Overseas Shipholding Group, Inc. (OSG) Ownership
OSG ownership summary
as of October 18, 2026- Institutions
- 69.8% of shares outstanding
- Insiders
- 7.92% of shares outstanding
- Shares outstanding
- 45.1M
- Float
- 42.4M shares available to trade
- Short interest
- 3.37% 1.4M shares short
- Days to cover
- 2.69 short interest down 18.5% vs prior month
- Institutions 69.78%
- Insiders 7.92%
- Other investors 22.30%
OSG top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 10.15% | 4.6M | $21.3M | +654,718 (+16.7%) | June 30, 2026 |
| 2 | Western Standard LLC | 4.99% | 2.2M | $10.5M | — | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 4.38% | 2.0M | $9.2M | +27,543 (+1.4%) | June 30, 2026 |
| 4 | Prescott Group Capital Management LLC | 3.66% | 1.6M | $7.7M | +55,206 (+3.5%) | June 30, 2026 |
| 5 | Third Avenue Management LLC | 2.98% | 1.3M | $6.3M | +668 (+0.0%) | June 30, 2026 |
| 6 | Bain Capital Credit | 2.46% | 1.1M | $5.2M | — | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 2.46% | 1.1M | $5.2M | +83,897 (+8.2%) | June 30, 2026 |
| 8 | State Street Corp | 1.99% | 899K | $4.2M | −42,731 (−4.5%) | June 30, 2026 |
| 9 | Dimensional Fund Advisors, Inc. | 1.59% | 717K | $3.3M | −593,185 (−45.3%) | June 30, 2026 |
| 10 | Jacobs Levy Equity Management, Inc. | 1.44% | 650K | $3.0M | −234,742 (−26.5%) | June 30, 2026 |
| 11 | Marshall Wace Asset Management Ltd | 1.34% | 602K | $2.8M | −463,539 (−43.5%) | June 30, 2026 |
| 12 | Zacks Investment Management Inc | 1.31% | 590K | $2.8M | +590,370 (0.0%) | June 30, 2026 |
| 13 | Bracebridge Capital, LLC | 1.29% | 579K | $2.7M | — | June 30, 2026 |
| 14 | Morgan Stanley - Brokerage Accounts | 1.26% | 570K | $2.7M | +334,317 (+142.1%) | June 30, 2026 |
| 15 | The Goldman Sachs Group Inc | 1.24% | 561K | $2.6M | +214,463 (+61.9%) | June 30, 2026 |
| 16 | RIHO Partners, LLC | 1.23% | 555K | $2.6M | +8,249 (+1.5%) | June 30, 2026 |
| 17 | Essex Investment Management Company, LLC | 1.20% | 539K | $2.5M | +121,086 (+29.0%) | June 30, 2026 |
| 18 | Gendell Jeffrey L | 1.10% | 494K | $2.3M | −919,120 (−65.0%) | June 30, 2026 |
| 19 | Wolf Hill Capital Management, LP | 1.07% | 480K | $2.2M | −990,147 (−67.3%) | June 30, 2026 |
| 20 | Nuveen, LLC | 0.95% | 428K | $2.0M | −372,088 (−46.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 2.1M shares and 7 cut 3.6M.
