Who owns GSAT (GSAT)
Which tracked institutional funds hold GSAT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GSAT 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
77 tracked funds added or opened GSAT while 38 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
GSAT’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes GSAT more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in GSAT 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 280 tracked filers holding GSAT, 146 increased or opened the position and 118 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 GSAT 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 21
- VANGUARD PORTFOLIO MANAGEMENT LLC$160M
- VANGUARD CAPITAL MANAGEMENT LLC$151M
- VANGUARD FIDUCIARY TRUST CO$23M
- Sculptor Capital LP$16M
- TUDOR INVESTMENT CORP ET AL$8M
- Jump Financial, LLC$5M
Full exits 6
- VANGUARD GROUP INC$282M
- Hood River Capital Management LLC$76M
- SOROS FUND MANAGEMENT LLC$5M
- JANE STREET GROUP, LLC$2M
- CANNELL CAPITAL LLC$2M
- Brevan Howard Capital Management LP$541K
Largest adds
- VAN ECK ASSOCIATES CORP$29M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$22M
- VOYA INVESTMENT MANAGEMENT LLC$22M
- CITADEL ADVISORS LLC$20M
- STATE STREET CORP$20M
- GEODE CAPITAL MANAGEMENT, LLC$18M
Largest trims
- PRICE T ROWE ASSOCIATES INC /MD/$28M
- GOLDMAN SACHS GROUP INC$10M
- MORGAN STANLEY$10M
- Defiance ETFs, LLC$10M
- PLUSTICK MANAGEMENT LLC$5M
- BARCLAYS PLC$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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 4,002,998 | $266M | 10.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,409,084 | $160M | 6.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,274,231 | $151M | 6.2% | 2026-Q1 |
| Greenhouse Funds LLLP trimmed | 2,200,968 | $146M | 6.0% | 2026-Q1 |
| STATE STREET CORP added | 1,538,221 | $102M | 4.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 1,509,322 | $100M | 4.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,452,413 | $96M | 4.0% | 2026-Q1 |
| BECK MACK & OLIVER LLC trimmed | 1,117,119 | $74M | 3.0% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP added | 974,287 | $65M | 2.7% | 2026-Q1 |
| FMR LLC trimmed | 908,282 | $60M | 2.5% | 2026-Q1 |
| ASHFORD CAPITAL MANAGEMENT INC trimmed | 907,531 | $60M | 2.5% | 2026-Q1 |
| Senvest Management, LLC added | 868,946 | $58M | 2.4% | 2026-Q1 |
| Broad Bay Capital Management, LP added | 701,540 | $47M | 1.9% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 508,666 | $34M | 1.4% | 2026-Q1 |
| UBS Group AG trimmed | 465,724 | $31M | 1.3% | 2026-Q1 |
| NORTHERN TRUST CORP added | 458,734 | $30M | 1.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 440,424 | $29M | 1.2% | 2026-Q1 |
| American Alpha Advisors, LLC | 433,332 | $29M | 1.2% | 2026-Q1 |
| Penserra Capital Management LLC trimmed | 421,556 | $28M | 1.1% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 417,227 | $28M | 1.1% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 351,682 | $23M | 1.0% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 334,700 | $22M | 0.9% | 2026-Q1 |
| SOFTBANK GROUP CORP. | 321,003 | $21M | 0.9% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 299,677 | $20M | 0.8% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 290,456 | $19M | 0.8% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 253,184 | $17M | 0.7% | 2026-Q1 |
| Sculptor Capital LP new | 237,000 | $16M | 0.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 231,690 | $15M | 0.6% | 2026-Q1 |
| Magnus Financial Group LLC added | 229,086 | $15M | 0.6% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 225,849 | $15M | 0.6% | 2026-Q1 |
| ESSEX INVESTMENT MANAGEMENT CO LLC trimmed | 165,665 | $11M | 0.5% | 2026-Q1 |
| Robertson Stephens Wealth Management, LLC added | 163,515 | $11M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 161,861 | $11M | 0.4% | 2026-Q1 |
| Anson Funds Management LP added | 158,179 | $11M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 156,889 | $10M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 148,553 | $10M | 0.4% | 2026-Q1 |
| Defiance ETFs, LLC trimmed | 142,560 | $9M | 0.4% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 126,430 | $8M | 0.3% | 2026-Q1 |
