StealthGas Inc.
StealthGas Inc. (GASS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GASS · as of Mar 31, 2025
Ownership Breakdown
58
Institutional Holders
$83.19M
Total Inst. Value
▼ $2.95M vs Q4
37.19M
Shares Outstanding
freeFloat 66.67%
14.73M
13F Shares Held
▼ 522,565 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GASS largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
GLENDON CAPITAL MANAGEMENT LP deep sea foreign transportation of freight | 5.91M | 16.71% | 16.71% | $33.37B | May 14, 2025 | — held |
TOWERVIEW LLC deep sea foreign transportation of freight | 2.77M | 7.84% | 7.84% | $15.65B | May 6, 2025 | ▲ 7.5K |
RENAISSANCE TECHNOLOGIES LLC deep sea foreign transportation of freight | 1.76M | 4.97% | 4.97% | $9.92B | May 14, 2025 | ▼ 11.2K |
ACADIAN ASSET MANAGEMENT LLC deep sea foreign transportation of freight | 1.07M | 3.04% | 3.04% | $6.04B | May 21, 2025 | ▼ 229.5K |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP deep sea foreign transportation of freight | 502.7K | 1.42% | 1.42% | $2.84B | May 14, 2025 | — held |
MARSHALL WACE, LLP deep sea foreign transportation of freight | 379.5K | 1.07% | 1.07% | $2.14B | May 15, 2025 | ▲ 13.3K |
TWO SIGMA ADVISERS, LP deep sea foreign transportation of freight | 341.6K | 96.65% | 96.65% | $1.93B | May 15, 2025 | ▲ 6.4K |
MILLENNIUM MANAGEMENT LLC deep sea foreign transportation of freight | 284.2K | 80.42% | 80.42% | $1.61B | May 15, 2025 | ▼ 95.8K |
UBS GROUP AG deep sea foreign transportation of freight | 248.2K | 70.22% | 70.22% | $1.40B | May 13, 2025 | ▼ 14.1K |
TWO SIGMA INVESTMENTS, LP deep sea foreign transportation of freight | 200.3K | 56.66% | 56.66% | $1.13B | May 15, 2025 | ▼ 18.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
13
Increased
+118.4K shares3
New Positions
first time holders21
Decreased
−546.7K shares0
Sold Out
fully exitedNet shares change (top 50)
428.4K
+118.4K / −546.7K
Net new holders
-5
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GASS insider trading · insider activity
Source: SEC Form 4
2
Buy transactions
1
Sell transactions
2.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Vafias Harry CEO, President & CFO | Apr 29, 2026 | Gift | 99,623 | — | — | 4.48M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
StealthGas Inc. (GASS) is primarily owned by institutional investors, who hold approximately 39.6% of total shares outstanding. Company insiders own approximately 33.33%, while retail and public investors account for the remaining 27.06%.
The largest institutional shareholder of StealthGas Inc. is GLENDON CAPITAL MANAGEMENT LP, holding approximately 5.91 million shares — equal to 16.71% of outstanding shares — as of March 31, 2025.
A total of 58 institutional investors currently hold GASS stock, with a combined institutional value of approximately $83,192,879 as of the most recent 13F filing period.
Frequently asked questions
GASS ownershipStealthGas Inc. (GASS) is primarily owned by institutional investors, who hold approximately 39.6% of shares. The largest shareholder is GLENDON CAPITAL MANAGEMENT LP with a 16.71% stake. Company insiders hold 33.33%. Data sourced from SEC Form 13F as of March 31, 2025.