Who owns 4D Molecular Therapeutics (FDMT)
Which tracked institutional funds hold FDMT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See FDMT 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.
How the tape is positioned
The tracked-fund tape on FDMT is one-sided between 2026-Q1 and 2026-Q2: 64 added or opened and 9 trimmed or exited — on balance accumulating.
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
FDMT’s largest tracked holder by dollar value, Jupiter Topco LLC, 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 conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in FDMT 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, across 152 tracked filers holding FDMT, 90 increased or opened the position and 65 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 FDMT between the 2026-Q1 and 2026-Q2 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 10
- Jupiter Topco LLC$76M
- DIADEMA PARTNERS LP$8M
- Catalio Capital Management, LP$6M
- Brevan Howard Capital Management LP$2M
- Persistent Asset Partners Ltd$2M
- Greenland Capital Management LP$961K
Full exits 5
- JANUS HENDERSON GROUP PLC$49M
- Peapod Lane Capital LLC$2M
- Exome Asset Management LLC$1M
- ADAR1 Capital Management, LLC$1M
- Simplify Asset Management Inc.$656K
Largest adds
- BlackRock, Inc.$22M
- RA CAPITAL MANAGEMENT, L.P.$20M
- Trails Edge Capital Partners, LP$18M
- GOLDMAN SACHS GROUP INC$17M
- ADAGE CAPITAL PARTNERS GP, L.L.C.$15M
- STATE STREET CORP$14M
Largest trims
- FEDERATED HERMES, INC.$10M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$995K
- Invesco Ltd.$892K
- Privium Fund Management B.V.$387K
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 |
|---|---|---|---|---|
| Jupiter Topco LLC new | 5,746,289 | $76M | 10.4% | 2026-Q2 |
| RA CAPITAL MANAGEMENT, L.P. | 5,049,779 | $67M | 9.2% | 2026-Q2 |
| BlackRock, Inc. added | 4,546,059 | $60M | 8.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 4,258,668 | $57M | 7.7% | 2026-Q2 |
| NOVO HOLDINGS A/S trimmed | 3,249,178 | $43M | 5.9% | 2026-Q2 |
| STATE STREET CORP added | 2,911,109 | $39M | 5.3% | 2026-Q2 |
| BVF INC/IL | 2,879,289 | $38M | 5.2% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 2,249,203 | $30M | 4.1% | 2026-Q2 |
| Trails Edge Capital Partners, LP added | 2,227,917 | $30M | 4.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 2,099,055 | $28M | 3.8% | 2026-Q2 |
| ARMISTICE CAPITAL, LLC | 2,000,000 | $27M | 3.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,128,466 | $15M | 2.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 1,120,674 | $15M | 2.0% | 2026-Q2 |
| Evergreen Quality Fund GP, Ltd. | 951,474 | $13M | 1.7% | 2026-Q2 |
| Parkman Healthcare Partners LLC added | 948,184 | $13M | 1.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 730,857 | $10M | 1.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 710,942 | $9M | 1.3% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 687,597 | $9M | 1.2% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 614,573 | $8M | 1.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 579,903 | $8M | 1.1% | 2026-Q2 |
| DIADEMA PARTNERS LP new | 571,107 | $8M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP added | 562,929 | $7M | 1.0% | 2026-Q2 |
| ACUTA CAPITAL PARTNERS, LLC added | 507,801 | $7M | 0.9% | 2026-Q2 |
| Nuveen, LLC trimmed | 503,071 | $7M | 0.9% | 2026-Q2 |
| MORGAN STANLEY added | 503,020 | $7M | 0.9% | 2026-Q2 |
| RTW INVESTMENTS, LP | 475,737 | $6M | 0.9% | 2026-Q2 |
| Catalio Capital Management, LP new | 471,254 | $6M | 0.9% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 407,470 | $5M | 0.7% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 402,137 | $5M | 0.7% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 339,275 | $5M | 0.6% | 2026-Q2 |
| Opaleye Management Inc. added | 334,437 | $4M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 276,238 | $4M | 0.5% | 2026-Q2 |
| Burkehill Global Management, LP | 275,000 | $4M | 0.5% | 2026-Q2 |
| UBS Group AG added | 256,673 | $3M | 0.5% | 2026-Q2 |
| Propel Bio Management, LLC trimmed | 252,654 | $3M | 0.5% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 242,349 | $3M | 0.4% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 222,416 | $3M | 0.4% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC | 202,864 | $3M | 0.4% | 2026-Q2 |
