Who owns GTX (GTX)
Which tracked institutional funds hold GTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GTX 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
123 tracked funds added or opened GTX while 72 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
GTX’s largest tracked holder by dollar value, OAKTREE CAPITAL MANAGEMENT LP, sizes it at 6.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 6.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GTX 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 407 tracked filers holding GTX, 224 increased or opened the position and 153 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 GTX 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 39
- VANGUARD PORTFOLIO MANAGEMENT LLC$44M
- VANGUARD CAPITAL MANAGEMENT LLC$27M
- JANE STREET GROUP, LLC$23M
- Driehaus Capital Management LLC$22M
- VANGUARD FIDUCIARY TRUST CO$14M
- KINGDON CAPITAL MANAGEMENT, L.L.C.$13M
Full exits 23
- VANGUARD GROUP INC$60M
- NORGES BANK$29M
- Pacer Advisors, Inc.$15M
- Balyasny Asset Management L.P.$9M
- TWO SIGMA ADVISERS, LP$9M
- Brandywine Global Investment Management, LLC$9M
Largest adds
- Invesco Ltd.$41M
- FMR LLC$39M
- SCHRODER INVESTMENT MANAGEMENT GROUP$33M
- LSV ASSET MANAGEMENT$23M
- BlackRock, Inc.$21M
- D. E. Shaw & Co., Inc.$21M
Largest trims
- CYRUS CAPITAL PARTNERS, L.P.$80M
- OAKTREE CAPITAL MANAGEMENT LP$33M
- Merewether Investment Management, LP$28M
- EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC$28M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$20M
- MARSHALL WACE, LLP$15M
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 |
|---|---|---|---|---|
| OAKTREE CAPITAL MANAGEMENT LP trimmed | 14,594,816 | $265M | 7.5% | 2026-Q1 |
| BlackRock, Inc. added | 13,030,433 | $237M | 6.7% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 10,897,535 | $198M | 5.6% | 2026-Q1 |
| FMR LLC added | 8,249,463 | $150M | 4.3% | 2026-Q1 |
| LSV ASSET MANAGEMENT added | 7,255,309 | $132M | 3.8% | 2026-Q1 |
| Gates Capital Management, Inc. added | 5,935,638 | $108M | 3.1% | 2026-Q1 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 5,762,697 | $105M | 3.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 4,435,405 | $81M | 2.3% | 2026-Q1 |
| STATE STREET CORP added | 4,165,550 | $76M | 2.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 3,821,584 | $69M | 2.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,504,855 | $64M | 1.8% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 3,463,804 | $63M | 1.8% | 2026-Q1 |
| NEW SOUTH CAPITAL MANAGEMENT INC trimmed | 3,300,304 | $60M | 1.7% | 2026-Q1 |
| Invesco Ltd. added | 2,745,093 | $50M | 1.4% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC added | 2,675,133 | $49M | 1.4% | 2026-Q1 |
| Apis Capital Advisors, LLC added | 2,665,350 | $48M | 1.4% | 2026-Q1 |
| Nuveen, LLC added | 2,636,898 | $48M | 1.4% | 2026-Q1 |
| MORGAN STANLEY added | 2,553,947 | $46M | 1.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,446,309 | $44M | 1.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 2,436,009 | $44M | 1.3% | 2026-Q1 |
| Prevatt Capital Ltd trimmed | 2,250,000 | $41M | 1.2% | 2026-Q1 |
| CYRUS CAPITAL PARTNERS, L.P. trimmed | 2,159,866 | $39M | 1.1% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 2,110,972 | $37M | 1.1% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 1,952,874 | $35M | 1.0% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 1,736,341 | $32M | 0.9% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 1,526,842 | $28M | 0.8% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,475,629 | $27M | 0.8% | 2026-Q1 |
| LOOMIS SAYLES & CO L P added | 1,462,662 | $27M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,448,703 | $26M | 0.7% | 2026-Q1 |
| GW&K Investment Management, LLC trimmed | 1,425,926 | $26M | 0.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,378,774 | $25M | 0.7% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 1,339,741 | $25M | 0.7% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 1,246,015 | $23M | 0.6% | 2026-Q1 |
| Driehaus Capital Management LLC new | 1,225,056 | $22M | 0.6% | 2026-Q1 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main trimmed | 1,190,065 | $22M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,231,753 | $22M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,186,042 | $22M | 0.6% | 2026-Q1 |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC trimmed | 1,147,492 | $21M | 0.6% | 2026-Q1 |
