SELF · Global Self Storage, Inc. · Holdings

$5.11 -0.04 (-0.78%) At close · Sep 11

Market Cap

$58.36M

11.42M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 53

Total Value: $18,087,588

Total Shares: 3,451,834

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 53 13F filers · Δ vs Mar 31, 2026

Top Holder

17.0%

−1.8 pts

Top 5

55.1%

−2.2 pts

Top 10

73.0%

−0.8 pts

HHI

780

Broadly held−58

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -3

Institutional value: +13.5%

Shares held: +10.0%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid Private Capital Management, LLC	+119,788	223,337
Mega BlackRock, Inc.	+102,855	397,495
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	+38,421	62,200
Mega GOLDMAN SACHS GROUP INC	+9,730	36,271
Mega JPMORGAN CHASE & CO	+5,866	13,477

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large RENAISSANCE TECHNOLOGIES LLC	−18,100	198,075
Large Cetera Investment Advisers	−14,983	28,452
Mega CITIGROUP INC	−5,489	140
Micro AlphaCentric Advisors LLC	−5,271	30,000
Small Crossingbridge Advisors, LLC	−5,271	30,000

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega JANE STREET GROUP, LLC	40,100	$210,124
Mega CITADEL ADVISORS LLC	27,614	$144,697
Small Financial Gravity Companies, Inc.	6,425	$33,667

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Financial Gravity Asset Management, Inc.	6,425	$32,831
Mid Advisory Services Network, LLC	3,732	$19,070
Large NISA INVESTMENT ADVISORS, LLC	951	$4,859
Mega ROYAL BANK OF CANADA	473	$2,417
Mid Tower Research Capital LLC (TRC)	227	$1,159

Filter: New 3 Increased 25 Reduced 13 Sold out 6 Unchanged 12

Showing 53 of 53

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

WINMILL & CO. INC

$3,073,258

16.99%

586,500

VANGUARD CAPITAL MANAGEMENT LLC

$2,276,732

12.59%

434,491

BlackRock, Inc.

$2,082,872

11.52%

397,495

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	340,382	$1,783,601	85.6%	Sole
BlackRock Investment Management, LLC	2,068	$10,836	0.5%	Sole
BlackRock Fund Advisors	37,448	$196,227	9.4%	Sole
BlackRock Institutional Trust Company, N.A.	17,597	$92,208	4.4%	Sole

MARATHON CAPITAL MANAGEMENT

$1,366,508

7.55%

260,784

Private Capital Management, LLC

$1,170,285

6.47%

223,337

RENAISSANCE TECHNOLOGIES LLC

$1,037,913

5.74%

198,075

GEODE CAPITAL MANAGEMENT, LLC

$750,624

4.15%

143,249

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	24,523	$128,500	17.1%	Defined
Held directly	118,726	$622,124	82.9%	Defined

WELLS FARGO & COMPANY/MN

$686,010

3.79%

130,918

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	128,917	$675,525	98.5%	Defined
WELLS FARGO CLEARING SERVICES, LLC	2,001	$10,485	1.5%	Defined

MORGAN STANLEY

$407,687

2.25%

77,803

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	16,305	$85,438	21.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	61,498	$322,249	79.0%	Defined

Kestra Advisory Services, LLC

$351,955

1.95%

67,167

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$325,928

1.80%

62,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	62,200	$325,928	100.0%	Other

VANGUARD FIDUCIARY TRUST CO

$318,010

1.76%

60,689

DIMENSIONAL FUND ADVISORS LP

$303,374

1.68%

57,896

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DFA Australia Ltd.	3,818	$20,006	6.6%	Defined
Dimensional Ireland Ltd	1,851	$9,699	3.2%	Defined
Held directly	52,227	$273,669	90.2%	Sole

Towneley Capital Management, Inc / DE

$257,006

1.42%

49,047

RAYMOND JAMES FINANCIAL INC

$241,191

1.33%

46,029

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	33,467	$175,367	72.7%	Defined
Raymond James Financial Services Advisors, Inc.	12,562	$65,824	27.3%	Defined

