GASS · StealthGas Inc. · Holdings

$9.42 +0.15 (+1.62%) At close · Sep 11

Market Cap

$354.46M

37.63M

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: 69

Total Value: $111,222,599

Total Shares: 14,078,814

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 69 13F filers · Δ vs Mar 31, 2026

Top Holder

32.8%

+0.0 pts

Top 5

78.2%

+1.5 pts

Top 10

87.6%

+2.3 pts

HHI

1,747

Moderately concentrated+34

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -2

Institutional value: -16.3%

Shares held: -2.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega Qube Research & Technologies Ltd	+81,754	239,469
Large ACADIAN ASSET MANAGEMENT LLC	+77,448	1,199,426
Large MARSHALL WACE, LLP	+52,392	200,307
Mid BOOTHBAY FUND MANAGEMENT, LLC	+29,397	40,650
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	+26,970	541,841

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega UBS Group AG	−136,429	49,260
Small Glendon Capital Management LP	−126,518	4,613,384
Large RENAISSANCE TECHNOLOGIES LLC	−77,400	1,955,231
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−34,722	83,304
Mega TWO SIGMA INVESTMENTS, LP	−27,853	396,581

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega LPL Financial LLC	17,599	$139,032
Large Tidal Investments LLC	16,413	$129,662
Small Naviter Wealth, LLC	11,038	$87,200
Mid MANGROVE PARTNERS IM, LLC	10,813	$85,422
Mid Quarry LP	630	$4,977

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large Quadrature Capital Ltd	65,272	$599,196
Mid Jump Financial, LLC	28,652	$263,025
Micro Oceanic Investment Management LTD	26,173	$240,268
Small DGS Capital Management, LLC	25,767	$236,541
Large Squarepoint Ops LLC	23,698	$217,547

Filter: New 8 Increased 19 Reduced 23 Sold out 10 Unchanged 19

Showing 71 of 71

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Glendon Capital Management LP

$36,445,733

32.77%

4,613,384

TOWERVIEW LLC

$21,330,000

19.18%

2,700,000

RENAISSANCE TECHNOLOGIES LLC

$15,446,324

13.89%

1,955,231

ACADIAN ASSET MANAGEMENT LLC

$9,475,465

8.52%

1,199,426

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

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	1,199,426	$9,475,465	100.0%	Defined

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$4,280,543

3.85%

541,841

TWO SIGMA INVESTMENTS, LP

$3,132,989

2.82%

396,581

MORGAN STANLEY

$2,558,530

2.30%

323,865

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	3,631	$28,684	1.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	302,481	$2,389,599	93.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	4,001	$31,607	1.2%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13,752	$108,640	4.2%	Defined

Qube Research & Technologies Ltd

$1,891,805

1.70%

239,469

MARSHALL WACE, LLP

$1,582,425

1.42%

200,307

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

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	200,307	$1,582,425	100.0%	Other

MILLENNIUM MANAGEMENT LLC

$1,255,973

1.13%

158,984

Janney Montgomery Scott LLC

$1,220,478

1.10%

154,491

CITADEL ADVISORS LLC

$661,956

0.60%

83,792

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	83,792	$661,956	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$658,101

0.59%

83,304

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	83,304	$658,101	100.0%	Other

Point72 Asset Management, L.P.

$627,931

0.56%

79,485

Kestra Advisory Services, LLC

$621,730

0.56%

78,700

GSA CAPITAL PARTNERS LLP

$607,541

0.55%

76,904

JANE STREET GROUP, LLC

$575,783

0.52%

72,884

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	67,586	$533,929	92.7%	Defined
Jane Street Global Trading, LLC	5,298	$41,854	7.3%	Defined

Centiva Capital, LP

$557,495

0.50%

70,569

Universal- Beteiligungs- und Servicegesellschaft mbH

$510,000

0.46%

64,557

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

Manager	Shares	Value (USD)	% of position	Discretion
Universal-Investment-Gesellschaft mbH	64,557	$510,000	100.0%	Defined

NewEdge Advisors, LLC

$491,308

0.44%

62,191

BlackRock, Inc.