| UBS Group AG trimmed | 1,070,420 | $19M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 1,021,593 | $19M | 0.5% | 2026-Q1 |
| Gem Investment Advisors, LLC trimmed | 1,017,293 | $18M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,013,821 | $18M | 0.5% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 897,304 | $16M | 0.5% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD trimmed | 858,601 | $16M | 0.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 841,254 | $15M | 0.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 838,532 | $15M | 0.4% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 818,918 | $15M | 0.4% | 2026-Q1 |
| LONESTAR CAPITAL MANAGEMENT LLC trimmed | 800,000 | $15M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 791,352 | $14M | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC added | 776,604 | $14M | 0.4% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 766,463 | $14M | 0.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 765,206 | $14M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 764,955 | $14M | 0.4% | 2026-Q1 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. added | 700,000 | $13M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 672,991 | $12M | 0.3% | 2026-Q1 |
| ALGERT GLOBAL LLC trimmed | 671,340 | $12M | 0.3% | 2026-Q1 |
| Trexquant Investment LP added | 667,928 | $12M | 0.3% | 2026-Q1 |
| AXIOM INVESTORS LLC /DE trimmed | 638,664 | $12M | 0.3% | 2026-Q1 |
| Aberdeen Group plc new | 619,331 | $11M | 0.3% | 2026-Q1 |
| AWH Capital, L.P. | 615,450 | $11M | 0.3% | 2026-Q1 |
| Hillsdale Investment Management Inc. added | 597,457 | $11M | 0.3% | 2026-Q1 |
| Vontobel Holding Ltd. added | 574,425 | $10M | 0.3% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 557,763 | $10M | 0.3% | 2026-Q1 |
| Four Tree Island Advisory LLC added | 543,749 | $10M | 0.3% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 536,600 | $10M | 0.3% | 2026-Q1 |
| Cambria Investment Management, L.P. trimmed | 530,671 | $10M | 0.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 520,426 | $9M | 0.3% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 518,192 | $9M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 514,923 | $9M | 0.3% | 2026-Q1 |
| CASTLEARK MANAGEMENT LLC trimmed | 488,000 | $9M | 0.3% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 477,751 | $9M | 0.2% | 2026-Q1 |
| SG Americas Securities, LLC added | 470,257 | $9M | 0.2% | 2026-Q1 |
| Man Group plc added | 454,655 | $8M | 0.2% | 2026-Q1 |
| THOMPSON SIEGEL & WALMSLEY LLC trimmed | 451,441 | $8M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 450,934 | $8M | 0.2% | 2026-Q1 |
| De Lisle Partners LLP added | 424,052 | $8M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 422,227 | $8M | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 397,030 | $7M | 0.2% | 2026-Q1 |
| SEIZERT CAPITAL PARTNERS, LLC added | 368,059 | $7M | 0.2% | 2026-Q1 |
| Janney Montgomery Scott LLC added | 364,748 | $7M | 0.2% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 360,876 | $7M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 358,266 | $7M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 341,900 | $6M | 0.2% | 2026-Q1 |
| LEUTHOLD GROUP, LLC added | 341,259 | $6M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 338,900 | $6M | 0.2% | 2026-Q1 |
| TEACHER RETIREMENT SYSTEM OF TEXAS added | 325,755 | $6M | 0.2% | 2026-Q1 |
| Allianz Asset Management GmbH added | 323,713 | $6M | 0.2% | 2026-Q1 |
| Centerbridge Partners, L.P. trimmed | 30,146,809 | $317M | 9.0% | 2025-Q2 stale |
| VANGUARD GROUP INC trimmed | 3,464,731 | $60M | 1.7% | 2025-Q4 stale |
| Sessa Capital IM, L.P. trimmed | 4,348,770 | $46M | 1.3% | 2025-Q2 stale |
| NORGES BANK added | 1,677,371 | $29M | 0.8% | 2025-Q4 stale |
| Keyframe Capital Partners, L.P. trimmed | 1,299,438 | $18M | 0.5% | 2025-Q3 stale |
| Pacer Advisors, Inc. trimmed | 849,984 | $15M | 0.4% | 2025-Q4 stale |
| Balyasny Asset Management L.P. added | 538,713 | $9M | 0.3% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 527,695 | $9M | 0.3% | 2025-Q4 stale |
| Brandywine Global Investment Management, LLC trimmed | 494,143 | $9M | 0.2% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 419,379 | $7M | 0.2% | 2025-Q4 stale |
| Holocene Advisors, LP new | 534,823 | $7M | 0.2% | 2025-Q3 stale |
| Point72 Asset Management, L.P. added | 388,022 | $7M | 0.2% | 2025-Q4 stale |
| ROYCE & ASSOCIATES LP trimmed | 559,098 | $6M | 0.2% | 2025-Q2 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.