The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query GSL owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/GSL"
Use Arkolith to show who owns GSL, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | DONALD SMITH & CO., INC. | $58.8M | 1.6M | ▼−24% Reduced · −510K sh | Q1 2026 | |
| 2 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | $26.7M | 718K | ▼−26% Reduced · −254K sh | Q1 2026 | |
| 3 | Man Group plc | $18.7M | 502K | ▲+458% Added · +412K sh | Q1 2026 | |
| 4 | STATE STREET CORP | $13.2M | 353K | ▲+6.5% Added · +22K sh | Q1 2026 | |
| 5 | TUDOR INVESTMENT CORP ET AL | $9.9M | 267K | ▲+26% Added · +55K sh | Q1 2026 | |
| 6 | Grantham, Mayo, Van Otterloo & Co. LLC | $7.9M | 212K | ▲10× Added · +191K sh | Q1 2026 | |
| 7 | CITADEL ADVISORS LLC | $7.5M | 201K | ▲+131% Added · +114K sh | Q1 2026 | |
| 8 | Point72 Asset Management, L.P. | $6.1M | 164K | ▼−25% Reduced · −55K sh | Q1 2026 | |
| 9 | Trexquant Investment LP | $4.2M | 113K | ▼−1.7% Reduced · −2K sh | Q1 2026 | |
| 10 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $4.2M | 112K | ▲+22% Added · +20K sh | Q1 2026 | |
| 11 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | $4.0M | 106K | ▼−49% Reduced · −101K sh | Q1 2026 | |
| 12 | Y-Intercept (Hong Kong) Ltd | $3.3M | 90K | ▲+36% Added · +24K sh | Q1 2026 | |
| 13 | Moors & Cabot, Inc. | $3.1M | 82K | ▼−0.2% Reduced · −200 sh | Q1 2026 | |
| 14 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $2.8M | 75K | ▲+1.1% Added · +803 sh | Q1 2026 | |
| 15 | Engineers Gate Manager LP | $2.1M | 55K | ▲+194% Added · +37K sh | Q1 2026 | |
| 16 | Kestra Advisory Services, LLC | $1.7M | 47K | ▼−12% Reduced · −6K sh | Q1 2026 | |
| 17 | Magnetar Financial LLC | $1.5M | 39K | ▲+126% Added · +22K sh | Q1 2026 | |
| 18 | CREDIT AGRICOLE S A | $1.3M | 34K | —Held | Q1 2026 | |
| 19 | Vident Advisory, LLC | $1.3M | 34K | ▲+6.2% Added · +2K sh | Q1 2026 | |
| 20 | WINTON GROUP Ltd | $914K | 25K | ▼−9.3% Reduced · −3K sh | Q1 2026 | |
| 21 | KESTRA PRIVATE WEALTH SERVICES, LLC | $889K | 24K | ▼−17% Reduced · −5K sh | Q1 2026 | |
| 22 | Walleye Capital LLC | $807K | 22K | ▲+433% Added · +18K sh | Q1 2026 | |
| 23 | Tidal Investments LLC | $805K | 22K | ▲+51% Added · +7K sh | Q1 2026 | |
| 24 | NewEdge Advisors, LLC | $792K | 21K | ▲+1.4% Added · +296 sh | Q1 2026 | |
| 25 | BOOTHBAY FUND MANAGEMENT, LLC | $780K | 21K | ▲+92% Added · +10K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 25, 2026 | Psaropoulos Anastasios | Chief Financial Officer | Sell (S) | 23K | $904K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 65 funds | $19.9B |
| ALPHABET INC-CL AGOOGL | 65 funds | $14.4B |
| MICRON TECHNOLOGY INCMU | 65 funds | $4.6B |
| AMAZON.COM INCAMZN | 64 funds | $16.1B |
| BROADCOM INCAVGO | 64 funds | $11.5B |
| ELI LILLY & COLLY | 64 funds | $5.3B |
| VISA INC-CLASS A SHARESV | 64 funds | $5.0B |
| COSTCO WHOLESALE CORPCOST | 64 funds | $4.3B |
| UNITEDHEALTH GROUP INCUNH | 64 funds | $3.2B |
| CITIGROUP INCC | 64 funds | $2.5B |
| BANK OF AMERICA CORPBAC | 64 funds | $2.0B |
| GENERAL MOTORS COGM | 64 funds | $1.2B |
Ranked by how many of GSL's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GSL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.