| Legal & General Group Plc trimmed | 125,189 | $8M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 115,232 | $8M | 0.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 110,523 | $7M | 0.3% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 107,998 | $7M | 0.3% | 2026-Q1 |
| Swiss National Bank | 99,903 | $7M | 0.3% | 2026-Q1 |
| 683 Capital Management, LLC trimmed | 98,000 | $7M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 102,985 | $6M | 0.3% | 2026-Q1 |
| Voleon Capital Management LP added | 89,138 | $6M | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 85,506 | $6M | 0.2% | 2026-Q1 |
| Jump Financial, LLC added | 82,554 | $5M | 0.2% | 2026-Q1 |
| Sovran Advisors, LLC | 66,500 | $5M | 0.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 81,127 | $5M | 0.2% | 2026-Q1 |
| Linden Thomas Advisory Services, LLC added | 75,479 | $5M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 71,511 | $5M | 0.2% | 2026-Q1 |
| PLUSTICK MANAGEMENT LLC trimmed | 70,000 | $5M | 0.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 69,876 | $5M | 0.2% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 66,207 | $4M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 63,125 | $4M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 60,423 | $4M | 0.2% | 2026-Q1 |
| SONA ASSET MANAGEMENT (US) LLC | 60,000 | $4M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 59,572 | $4M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 56,718 | $3M | 0.1% | 2026-Q1 |
| Informed Momentum Co LLC trimmed | 51,193 | $3M | 0.1% | 2026-Q1 |
| SIMPLEX TRADING, LLC added | 47,813 | $3M | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO added | 47,599 | $3M | 0.1% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 47,473 | $3M | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 47,212 | $3M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 46,870 | $3M | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 46,609 | $3M | 0.1% | 2026-Q1 |
| Merrion Investment Management Co, LLC | 43,681 | $3M | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 42,230 | $3M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 41,952 | $3M | 0.1% | 2026-Q1 |
| JT Stratford LLC trimmed | 38,364 | $3M | 0.1% | 2026-Q1 |
| State of New Jersey Common Pension Fund D added | 38,085 | $3M | 0.1% | 2026-Q1 |
| Vanguard Investments Australia, Ltd. new | 38,010 | $3M | 0.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 37,569 | $2M | 0.1% | 2026-Q1 |
| Man Group plc trimmed | 35,225 | $2M | 0.1% | 2026-Q1 |
| Legato Capital Management LLC trimmed | 34,657 | $2M | 0.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 34,153 | $2M | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 33,417 | $2M | 0.1% | 2026-Q1 |
| Quadrature Capital Ltd added | 32,796 | $2M | 0.1% | 2026-Q1 |
| OCCUDO QUANTITATIVE STRATEGIES LP added | 25,132 | $2M | 0.1% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 29,502 | $2M | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 29,415 | $2M | 0.1% | 2026-Q1 |
| IMC-Chicago, LLC added | 27,809 | $2M | 0.1% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 27,500 | $2M | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC trimmed | 27,421 | $2M | 0.1% | 2026-Q1 |
| AMJ Financial Wealth Management trimmed | 27,140 | $2M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 26,595 | $2M | 0.1% | 2026-Q1 |
| PNC FINANCIAL SERVICES GROUP, INC. added | 26,090 | $2M | 0.1% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 25,860 | $2M | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 24,985 | $2M | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 24,771 | $2M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 4,616,006 | $282M | 11.5% | 2025-Q4 stale |
| Hood River Capital Management LLC trimmed | 1,238,132 | $76M | 3.1% | 2025-Q4 stale |
| Long Focus Capital Management, LLC trimmed | 207,000 | $8M | 0.3% | 2025-Q3 stale |
| AGF MANAGEMENT LTD trimmed | 275,039 | $6M | 0.2% | 2025-Q1 stale |
| Focus Partners Wealth new | 12,502 | $6M | 0.2% | 2025-Q3 stale |
| SOROS FUND MANAGEMENT LLC new | 78,881 | $5M | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 91,802 | $2M | 0.1% | 2025-Q1 stale |
| JANE STREET GROUP, LLC trimmed | 30,158 | $2M | 0.1% | 2025-Q4 stale |
| CANNELL CAPITAL LLC trimmed | 29,268 | $2M | 0.1% | 2025-Q4 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.