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Institutional Ownership · SEC Form 13F

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.

280
Institutional holders
31,804,087
Shares held (tracked funds)
25.2%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed4,002,998$266M10.9%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new2,409,084$160M6.6%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new2,274,231$151M6.2%2026-Q1
Greenhouse Funds LLLP trimmed2,200,968$146M6.0%2026-Q1
STATE STREET CORP added1,538,221$102M4.2%2026-Q1
AMERICAN CENTURY COMPANIES INC added1,509,322$100M4.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,452,413$96M4.0%2026-Q1
BECK MACK & OLIVER LLC trimmed1,117,119$74M3.0%2026-Q1
VAN ECK ASSOCIATES CORP added974,287$65M2.7%2026-Q1
FMR LLC trimmed908,282$60M2.5%2026-Q1
ASHFORD CAPITAL MANAGEMENT INC trimmed907,531$60M2.5%2026-Q1
Senvest Management, LLC added868,946$58M2.4%2026-Q1
Broad Bay Capital Management, LP added701,540$47M1.9%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added508,666$34M1.4%2026-Q1
UBS Group AG trimmed465,724$31M1.3%2026-Q1
NORTHERN TRUST CORP added458,734$30M1.2%2026-Q1
CITADEL ADVISORS LLC added440,424$29M1.2%2026-Q1
American Alpha Advisors, LLC433,332$29M1.2%2026-Q1
Penserra Capital Management LLC trimmed421,556$28M1.1%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed417,227$28M1.1%2026-Q1
VANGUARD FIDUCIARY TRUST CO new351,682$23M1.0%2026-Q1
VOYA INVESTMENT MANAGEMENT LLC added334,700$22M0.9%2026-Q1
SOFTBANK GROUP CORP.321,003$21M0.9%2026-Q1
AMERIPRISE FINANCIAL INC added299,677$20M0.8%2026-Q1
BANK OF AMERICA CORP /DE/ trimmed290,456$19M0.8%2026-Q1
RAYMOND JAMES FINANCIAL INC added253,184$17M0.7%2026-Q1
Sculptor Capital LP new237,000$16M0.6%2026-Q1
DIMENSIONAL FUND ADVISORS LP added231,690$15M0.6%2026-Q1
Magnus Financial Group LLC added229,086$15M0.6%2026-Q1
GOLDMAN SACHS GROUP INC trimmed225,849$15M0.6%2026-Q1
ESSEX INVESTMENT MANAGEMENT CO LLC trimmed165,665$11M0.5%2026-Q1
Robertson Stephens Wealth Management, LLC added163,515$11M0.4%2026-Q1
Nuveen, LLC added161,861$11M0.4%2026-Q1
Anson Funds Management LP added158,179$11M0.4%2026-Q1
FIRST TRUST ADVISORS LP trimmed156,889$10M0.4%2026-Q1
Bank of New York Mellon Corp trimmed148,553$10M0.4%2026-Q1
Defiance ETFs, LLC trimmed142,560$9M0.4%2026-Q1
TUDOR INVESTMENT CORP ET AL added126,430$8M0.3%2026-Q1
Legal & General Group Plc trimmed125,189$8M0.3%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed115,232$8M0.3%2026-Q1
D. E. Shaw & Co., Inc. trimmed110,523$7M0.3%2026-Q1
NORDEA INVESTMENT MANAGEMENT AB trimmed107,998$7M0.3%2026-Q1
Swiss National Bank99,903$7M0.3%2026-Q1
683 Capital Management, LLC trimmed98,000$7M0.3%2026-Q1
JPMORGAN CHASE & CO added102,985$6M0.3%2026-Q1
Voleon Capital Management LP added89,138$6M0.2%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed85,506$6M0.2%2026-Q1
Jump Financial, LLC added82,554$5M0.2%2026-Q1
Sovran Advisors, LLC66,500$5M0.2%2026-Q1
MORGAN STANLEY trimmed81,127$5M0.2%2026-Q1