OSG top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.07% | 1.4M | $6.5M | — | August 31, 2026 |
| 2 | Third Avenue Small Cap Value Instl | 2.97% | 1.3M | $6.2M | — | June 30, 2026 |
| 3 | iShares Russell 2000 ETF | 2.42% | 1.1M | $5.1M | −12,608 (−1.1%) | September 30, 2026 |
| 4 | Fidelity Small Cap Index | 0.99% | 447K | $2.1M | +1,210 (+0.3%) | July 31, 2026 |
| 5 | iShares Russell 2000 Value ETF | 0.90% | 405K | $1.9M | +614 (+0.2%) | September 30, 2026 |
| 6 | CREF Total Global Stock Account R3 | 0.63% | 285K | $1.3M | — | July 31, 2026 |
| 7 | Vanguard Russell 2000 ETF | 0.53% | 238K | $1.1M | +4,680 (+2.0%) | August 31, 2026 |
| 8 | Schwab US Small-Cap ETF™ | 0.53% | 237K | $1.1M | +153 (+0.1%) | September 30, 2026 |
| 9 | BlackRock Advantage Small Cap Core Instl | 0.51% | 229K | $1.1M | +17,531 (+8.3%) | August 31, 2026 |
| 10 | Fidelity Extended Market Index | 0.39% | 173K | $808,235 | −49,717 (−22.3%) | August 31, 2026 |
| 11 | BSF Systematic US Eq Abs Ret A2 USD | 0.32% | 144K | $670,551 | +32,297 (+28.9%) | December 31, 2025 |
| 12 | iShares Micro-Cap ETF | 0.29% | 130K | $607,291 | −899 (−0.7%) | September 30, 2026 |
| 13 | 1290 Essex Small Cap Growth I | 0.28% | 126K | $586,736 | −53,613 (−29.9%) | August 31, 2026 |
| 14 | Dimensional US Core Equity 2 ETF | 0.26% | 119K | $555,938 | — | September 30, 2026 |
| 15 | Goldman Sachs Small Cp Val Insghts Instl | 0.25% | 112K | $523,099 | +65,718 (+141.2%) | July 31, 2026 |
| 16 | Schwab Small Cap Index | 0.22% | 101K | $469,146 | — | August 31, 2026 |
| 17 | iShares Core S&P Total US Stock Mkt ETF | 0.20% | 91K | $426,269 | +80 (+0.1%) | September 30, 2026 |
| 18 | Fidelity Total Market Index | 0.20% | 88K | $411,562 | — | August 31, 2026 |
| 19 | Strategic Advisers U.S. Total Stock | 0.18% | 83K | $388,197 | +33,837 (+68.4%) | August 31, 2026 |
| 20 | Invesco RAFI US 1500 Small-Mid ETF | 0.18% | 82K | $384,226 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
OSG insider transactions
latest 5| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-02 | Claude Leblanc | Buy | $7.59 | 12,000 | $91,080 |
| 2025-11-12 | R Sharon Smith | Buy | $10.25 | 20 | $205 |
| 2025-10-01 | Claude Leblanc | Buy | $8.54 | 25,000 | $213,500 |
| 2025-08-11 | Claude Leblanc | Buy | $7.03 | 25,000 | $175,750 |
| 2025-05-14 | Jeffrey Scott Stein | Buy | $6.46 | 15,000 | $96,900 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
OSG shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns OSG
Institutional investors own 69.8% of Overseas Shipholding's shares and insiders 7.92%. The largest holder is BlackRock Inc with 10.15% of the shares (4.6M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 7 reduced their stake in the latest filings. Short interest is 3.37% of the float, or 2.69 days of average trading volume. The share count fell 3.1% since 2014.
Related: OSG analyst forecast, OSG key metrics. See the OSG stock overview for the latest quote and news.
OSG ownership FAQ
Who owns the most Overseas Shipholding stock?
The largest shareholders of Overseas Shipholding are BlackRock Inc (10.15%), Western Standard LLC (4.99%), Vanguard Capital Management, LLC (4.38%), Prescott Group Capital Management LLC (3.66%), Third Avenue Management LLC (2.98%).
What percentage of Overseas Shipholding is owned by institutions?
Institutions hold 69.8% of Overseas Shipholding's shares outstanding; insiders hold 7.92%.
Which funds own Overseas Shipholding?
The largest fund holders of Overseas Shipholding are Vanguard MStar Total Stk Mkt Idx Invest (3.07%), Third Avenue Small Cap Value Instl (2.97%), iShares Russell 2000 ETF (2.42%), Fidelity Small Cap Index (0.99%), iShares Russell 2000 Value ETF (0.90%).
What is Overseas Shipholding's short interest?
1.4M shares of Overseas Shipholding were sold short, 3.37% of the float; at the average daily volume it would take 2.69 days to cover.
Are insiders buying or selling Overseas Shipholding?
Of the latest 5 reported insider transactions in Overseas Shipholding (since May 14, 2025), 5 were purchases and 0 were sales.
How many shares of Overseas Shipholding are outstanding?
Overseas Shipholding has 45.1M shares outstanding, of which 42.4M are in the public float.