| Woodline Partners LP | 200,001 | $3M | 0.4% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 176,850 | $2M | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 152,337 | $2M | 0.3% | 2026-Q2 |
| Invesco Ltd. trimmed | 150,382 | $2M | 0.3% | 2026-Q2 |
| Perigon Wealth Management, LLC trimmed | 146,185 | $2M | 0.3% | 2026-Q2 |
| Persistent Asset Partners Ltd new | 145,585 | $2M | 0.3% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 140,200 | $2M | 0.3% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 128,464 | $2M | 0.2% | 2026-Q2 |
| FMR LLC added | 128,316 | $2M | 0.2% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 114,000 | $2M | 0.2% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 106,935 | $1M | 0.2% | 2026-Q2 |
| Privium Fund Management B.V. trimmed | 90,110 | $1M | 0.2% | 2026-Q2 |
| Assenagon Asset Management S.A. | 83,333 | $1M | 0.2% | 2026-Q2 |
| Greenland Capital Management LP new | 72,257 | $961K | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 69,481 | $924K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 69,212 | $921K | 0.1% | 2026-Q2 |
| Man Group plc added | 68,349 | $909K | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP added | 68,206 | $907K | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 67,122 | $893K | 0.1% | 2026-Q2 |
| Fisher Asset Management, LLC new | 65,751 | $874K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 59,638 | $793K | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 58,082 | $772K | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 56,252 | $748K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 55,740 | $519K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 54,869 | $730K | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC added | 53,056 | $706K | 0.1% | 2026-Q2 |
| TD Asset Management Inc new | 51,482 | $685K | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 50,281 | $669K | 0.1% | 2026-Q2 |
| Birchview Capital, LP new | 48,505 | $645K | 0.1% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 46,982 | $625K | 0.1% | 2026-Q2 |
| Rafferty Asset Management, LLC trimmed | 44,714 | $595K | 0.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 44,354 | $590K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 41,732 | $555K | 0.1% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 37,200 | $472K | 0.1% | 2026-Q2 |
| Virtus Investment Advisers, LLC added | 37,055 | $493K | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 28,574 | $380K | 0.1% | 2026-Q2 |
| Creative Planning trimmed | 28,321 | $377K | 0.1% | 2026-Q2 |
| OMERS ADMINISTRATION Corp new | 27,800 | $370K | 0.1% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 26,644 | $354K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 26,444 | $349K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC added | 26,057 | $347K | 0.0% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 25,576 | $340K | 0.0% | 2026-Q2 |
| TRUIST FINANCIAL CORP | 25,000 | $332K | 0.0% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 25,000 | $332K | 0.0% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD new | 24,700 | $329K | 0.0% | 2026-Q2 |
| Kera Capital Partners, Inc. | 24,068 | $320K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 23,825 | $317K | 0.0% | 2026-Q2 |
| Rockefeller Capital Management L.P. added | 23,729 | $316K | 0.0% | 2026-Q2 |
| Jain Global LLC trimmed | 23,537 | $313K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 23,459 | $312K | 0.0% | 2026-Q2 |
| PROFUND ADVISORS LLC trimmed | 22,699 | $302K | 0.0% | 2026-Q2 |
| MARSHALL WACE, LLP added | 21,342 | $284K | 0.0% | 2026-Q2 |
| Rangeley Capital, LLC trimmed | 20,965 | $279K | 0.0% | 2026-Q2 |
| Headlands Technologies LLC added | 19,238 | $256K | 0.0% | 2026-Q2 |
| Landing Point Financial Group, LLC trimmed | 18,500 | $246K | 0.0% | 2026-Q2 |
| Parallel Advisors, LLC | 17,887 | $238K | 0.0% | 2026-Q2 |
| SEI INVESTMENTS CO added | 16,664 | $222K | 0.0% | 2026-Q2 |
| Ballentine Partners, LLC | 16,359 | $218K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 15,084 | $201K | 0.0% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 14,899 | $198K | 0.0% | 2026-Q2 |
| AXQ CAPITAL, LP trimmed | 13,964 | $186K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 13,831 | $184K | 0.0% | 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.