Among active 13F managers last quarter, 7 opened and 33 added, while 19 reduced; the largest holder to move was Two Sigma Investments, LP (+104%). Over the last 180 days, 4 insiders sold and none bought, a net -$4.9M in open-market trades.
The legs disagree, or only one of them leans.
187 tracked 13F filers disclose a position in GSL as of the latest SEC 13F filings, a combined $504.5M in reported value. 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Two Sigma Investments, LP | 1.4M | $52.0M | ▲+104% Added · +712K sh | Q1 2026 | |
| 2 | Qube Research & Technologies Ltd | 764K | $28.4M | ▲+26% Added · +159K sh | Q1 2026 | |
| 3 | Punch & Associates Investment Management, Inc. | 761K | $28.6M | ▲+6.0% Added · +43K sh | Q2 2026 | |
| 4 | Man Group plc | 753K | $28.3M | ▲+50% Added · +251K sh | Q2 2026 | |
| 5 | Donald Smith & Co., Inc. | 741K | $27.9M | ▼−53% Reduced · −837K sh | Q2 2026 | |
| 6 | Renaissance Technologies LLC | 619K | $23.0M | ▼−11% Reduced · −75K sh | Q1 2026 | |
| 7 | Mirae Asset Global Etfs Holdings Ltd. | 377K | $14.0M | ▼−39% Reduced · −239K sh | Q1 2026 | |
| 8 | State Street Corp | 353K | $13.3M | ▼−0.2% Reduced · −626 sh | Q2 2026 | |
| 9 | Allianz Asset Management GmbH | 352K | $13.1M | ▲+3.5% Added · +12K sh | Q1 2026 | |
| 10 | First Trust Advisors LP | 341K | $12.7M | ▲New +341K sh | Q1 2026 | |
| 11 | LPL Financial LLC | 305K | $11.4M | ▲+25% Added · +61K sh | Q1 2026 | |
| 12 | Goldman Sachs Group Inc | 301K | $11.2M | ▲+76% Added · +130K sh | Q1 2026 | |
| 13 | Lazard Asset Management LLC | 295K | $11.0M | ▲+65% Added · +117K sh | Q1 2026 | |
| 14 | Lonestar Capital Management LLC | 290K | $10.9M | ▲+81% Added · +130K sh | Q2 2026 | |
| 15 | Arrowstreet Capital, Limited Partnership | 290K | $10.8M | ▲New +290K sh | Q1 2026 | |
| 16 | BlackRock, Inc. | 285K | $10.7M | ▲+3.8% Added · +10K sh | Q2 2026 | |
| 17 | Citadel Advisors LLC | 280K | $10.5M | ▲+39% Added · +79K sh | Q2 2026 | |
| 18 | Morgan Stanley | 256K | $9.5M | ▼−39% Reduced · −167K sh | Q1 2026 | |
| 19 | Tudor Investment Corp Et Al | 230K | $8.7M | ▼−14% Reduced · −37K sh | Q2 2026 | |
| 20 | D. E. Shaw & Co., Inc. | 225K | $8.4M | ▲+213% Added · +153K sh | Q1 2026 | |
| 21 | Charles Schwab Investment Management Inc | 224K | $8.3M | ▼−5.5% Reduced · −13K sh | Q1 2026 | |
| 22 | Sei Investments Co | 201K | $7.5M | ▲+52% Added · +69K sh | Q1 2026 | |
| 23 | UBS Group AG | 200K | $7.5M | ▲+305% Added · +151K sh | Q1 2026 | |
| 24 | Trexquant Investment LP | 187K | $7.0M | ▲+66% Added · +74K sh | Q2 2026 | |
| 25 | Jane Street Group, LLC | 164K | $6.1M | ▲+892% Added · +148K 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.
Last quarter, 7 funds opened a new position in GSL and 33 added to an existing one, while 19 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Microsoft CorpMSFT | 103 funds | $52.6B |
| Nvidia CorpNVDA | 101 funds | $64.8B |
| Meta Platforms Inc-Class AMETA | 101 funds | $20.6B |
| Amazon.com IncAMZN | 100 funds | $43.4B |
| Alphabet Inc-CL AGOOGL | 98 funds | $37.4B |
| JPMorgan Chase & CoJPM | 98 funds | $14.0B |
| Costco Wholesale CorpCOST | 98 funds | $7.6B |
| Apple IncAAPL | 97 funds | $54.0B |
| Broadcom IncAVGO | 97 funds | $31.7B |
| Visa Inc-Class A SharesV | 97 funds | $10.5B |
| Micron Technology IncMU | 95 funds | $12.8B |
| Eli Lilly & CoLLY | 94 funds | $13.8B |
Ranked by how many of GSL's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in GSL.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 27, 2026 | Psaropoulos Anastasios | Chief Financial Officer | Sell (S) | 48K | $2.2M |
| Aug 26, 2026 | Psaropoulos Anastasios | Chief Financial Officer | Sell (S) | 2K | $75K |
| Aug 26, 2026 | Lister Thomas Arthur | Chief Executive Officer | Sell (S) | 30K | $1.3M |
| Jul 14, 2026 | Neugeborn Yoram | Director | Sell (S) | 3K | $123K |
| Apr 7, 2026 | Giannopoulos Georgios | Chief Compliance Officer | Sell (S) | 8K | $296K |
| Mar 25, 2026 | Psaropoulos Anastasios | Chief Financial Officer | Sell (S) | 23K | $904K |
| Jun 29, 2009 | Integrated Core Strategies (Us) Llc | 10% Owner | Sell (S) 2 lots, same day | 11K | $20K |
| Jun 26, 2009 | Integrated Core Strategies (Us) Llc | 10% Owner | Sell (S) | 600 | $1K |
| Jun 15, 2009 | Englander Israel A | Insider | Sell (S) 2 lots, same day | 3K | $6K |
| Jun 8, 2009 | Integrated Core Strategies (Us) Llc | 10% Owner | Sell (S) | 5K | $10K |
| Jun 5, 2009 | Integrated Core Strategies (Us) Llc | 10% Owner | Sell (S) 3 lots, same day | 21K | $47K |
| Jun 4, 2009 | Integrated Core Strategies (Us) Llc | 10% Owner | Sell (S) 4 lots, same day | 10K | $22K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 51 | 32 | – |
Insiders Form 4 open-market | 0 | 4 | -$4.9M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for GSL
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/GSL/capital-change-brief"
Use Arkolith's capital_change_brief for GSL. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
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.