$396,611

0.36%

50,204

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	42,626	$336,745	84.9%	Sole
BlackRock Institutional Trust Company, N.A.	7,578	$59,866	15.1%	Sole

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$396,090

0.36%

50,138

UBS Group AG

$389,153

0.35%

49,260

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	17,620	$139,198	35.8%	Defined
UBS AG	42	$331	0.1%	Defined
UBS Europe SE	31,598	$249,624	64.1%	Defined

Militia Capital Management LLC

$363,439

0.33%

46,005

GOLDMAN SACHS GROUP INC

$338,601

0.30%

42,861

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	42,861	$338,601	100.0%	Defined

WINTON GROUP Ltd

$329,272

0.30%

41,680

BOOTHBAY FUND MANAGEMENT, LLC

$321,135

0.29%

40,650

BNP PARIBAS ARBITRAGE, SA

$317,422

0.29%

40,180

R Squared Ltd

$298,991

0.27%

37,847

EXCHANGE TRADED CONCEPTS, LLC

$260,502

0.23%

32,975

SEI INVESTMENTS CO

$239,456

0.22%

30,311

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

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	30,311	$239,456	100.0%	Sole

Russell Investments Group, Ltd.

$235,348

0.21%

29,791

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

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	355	$2,804	1.2%	Defined
Russell Investments Limited joint	29,436	$232,544	98.8%	Other

Sowell Financial Services LLC

$228,112

0.21%

28,875

Mraz, Amerine & Associates, Inc.

$209,350

0.19%

26,500

STATE STREET CORP

$204,894

0.18%

25,936

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

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC.	25,936	$204,894	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$191,116

0.17%

24,192

OPPENHEIMER & CO INC

$189,600

0.17%

24,000

Focus Partners Wealth

$172,220

0.15%

21,800

JANE STREET GROUP, LLC

$146,150

0.13%

18,500

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	18,500	$146,150	100.0%	Defined

LPL Financial LLC

$139,032

0.13%

17,599

Virtu Financial LLC

$131,621

0.12%

16,661

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	16,661	$131,621	100.0%	Defined

Tidal Investments LLC

$129,662

0.12%

16,413

CITADEL ADVISORS LLC

$127,190

0.11%

16,100

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	16,100	$127,190	100.0%	Defined

IHT Wealth Management, LLC

$126,400

0.11%

16,000

HSBC HOLDINGS PLC

$125,159

0.11%

15,843

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

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	15,843	$125,159	100.0%	Defined

IMC-Chicago, LLC

$124,132

0.11%

15,713

Vestmark Advisory Solutions, Inc.

$122,931

0.11%

15,561

AXQ CAPITAL, LP

$119,503

0.11%

15,127

SG Americas Securities, LLC

$116,967

0.11%

14,806

JPMORGAN CHASE & CO

$95,123

0.09%

12,041

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

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	423	$3,341	3.5%	Defined
J.P. Morgan Securities LLC	11,618	$91,782	96.5%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$90,060

0.08%

11,400

GROUP ONE TRADING LLC

$88,306

0.08%

11,178

Naviter Wealth, LLC

$87,200

0.08%

11,038

MANGROVE PARTNERS IM, LLC

$85,422

0.08%

10,813

LAZARD ASSET MANAGEMENT LLC

$83,534

0.08%

10,574

Sequoia Financial Advisors, LLC

$79,000

0.07%

10,000

BARCLAYS PLC

$54,138

0.05%

6,853

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	6,853	$54,138	100.0%	Defined

ROYAL BANK OF CANADA

$43,426

0.04%

5,497

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	1,547	$12,221	28.1%	Defined
RBC Dominion Securities Inc.	950	$7,505	17.3%	Defined
RBC Private Counsel (USA) Inc.	3,000	$23,700	54.6%	Defined

LOM Asset Management Ltd

$39,500

0.04%

5,000

SIMPLEX TRADING, LLC

$33,006

0.03%

4,178

VSM Wealth Advisory, LLC

$7,900

0.01%

1,000

Quarry LP

$4,977

0.00%

630

OSAIC HOLDINGS, INC.

$3,555

0.00%

450

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	450	$3,555	100.0%	Defined

WELLS FARGO & COMPANY/MN

$2,180

0.00%

276

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

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	276	$2,180	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$1,580

0.00%

200

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.	200	$1,580	100.0%	Sole

TD Waterhouse Canada Inc.

$790

0.00%

100

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

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	100	$790	100.0%	Defined

Tower Research Capital LLC (TRC)

$387

0.00%

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)	49	$387	100.0%	Defined

Glen Eagle Advisors, LLC

$189

0.00%

Archer Investment Corp

$79

0.00%

Caitong International Asset Management Co., Ltd

$63

0.00%

SBI Securities Co., Ltd.

$15

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	65,272	$599,196	100.0%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC joint	600	$5,508	2.1%	Defined
Leap GP LLC joint	28,052	$257,517	97.9%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	23,698	$217,547	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	16,020	$147,063	100.0%	Defined

Key facts CIK 1328919 CUSIP Y81669106 13F (30d) 24 filings 24 filers Visit website Investor relations