Key facts
- GASS - StealthGas Inc. has 4 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 4 Insiders of StealthGas Inc.
- Symbol
- GASS on Nasdaq
- Location
- Athens
Change
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 21 May 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
StealthGas Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Harry Vafias | CEO, President & CFO, Director | $111,742,043 | Median | 27 Apr 2026 | ||
| Markos Drakos | Director | $463,977 | Mixed | 18 Mar 2026 | ||
| Michael Gordon Jolliffe | Director | $404,040 | Mixed | 18 Mar 2026 | ||
| Ioannis Kostogiannis | Director | $324,754 | Mixed | 18 Mar 2026 |
Top shareholders of StealthGas Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Flawless Management Inc. |
13D/G
|
Harry N. Vafias |
33%
|
12,412,713
|
$97,688,051 | +$4,800,700 | 23 Feb 2026 | |
| Glendon Capital Management LP |
13F
13D/G
|
Company · Glendon Capital Management L.P. |
14%
from 13D/G
|
4,739,902
|
$43,512,300 | — | 31 Mar 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
13D/G
|
Company |
5%
from 13D/G
|
2,032,631
|
$18,659,553 | — | 31 Mar 2026 | |
| BARCLAYS PLC |
13D/G
13F
|
Company |
4.4%
|
1,614,533
|
$11,334,022 | -$3,772,401 | 31 Dec 2025 | |
| Harry Vafias |
3/4/5
|
CEO, President & CFO, Director |
32%
|
12,172,336
|
$111,742,043 | — | 27 Apr 2026 | |
| Markos Drakos |
3/4/5
|
Director |
0.16%
|
59,714
|
$463,977 | — | 18 Mar 2026 | |
| Michael Gordon Jolliffe |
3/4/5
|
Director |
0.14%
|
52,000
|
$404,040 | — | 18 Mar 2026 | |
| Ioannis Kostogiannis |
3/4/5
|
Director |
0.11%
|
41,796
|
$324,754 | — | 18 Mar 2026 | |
| TOWERVIEW LLC |
13F
|
Company |
7.1%
|
2,690,958
|
$24,702,994 | — | 31 Mar 2026 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
3%
|
1,121,978
|
$10,274,000 | — | 31 Mar 2026 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
1.4%
|
514,871
|
$4,726,516 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
1.1%
|
424,434
|
$3,896,304 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.79%
|
299,483
|
$2,749,256 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.49%
|
185,689
|
$1,704,625 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.47%
|
178,654
|
$1,640,044 | — | 31 Mar 2026 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.42%
|
157,715
|
$1,447,824 | — | 31 Mar 2026 | |
| Janney Montgomery Scott LLC |
13F
|
Company |
0.41%
|
155,140
|
$1,424,000 | — | 31 Mar 2026 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.39%
|
147,915
|
$1,357,860 | — | 31 Mar 2026 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.31%
|
117,932
|
$1,082,616 | — | 31 Mar 2026 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.25%
|
95,203
|
$873,964 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.21%
|
81,126
|
$744,737 | — | 31 Mar 2026 | |
| Kestra Advisory Services, LLC |
13F
|
Company |
0.21%
|
78,700
|
$722,466 | — | 31 Mar 2026 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.2%
|
76,096
|
$699,000 | — | 31 Mar 2026 | |
| Centiva Capital, LP |
13F
|
Company |
0.2%
|
74,491
|
$683,827 | — | 31 Mar 2026 | |
| Quadrature Capital Ltd |
13F
|
Company |
0.17%
|
65,272
|
$599,197 | — | 31 Mar 2026 | |
| Universal- Beteiligungs- und Servicegesellschaft mbH |
13F
|
Individual |
0.17%
|
64,557
|
$592,633 | — | 31 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.16%
|
61,007
|
$560,044 | — | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
|
Company |
0.13%
|
49,950
|
$458,541 | — | 31 Mar 2026 | |
| Militia Capital Management LLC |
13F
|
Company |
0.12%
|
46,005
|
$422,326 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.12%
|
45,264
|
$415,524 | — | 31 Mar 2026 | |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS |
13F
|
Company |
0.11%
|
41,837
|
$384,064 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.11%
|
41,452
|
$380,529 | — | 31 Mar 2026 | |
| WINTON GROUP Ltd |
13F
|
Company |
0.11%
|
40,197
|
$369,008 | — | 31 Mar 2026 | |
| IMC-Chicago, LLC |
13F
|
Company |
0.1%
|
38,920
|
$357,286 | — | 31 Mar 2026 | |
| R Squared Ltd |
13F
|
Company |
0.1%
|
38,175
|
$350,447 | — | 31 Mar 2026 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.08%
|
30,949
|
$284,111 | — | 31 Mar 2026 | |
| Sowell Financial Services LLC |
13F
|
Company |
0.08%
|
30,875
|
$283,433 | — | 31 Mar 2026 | |
| SEI INVESTMENTS CO |
13F
|
Company |
0.08%
|
30,311
|
$278,255 | — | 31 Mar 2026 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.08%
|
29,791
|
$268,477 | — | 31 Mar 2026 | |
| Jump Financial, LLC |
13F
|
Company |
0.08%
|
28,652
|
$263,026 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
0.07%
|
27,840
|
$255,571 | — | 31 Mar 2026 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.07%
|
26,845
|
$246,437 | — | 31 Mar 2026 | |
| Mraz, Amerine & Associates, Inc. |
13F
|
Company |
0.07%
|
26,500
|
$243,270 | — | 31 Mar 2026 | |
| Oceanic Investment Management LTD |
13F
|
Company |
0.07%
|
26,173
|
$240,268 | — | 31 Mar 2026 | |
| AXQ CAPITAL, LP |
13F
|
Company |
0.07%
|
25,971
|
$238,414 | — | 31 Mar 2026 | |
| DGS Capital Management, LLC |
13F
|
Company |
0.07%
|
25,767
|
$236,541 | — | 31 Mar 2026 | |
| EXCHANGE TRADED CONCEPTS, LLC |
13F
|
Company |
0.07%
|
25,123
|
$230,629 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.06%
|
24,192
|
$222,082 | — | 31 Mar 2026 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.06%
|
23,698
|
$217,548 | — | 31 Mar 2026 | |
| OPPENHEIMER & CO INC |
13F
|
Company |
0.06%
|
21,000
|
$192,780 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for StealthGas Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Harry Vafias | GASS | Common Stock | Gift | 2.27% | 99,623 | 4,480,863 | 29 Apr 2026 | Direct | ||
| Harry Vafias | GASS | Common Stock | Options Exercise | 2.34% | 100,000 | 4,381,240 | 27 Apr 2026 | Direct | ||
| Harry Vafias | GASS | Stock Option (Right to Buy) | Options Exercise | -100% | -100,000 | 0 | 27 Apr 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.