Who owns GSL (GSL)
Which tracked institutional funds hold GSL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GSL company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
46 tracked funds added or opened GSL while 26 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GSL’s largest tracked holder by dollar value, DONALD SMITH & CO., INC., sizes it at 1.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GSL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 196 tracked filers holding GSL, 103 increased or opened the position and 82 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GSL between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 5
- FIRST TRUST ADVISORS LP$13M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$11M
- Dynamic Technology Lab Private Ltd$728K
- Wealthstar Advisors, LLC$623K
- HSBC HOLDINGS PLC$600K
Full exits 8
- TWO SIGMA ADVISERS, LP$22M
- DEUTSCHE BANK AG\$3M
- ARGA Investment Management, LP$2M
- Capital Advisory Group Advisory Services, LLC$2M
- Numerai GP LLC$891K
- Verdad Advisers, LP$860K
Largest adds
- TWO SIGMA INVESTMENTS, LP$28M
- Man Group plc$16M
- Qube Research & Technologies Ltd$7M
- Grantham, Mayo, Van Otterloo & Co. LLC$7M
- D. E. Shaw & Co., Inc.$6M
- UBS Group AG$6M
Largest trims
- DONALD SMITH & CO., INC.$14M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$8M
- PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.$7M
- MILLENNIUM MANAGEMENT LLC$7M
- MORGAN STANLEY$5M
- Crescent Grove Advisors, LLC$4M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| DONALD SMITH & CO., INC. trimmed | 1,578,182 | $59M | 8.6% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC | 1,472,519 | $55M | 8.0% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,397,646 | $52M | 7.6% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 763,727 | $28M | 4.2% | 2026-Q1 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. trimmed | 718,073 | $27M | 3.9% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 618,750 | $23M | 3.4% | 2026-Q1 |
| Man Group plc added | 501,890 | $19M | 2.7% | 2026-Q1 |
| CSM Advisors, LLC added | 458,470 | $17M | 2.5% | 2026-Q1 |
| RBF Capital, LLC | 437,463 | $16M | 2.4% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 377,337 | $14M | 2.1% | 2026-Q1 |
| STATE STREET CORP added | 353,298 | $13M | 1.9% | 2026-Q1 |
| Allianz Asset Management GmbH added | 351,602 | $13M | 1.9% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 340,621 | $13M | 1.9% | 2026-Q1 |
| LPL Financial LLC added | 305,490 | $11M | 1.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 300,834 | $11M | 1.6% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC added | 294,674 | $11M | 1.6% | 2026-Q1 |
| JTC Employer Solutions Trustee Ltd trimmed | 293,258 | $11M | 1.6% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 289,809 | $11M | 1.6% | 2026-Q1 |
| BlackRock, Inc. added | 274,627 | $10M | 1.5% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 267,247 | $10M | 1.5% | 2026-Q1 |
| MORGAN STANLEY trimmed | 255,910 | $10M | 1.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 224,523 | $8M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 223,950 | $8M | 1.2% | 2026-Q1 |
| Grantham, Mayo, Van Otterloo & Co. LLC added | 211,563 | $8M | 1.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 200,806 | $7M | 1.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 200,793 | $7M | 1.1% | 2026-Q1 |
| UBS Group AG added | 200,495 | $7M | 1.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 185,168 | $7M | 1.0% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 164,391 | $6M | 0.9% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 163,566 | $6M | 0.9% | 2026-Q1 |
| LONESTAR CAPITAL MANAGEMENT LLC | 160,000 | $6M | 0.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 129,771 | $5M | 0.7% | 2026-Q1 |
| ISTHMUS PARTNERS, LLC added | 121,899 | $5M | 0.7% | 2026-Q1 |
| Royal Palms Capital LLC added | 119,340 | $4M | 0.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 116,852 | $4M | 0.6% | 2026-Q1 |
| Trexquant Investment LP trimmed | 112,616 | $4M | 0.6% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 111,929 | $4M | 0.6% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 106,246 | $4M | 0.6% | 2026-Q1 |
| HARBOR CAPITAL ADVISORS, INC. trimmed | 94,674 | $4M | 0.5% | 2026-Q1 |
