders
57
filers reporting
Concentration
21.39%
WINMILL & CO. INC #1
top holder share
AI Holders Summary · Q1 2026

57 institutions reported SELF in Q1 2026. WINMILL & CO. INC leads at 21.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
WINMILL & CO. INC
CIK 0000052234
$3M587K0.86%Q1 2026
02
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$2M430K0.00%Q1 2026
03
BlackRock, Inc.
CIK 0002012383
$2M295K0.00%Q1 2026
04
MARATHON CAPITAL MANAGEMENT
CIK 0001213206
$1M261K0.28%Q2 2026
05
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$1M216K0.00%Q1 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$737K144K0.00%Q1 2026
07
WELLS FARGO & COMPANY/MN
CIK 0000072971
$669K131K0.00%Q1 2026
08
Private Capital Management, LLC
CIK 0001588456
$529K104K0.05%Q1 2026
09
MORGAN STANLEY
CIK 0000895421
$374K73K0.00%Q1 2026
10
Kestra Advisory Services, LLC
CIK 0001830819
$323K63K0.00%Q1 2026
11
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$312K61K0.00%Q1 2026
12
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$308K60K0.00%Q1 2026
13
Towneley Capital Management, Inc / DE
CIK 0002004980
$247K48K0.05%Q1 2026
14
Cetera Investment Advisers
CIK 0001666741
$222K43K0.00%Q1 2026
15
RAYMOND JAMES FINANCIAL INC
CIK 0000720005
$209K41K0.00%Q1 2026
16
Baker Ellis Asset Management LLC
CIK 0001365559
$194K37K0.02%Q2 2026
17
CITADEL ADVISORS LLC
CIK 0001423053
$186K37K0.00%Q4 2025
18
PFG Investments, LLC
CIK 0001973224
$186K36K0.01%Q2 2026
19
Crossingbridge Advisors, LLC
CIK 0001770024
$180K35K0.03%Q1 2026
20
STATE STREET CORP
CIK 0000093751
$161K32K0.00%Q1 2026
Page 1 of 3
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Insiders at GLOBAL SELF STORAGE INC
Burke Russell E IiiZachary William ChesterWinmill Mark CampbellKlimoski Donald IiWinmill & Co. IncCarroll Sally CoonradTuxis CorpKamerman Russell