Who owns TG Therapeutics, Inc. (TGTX)
Which tracked institutional funds hold TGTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TGTX company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
103 tracked funds added or opened TGTX while 55 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
TGTX’s largest tracked holder by dollar value, BlackRock, 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 TGTX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in TGTX 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 362 tracked filers holding TGTX, 203 increased or opened the position and 163 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 TGTX 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 25
- VANGUARD PORTFOLIO MANAGEMENT LLC$275M
- VANGUARD CAPITAL MANAGEMENT LLC$219M
- VANGUARD FIDUCIARY TRUST CO$32M
- Woodline Partners LP$24M
- BRAIDWELL LP$12M
- RENAISSANCE TECHNOLOGIES LLC$11M
Full exits 21
- VANGUARD GROUP INC$466M
- EVENTIDE ASSET MANAGEMENT, LLC$21M
- TWO SIGMA ADVISERS, LP$18M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$17M
- Point72 Asset Management, L.P.$7M
- ExodusPoint Capital Management, LP$5M
Largest adds
- Soleus Capital Management, L.P.$40M
- JANE STREET GROUP, LLC$39M
- STATE STREET CORP$35M
- CITADEL ADVISORS LLC$34M
- BANK OF AMERICA CORP /DE/$23M
- DIMENSIONAL FUND ADVISORS LP$22M
Largest trims
- M&T Bank Corp$40M
- Invesco Ltd.$28M
- Man Group plc$17M
- MILLENNIUM MANAGEMENT LLC$16M
- ALGERT GLOBAL LLC$11M
- BlackRock, Inc.$11M
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 | 19,289,363 | $641M | 16.5% | 2026-Q1 |
| STATE STREET CORP added | 8,649,766 | $287M | 7.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,273,979 | $275M | 7.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 6,603,258 | $219M | 5.7% | 2026-Q1 |
| Soleus Capital Management, L.P. added | 4,029,319 | $134M | 3.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,499,916 | $116M | 3.0% | 2026-Q1 |
| Clearbridge Investments, LLC trimmed | 3,210,930 | $107M | 2.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,287,688 | $76M | 2.0% | 2026-Q1 |
| CONGRESS ASSET MANAGEMENT CO added | 2,168,081 | $72M | 1.9% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 2,041,669 | $68M | 1.8% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,922,889 | $64M | 1.6% | 2026-Q1 |
| Pictet Asset Management Holding SA added | 1,747,373 | $58M | 1.5% | 2026-Q1 |
| Hood River Capital Management LLC trimmed | 1,569,171 | $52M | 1.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,542,312 | $51M | 1.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,461,302 | $49M | 1.3% | 2026-Q1 |
| Nuveen, LLC added | 1,447,078 | $48M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,442,579 | $48M | 1.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,408,170 | $47M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,295,055 | $43M | 1.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,084,855 | $36M | 0.9% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 968,666 | $32M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 957,026 | $32M | 0.8% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 887,305 | $29M | 0.8% | 2026-Q1 |
| Woodline Partners LP added | 715,500 | $24M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 665,526 | $22M | 0.6% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 632,734 | $21M | 0.5% | 2026-Q1 |
| Invesco Ltd. trimmed | 595,857 | $20M | 0.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 590,047 | $20M | 0.5% | 2026-Q1 |
| 683 Capital Management, LLC added | 590,000 | $20M | 0.5% | 2026-Q1 |
| Occam Crest Management LP added | 577,000 | $19M | 0.5% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 544,720 | $18M | 0.5% | 2026-Q1 |
| Penn Capital Management Company, LLC added | 541,960 | $18M | 0.5% | 2026-Q1 |
| Opaleye Management Inc. | 535,000 | $18M | 0.5% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 515,328 | $17M | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 513,813 | $17M | 0.4% | 2026-Q1 |
| Assenagon Asset Management S.A. added | 510,054 | $17M | 0.4% | 2026-Q1 |
| UBS Group AG trimmed | 505,650 | $17M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board added | 487,257 | $16M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 426,379 | $14M | 0.4% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 419,609 | $14M | 0.4% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 401,846 | $13M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 385,339 | $13M | 0.3% | 2026-Q1 |
