Who owns TMDX
Which tracked institutional funds hold TMDX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TMDX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
TMDX’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 TMDX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in TMDX 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 2026-Q1 and 2026-Q2, we do not read how tracked institutions changed their TMDX positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. 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
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 5,596,549 | $372M | 16.9% | 2026-Q2 |
| FMR LLC added | 5,133,328 | $341M | 15.5% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,933,989 | $128M | 5.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,497,600 | $99M | 4.5% | 2026-Q2 |
| STATE STREET CORP added | 1,420,421 | $94M | 4.3% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 910,495 | $60M | 2.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 894,913 | $59M | 2.7% | 2026-Q2 |
| Hood River Capital Management LLC added | 751,133 | $50M | 2.3% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 610,107 | $41M | 1.8% | 2026-Q2 |
| BRAIDWELL LP added | 609,715 | $40M | 1.8% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 559,771 | $37M | 1.7% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 558,824 | $37M | 1.7% | 2026-Q2 |
| EVENTIDE ASSET MANAGEMENT, LLC added | 548,874 | $36M | 1.7% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 515,973 | $34M | 1.6% | 2026-Q2 |
| EMERALD ADVISERS, LLC added | 490,491 | $33M | 1.5% | 2026-Q2 |
| UBS Group AG trimmed | 488,058 | $32M | 1.5% | 2026-Q2 |
| MORGAN STANLEY trimmed | 405,112 | $27M | 1.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 398,250 | $26M | 1.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 394,979 | $26M | 1.2% | 2026-Q2 |
| CITIGROUP INC added | 386,066 | $26M | 1.2% | 2026-Q2 |
| Capital World Investors added | 384,671 | $26M | 1.2% | 2026-Q2 |
| NORTHERN TRUST CORP added | 368,860 | $24M | 1.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 328,666 | $22M | 1.0% | 2026-Q2 |
| WASATCH ADVISORS LP trimmed | 308,434 | $20M | 0.9% | 2026-Q2 |
| ZEVENBERGEN CAPITAL INVESTMENTS LLC added | 308,391 | $20M | 0.9% | 2026-Q2 |
| EMERALD MUTUAL FUND ADVISERS TRUST added | 302,074 | $20M | 0.9% | 2026-Q2 |
| BAILLIE GIFFORD & CO trimmed | 267,935 | $18M | 0.8% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 260,218 | $17M | 0.8% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 257,001 | $17M | 0.8% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 255,398 | $17M | 0.8% | 2026-Q2 |
| Tidal Investments LLC added | 251,196 | $17M | 0.8% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 248,312 | $16M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 245,680 | $16M | 0.7% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 240,867 | $16M | 0.7% | 2026-Q2 |
| BARCLAYS PLC added | 237,615 | $16M | 0.7% | 2026-Q2 |
| CONGRESS ASSET MANAGEMENT CO new | 227,834 | $15M | 0.7% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 217,031 | $14M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 193,752 | $13M | 0.6% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 192,594 | $13M | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 192,269 | $13M | 0.6% | 2026-Q2 |
| FirstWave Capital Management LLC added | 191,240 | $13M | 0.6% | 2026-Q2 |
| Davidson Kempner Capital Management LP added | 166,900 | $11M | 0.5% | 2026-Q2 |
| FRONTIER CAPITAL MANAGEMENT CO LLC trimmed | 150,162 | $10M | 0.5% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 118,746 | $8M | 0.4% | 2026-Q2 |
| OPPENHEIMER & CO INC trimmed | 110,752 | $7M | 0.3% | 2026-Q2 |
| RENAISSANCE GROUP LLC added | 108,157 | $7M | 0.3% | 2026-Q2 |
| Bellevue Group AG | 101,139 | $7M | 0.3% | 2026-Q2 |
| Lagoda Investment Management, L.P. added | 97,465 | $6M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 96,337 | $6M | 0.3% | 2026-Q2 |
| Trexquant Investment LP trimmed | 93,960 | $6M | 0.3% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC added | 92,549 | $6M | 0.3% | 2026-Q2 |
| IMC-Chicago, LLC added | 90,515 | $6M | 0.3% | 2026-Q2 |
| BROWN CAPITAL MANAGEMENT LLC trimmed | 89,828 | $6M | 0.3% | 2026-Q2 |
| Portolan Capital Management, LLC added | 82,354 | $5M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 80,220 | $5M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 79,948 | $5M | 0.2% | 2026-Q2 |
| Legal & General Group Plc added | 79,582 | $5M | 0.2% | 2026-Q2 |
| Bastion Asset Management Inc. added | 79,452 | $5M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 79,310 | $5M | 0.2% | 2026-Q2 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main added | 75,090 | $5M | 0.2% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 70,830 | $5M | 0.2% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 69,601 | $5M | 0.2% | 2026-Q2 |
| PEREGRINE CAPITAL MANAGEMENT LLC added | 67,544 | $4M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 65,400 | $4M | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 64,481 | $4M | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 63,474 | $4M | 0.2% | 2026-Q2 |
| Ensign Peak Advisors, Inc trimmed | 57,381 | $4M | 0.2% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 57,154 | $4M | 0.2% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 54,036 | $4M | 0.2% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 52,828 | $4M | 0.2% | 2026-Q2 |
| F/m Investments LLC added | 51,906 | $3M | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 51,651 | $5M | 0.2% | 2026-Q2 |
| Empowered Funds, LLC added | 48,154 | $3M | 0.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 48,108 | $3M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 46,028 | $3M | 0.1% | 2026-Q2 |
| Biondo Investment Advisors, LLC trimmed | 44,155 | $3M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 42,725 | $3M | 0.1% | 2026-Q2 |
| CREDIT AGRICOLE S A trimmed | 42,647 | $3M | 0.1% | 2026-Q2 |
| TRILLIUM ASSET MANAGEMENT, LLC added | 41,577 | $3M | 0.1% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB added | 40,493 | $3M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 39,850 | $3M | 0.1% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 39,330 | $3M | 0.1% | 2026-Q2 |
| Atom Investors LP new | 36,501 | $2M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 35,545 | $2M | 0.1% | 2026-Q2 |
| Holocene Advisors, LP new | 33,754 | $2M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 32,680 | $2M | 0.1% | 2026-Q2 |
| NORGES BANK trimmed | 30,574 | $2M | 0.1% | 2026-Q2 |
| Emerald Investment Advisers, LLC added | 30,456 | $2M | 0.1% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC trimmed | 30,151 | $2M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 29,128 | $2M | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 28,808 | $2M | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 27,947 | $2M | 0.1% | 2026-Q2 |
| Taylor Frigon Capital Management LLC added | 26,908 | $2M | 0.1% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC trimmed | 26,741 | $2M | 0.1% | 2026-Q2 |
| Summit Creek Advisors LLC new | 26,707 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 26,002 | $2M | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 25,792 | $2M | 0.1% | 2026-Q2 |
| WESBANCO BANK INC new | 24,850 | $2M | 0.1% | 2026-Q2 |
| Headlands Technologies LLC added | 24,599 | $2M | 0.1% | 2026-Q2 |
| Louisiana State Employees Retirement System | 15,200 | $2M | 0.1% | 2026-Q2 |
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.