Linden Thomas Advisory Services, LLC added75,479$5M0.2%2026-Q1
WELLS FARGO & COMPANY/MN trimmed71,511$5M0.2%2026-Q1
PLUSTICK MANAGEMENT LLC trimmed70,000$5M0.2%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ trimmed69,876$5M0.2%2026-Q1
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed66,207$4M0.2%2026-Q1
Connor, Clark & Lunn Investment Management Ltd. added63,125$4M0.2%2026-Q1
RHUMBLINE ADVISERS trimmed60,423$4M0.2%2026-Q1
SONA ASSET MANAGEMENT (US) LLC60,000$4M0.2%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added59,572$4M0.2%2026-Q1
ALLIANCEBERNSTEIN L.P. added56,718$3M0.1%2026-Q1
Informed Momentum Co LLC trimmed51,193$3M0.1%2026-Q1
SIMPLEX TRADING, LLC added47,813$3M0.1%2026-Q1
SEI INVESTMENTS CO added47,599$3M0.1%2026-Q1
Qube Research & Technologies Ltd trimmed47,473$3M0.1%2026-Q1
VANGUARD ASSET MANAGEMENT, Ltd new47,212$3M0.1%2026-Q1
DEUTSCHE BANK AG\ added46,870$3M0.1%2026-Q1
LPL Financial LLC added46,609$3M0.1%2026-Q1
Merrion Investment Management Co, LLC43,681$3M0.1%2026-Q1
Point72 Asset Management, L.P. trimmed42,230$3M0.1%2026-Q1
PRUDENTIAL FINANCIAL INC added41,952$3M0.1%2026-Q1
JT Stratford LLC trimmed38,364$3M0.1%2026-Q1
State of New Jersey Common Pension Fund D added38,085$3M0.1%2026-Q1
Vanguard Investments Australia, Ltd. new38,010$3M0.1%2026-Q1
COMMONWEALTH EQUITY SERVICES, LLC added37,569$2M0.1%2026-Q1
Man Group plc trimmed35,225$2M0.1%2026-Q1
Legato Capital Management LLC trimmed34,657$2M0.1%2026-Q1
Invesco Ltd. trimmed34,153$2M0.1%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed33,417$2M0.1%2026-Q1
Quadrature Capital Ltd added32,796$2M0.1%2026-Q1
OCCUDO QUANTITATIVE STRATEGIES LP added25,132$2M0.1%2026-Q1
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added29,502$2M0.1%2026-Q1
MANUFACTURERS LIFE INSURANCE COMPANY, THE added29,415$2M0.1%2026-Q1
IMC-Chicago, LLC added27,809$2M0.1%2026-Q1
Verition Fund Management LLC trimmed27,500$2M0.1%2026-Q1
MetLife Investment Management, LLC trimmed27,421$2M0.1%2026-Q1
AMJ Financial Wealth Management trimmed27,140$2M0.1%2026-Q1
STATE OF WISCONSIN INVESTMENT BOARD added26,595$2M0.1%2026-Q1
PNC FINANCIAL SERVICES GROUP, INC. added26,090$2M0.1%2026-Q1
ALGERT GLOBAL LLC added25,860$2M0.1%2026-Q1
XTX Topco Ltd added24,985$2M0.1%2026-Q1
FRANKLIN RESOURCES INC added24,771$2M0.1%2026-Q1
VANGUARD GROUP INC trimmed4,616,006$282M11.5%2025-Q4 stale
Hood River Capital Management LLC trimmed1,238,132$76M3.1%2025-Q4 stale
Long Focus Capital Management, LLC trimmed207,000$8M0.3%2025-Q3 stale
AGF MANAGEMENT LTD trimmed275,039$6M0.2%2025-Q1 stale
Focus Partners Wealth new12,502$6M0.2%2025-Q3 stale
SOROS FUND MANAGEMENT LLC new78,881$5M0.2%2025-Q4 stale
Cubist Systematic Strategies, LLC added91,802$2M0.1%2025-Q1 stale
JANE STREET GROUP, LLC trimmed30,158$2M0.1%2025-Q4 stale
CANNELL CAPITAL LLC trimmed29,268$2M0.1%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.

HoldersTotal shares

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.

Learn how to read institutional ownership