| BRAIDWELL LP new | 358,800 | $12M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 355,588 | $12M | 0.3% | 2026-Q1 |
| Man Group plc trimmed | 354,697 | $12M | 0.3% | 2026-Q1 |
| CITIGROUP INC trimmed | 353,979 | $12M | 0.3% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 340,900 | $11M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 338,769 | $11M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 332,720 | $11M | 0.3% | 2026-Q1 |
| Legal & General Group Plc trimmed | 319,703 | $11M | 0.3% | 2026-Q1 |
| Bridgewater Associates, LP trimmed | 311,415 | $10M | 0.3% | 2026-Q1 |
| Trexquant Investment LP trimmed | 311,219 | $10M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 298,400 | $10M | 0.3% | 2026-Q1 |
| FMR LLC added | 279,679 | $9M | 0.2% | 2026-Q1 |
| Marex Group plc trimmed | 278,343 | $9M | 0.2% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 271,608 | $9M | 0.2% | 2026-Q1 |
| NORGES BANK trimmed | 218,346 | $9M | 0.2% | 2026-Q1 |
| ACT CAPITAL MANAGEMENT, LLC trimmed | 249,025 | $8M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 235,477 | $8M | 0.2% | 2026-Q1 |
| DIADEMA PARTNERS LP added | 206,928 | $7M | 0.2% | 2026-Q1 |
| IFP Advisors, Inc added | 206,538 | $7M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 199,652 | $7M | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 180,285 | $6M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 176,702 | $6M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 175,750 | $6M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 170,020 | $6M | 0.1% | 2026-Q1 |
| Edgestream Partners, L.P. added | 168,351 | $6M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 186,893 | $6M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 164,500 | $5M | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 160,802 | $5M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 158,505 | $5M | 0.1% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 187,239 | $5M | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 147,975 | $5M | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 144,471 | $5M | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 150,523 | $5M | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 140,871 | $5M | 0.1% | 2026-Q1 |
| BESSEMER GROUP INC added | 132,555 | $4M | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 122,587 | $4M | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 116,657 | $4M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 116,021 | $4M | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 114,063 | $4M | 0.1% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. added | 112,684 | $4M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 15,621,420 | $466M | 12.0% | 2025-Q4 stale |
| Driehaus Capital Management LLC added | 807,833 | $29M | 0.8% | 2025-Q2 stale |
| EVENTIDE ASSET MANAGEMENT, LLC trimmed | 716,414 | $21M | 0.6% | 2025-Q4 stale |
| LORD, ABBETT & CO. LLC added | 557,966 | $20M | 0.5% | 2025-Q2 stale |
| BRAUN STACEY ASSOCIATES INC added | 518,015 | $19M | 0.5% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP added | 599,600 | $18M | 0.5% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 560,727 | $17M | 0.4% | 2025-Q4 stale |
| First Turn Management, LLC added | 447,884 | $16M | 0.4% | 2025-Q2 stale |
| Point72 Asset Management, L.P. trimmed | 231,358 | $7M | 0.2% | 2025-Q4 stale |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 183,823 | $7M | 0.2% | 2025-Q3 stale |
| Nicholas Investment Partners, LP added | 146,941 | $5M | 0.1% | 2025-Q2 stale |
| 1832 Asset Management L.P. trimmed | 144,000 | $5M | 0.1% | 2025-Q2 stale |
| CASTLEARK MANAGEMENT LLC trimmed | 140,316 | $5M | 0.1% | 2025-Q3 stale |
| Hillsdale Investment Management Inc. trimmed | 127,000 | $5M | 0.1% | 2025-Q1 stale |
| ExodusPoint Capital Management, LP added | 160,885 | $5M | 0.1% | 2025-Q4 stale |
| Global IMC LLC added | 116,293 | $5M | 0.1% | 2025-Q1 stale |
| HUSSMAN STRATEGIC ADVISORS, INC. | 126,000 | $5M | 0.1% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC trimmed | 102,548 | $4M | 0.1% | 2025-Q3 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.