| Janney Montgomery Scott LLC trimmed | 92,692 | $3M | 0.5% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 89,933 | $3M | 0.5% | 2026-Q1 |
| COMMONS CAPITAL, LLC | 86,000 | $3M | 0.5% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 85,806 | $3M | 0.5% | 2026-Q1 |
| Moors & Cabot, Inc. trimmed | 82,050 | $3M | 0.4% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 77,033 | $3M | 0.4% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 75,138 | $3M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 74,854 | $3M | 0.4% | 2026-Q1 |
| State of Tennessee, Department of Treasury trimmed | 60,022 | $2M | 0.3% | 2026-Q1 |
| Engineers Gate Manager LP added | 55,385 | $2M | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 51,483 | $2M | 0.3% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 50,122 | $2M | 0.3% | 2026-Q1 |
| HRT FINANCIAL LP added | 46,903 | $2M | 0.3% | 2026-Q1 |
| Kestra Advisory Services, LLC trimmed | 46,504 | $2M | 0.3% | 2026-Q1 |
| DGS Capital Management, LLC trimmed | 46,036 | $2M | 0.3% | 2026-Q1 |
| Quantbot Technologies LP added | 45,785 | $2M | 0.3% | 2026-Q1 |
| Redhawk Wealth Advisors, Inc. trimmed | 44,427 | $2M | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 42,487 | $2M | 0.2% | 2026-Q1 |
| Point Nemo Capital, LLC added | 40,416 | $2M | 0.2% | 2026-Q1 |
| Magnetar Financial LLC added | 39,438 | $1M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 38,879 | $1M | 0.2% | 2026-Q1 |
| Crescent Grove Advisors, LLC trimmed | 38,484 | $1M | 0.2% | 2026-Q1 |
| Campbell & CO Investment Adviser LLC added | 36,818 | $1M | 0.2% | 2026-Q1 |
| CREDIT AGRICOLE S A | 34,291 | $1M | 0.2% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 34,244 | $1M | 0.2% | 2026-Q1 |
| Vident Advisory, LLC added | 33,991 | $1M | 0.2% | 2026-Q1 |
| Barnett & Company, Inc. added | 33,605 | $1M | 0.2% | 2026-Q1 |
| Nicholas Wealth, LLC. trimmed | 30,973 | $1M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 30,919 | $1M | 0.2% | 2026-Q1 |
| Jump Financial, LLC trimmed | 25,907 | $965K | 0.1% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 25,415 | $946K | 0.1% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP added | 25,090 | $920K | 0.1% | 2026-Q1 |
| WINTON GROUP Ltd trimmed | 24,548 | $914K | 0.1% | 2026-Q1 |
| KESTRA PRIVATE WEALTH SERVICES, LLC trimmed | 23,866 | $889K | 0.1% | 2026-Q1 |
| Samalin Investment Counsel, LLC added | 23,664 | $881K | 0.1% | 2026-Q1 |
| BankChampaign, National Association added | 22,259 | $829K | 0.1% | 2026-Q1 |
| Walleye Capital LLC added | 21,664 | $807K | 0.1% | 2026-Q1 |
| Tidal Investments LLC added | 21,634 | $805K | 0.1% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 20,962 | $780K | 0.1% | 2026-Q1 |
| Parvin Asset Management, LLC added | 19,905 | $741K | 0.1% | 2026-Q1 |
| Dynamic Technology Lab Private Ltd added | 19,560 | $728K | 0.1% | 2026-Q1 |
| U S GLOBAL INVESTORS INC added | 18,690 | $696K | 0.1% | 2026-Q1 |
| Creative Planning added | 17,370 | $647K | 0.1% | 2026-Q1 |
| TWO SIGMA ADVISERS, LP trimmed | 631,200 | $22M | 3.2% | 2025-Q4 stale |
| Foundry Partners, LLC added | 511,215 | $12M | 1.7% | 2025-Q1 stale |
| Whitefort Capital Management, LP trimmed | 353,857 | $9M | 1.4% | 2025-Q2 stale |
| MARSHALL WACE, LLP trimmed | 173,101 | $5M | 0.8% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC added | 153,465 | $5M | 0.7% | 2025-Q3 stale |
| CANTOR FITZGERALD, L. P. | 142,922 | $4M | 0.6% | 2025-Q3 stale |
| DEUTSCHE BANK AG\ trimmed | 77,350 | $3M | 0.4% | 2025-Q4 stale |
| ARGA Investment Management, LP | 53,602 | $2M | 0.3% | 2025-Q4 stale |
| Capital Advisory Group Advisory Services, LLC added | 51,902 | $2M | 0.3% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 71,400 | $2M | 0.2% | 2025-Q1 stale |
| JANUS HENDERSON GROUP PLC trimmed | 50,780 | $1M | 0.2% | 2025-Q1 stale |
| NOVEM GROUP trimmed | 34,600 | $910K | 0.1% | 2025-Q2 stale |
| Numerai GP LLC added | 25,421 | $891K | 0.1% | 2025-Q4 stale |
| Verdad Advisers, LP new | 24,533 | $860K | 0.1% | 2025-Q4 stale |
| NewEdge Advisors, LLC added | 20,973 | $735K | 0.1% | 2025-Q4 stale |
| XTX Topco Ltd added | 22,789 | $700K | 0.1% | 2025-Q3 stale |
| WOLVERINE TRADING, LLC added | 21,089 | $652K | 0.1% | 2025-Q3 stale |
| Sanctuary Advisors, LLC | 27,600 | $631K | 0.1% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.