JANE STREET GROUP, LLC

$210,124

1.16%

40,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	40,100	$210,124	100.0%	Defined

Baker Ellis Asset Management LLC

$193,880

1.07%

37,000

GOLDMAN SACHS GROUP INC

$190,060

1.05%

36,271

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	36,271	$190,060	100.0%	Defined

PFG Investments, LLC

$186,077

1.03%

35,511

WealthTrust Axiom LLC

$167,680

0.93%

32,000

STATE STREET CORP

$165,479

0.91%

31,580

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	31,580	$165,479	100.0%	Defined

AlphaCentric Advisors LLC

$157,200

0.87%

30,000

Crossingbridge Advisors, LLC

$157,200

0.87%

30,000

Cetera Investment Advisers

$149,088

0.82%

28,452

LPL Financial LLC

$147,621

0.82%

28,172

CITADEL ADVISORS LLC

$144,697

0.80%

27,614

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	27,614	$144,697	100.0%	Defined

Man Group plc

$140,065

0.77%

26,730

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	26,730	$140,065	100.0%	Defined

NORTHERN TRUST CORP

$133,279

0.74%

25,435

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	25,435	$133,279	100.0%	Defined

JAMES INVESTMENT RESEARCH, INC.

$126,284

0.70%

24,100

NewEdge Advisors, LLC

$126,284

0.70%

24,100

Merit Financial Group, LLC

$122,076

0.67%

23,297

UBS Group AG

$121,797

0.67%

23,244

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	21,933	$114,928	94.4%	Defined
UBS AG	1,311	$6,869	5.6%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$104,648

0.58%

19,971

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	19,971	$104,648	100.0%	Defined

Ethos Financial Group, LLC

$100,477

0.56%

19,175

HSBC HOLDINGS PLC

$90,500

0.50%

17,271

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	17,271	$90,500	100.0%	Defined

O'SHAUGHNESSY ASSET MANAGEMENT, LLC

$89,583

0.50%

17,096

BARD ASSOCIATES INC

$82,011

0.45%

15,651

JPMORGAN CHASE & CO

$70,619

0.39%

13,477

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	13,477	$70,619	100.0%	Defined

RITHOLTZ WEALTH MANAGEMENT

$62,801

0.35%

11,985

BARCLAYS PLC

$55,427

0.31%

10,578

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	10,529	$55,171	99.5%	Defined
BARCLAYS CAPITAL INC.	49	$256	0.5%	Defined

Financial Gravity Companies, Inc.

$33,667

0.19%

6,425

OSAIC HOLDINGS, INC.

$29,998

0.17%

5,725

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	3,417	$17,905	59.7%	Defined
Osaic Advisory Services, LLC	2,308	$12,093	40.3%	Defined

SIMPLEX TRADING, LLC

$24,172

0.13%

4,613

Vanguard Global Advisers, LLC

$21,242

0.12%

4,054

BROADWATER CAPITAL MANAGEMENT LLC

$10,480

0.06%

2,000

PNC FINANCIAL SERVICES GROUP, INC.

$9,956

0.06%

1,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	1,900	$9,956	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$4,192

0.02%

800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	800	$4,192	100.0%	Sole

BNP PARIBAS ARBITRAGE, SA

$3,468

0.02%

662

BARTLETT & CO. WEALTH MANAGEMENT LLC

$2,646

0.01%

505

FMR LLC

$2,096

0.01%

400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STRATEGIC ADVISERS LLC	400	$2,096	100.0%	Defined

CITIGROUP INC

$733

0.00%

140

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	140	$733	100.0%	Defined

Capital Advisors, Ltd. LLC

$372

0.00%

ACADIAN ASSET MANAGEMENT LLC

$256

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	49	$256	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	473	$2,417	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	227	$1,159	100.0%	Defined

Key facts CIK 1031235 CUSIP 37955N106 13F (30d) 13 filings 13 filers Visit website Investor relations