DFTX · Definium Therapeutics, Inc. · Shareholders & Ownership
$35.47
+0.38 (+1.08%)
At close · Oct 21
Return incl. dividend (before tax)
Market Cap
$4.71B
Shares
134.37M
Volume · Oct 21
1.63M
Avg daily vol (3M)
2.13M
Every disclosed holder of DFTX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns DFTX
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 114,801,381 | 85.44% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 19,565,569 | 14.56% |
| Registered funds (N-PORT, not summed) | 40,814,034 | 30.38% |
Shares outstanding: 134,366,950, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of DFTX
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,232,834 | ||
| 1.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
3,347,307 | ||
| 1.2 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,188,581 | ||
| 1.3 |
iShares Biotechnology ETF
Fund
S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
743,400 | ||
| 1.4 |
iShares U.S. Pharmaceuticals ETF
Fund
S000009417 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
336,035 | ||
| 1.5 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
239,678 | ||
| 2 |
SMALLCAP World Fund Inc
Fund
S000009599 · Registered fund · Jun 30, 2026
SMALLCAP World Fund Inc, not summed
|
7,689,008 | ||
| 3 |
Avoro Capital Advisors LLC
13F
CIK 1633313 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,188,888 | ||
| 4 |
Driehaus Capital Management LLC
13F
CIK 938206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,845,276 | ||
| 4.1 |
Driehaus Capital Management LLC
13G
CIK 938206 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
6,845,276 | ||
| 4.2 |
Driehaus Small Cap Growth Fund
Fund
S000058261 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
|
595,284 | ||
| 4.3 |
Driehaus Micro Cap Growth Fund
Fund
S000042829 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
|
308,458 | ||
| 4.4 |
Driehaus Small/Mid Cap Growth Fund
Fund
S000068519 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
|
16,942 | ||
| 4.5 |
Driehaus Global Fund
Fund
S000056073 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
|
10,152 | ||
| 5 |
Jupiter Topco LLC
13F
CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,615,645 | ||
| 6 |
Capital World Investors
13F
CIK 1422849 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,367,723 | ||
| 7 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,752,921 | ||
| 7.1 |
Fidelity Small Cap Index Fund
Fund
S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
1,422,899 | ||
| 7.2 |
Fidelity Small Cap Growth Fund
Fund
S000007193 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
|
779,396 | ||
| 7.3 |
Fidelity Stock Selector Small Cap Fund
Fund
S000005453 · Registered fund · Jul 31, 2026
Fidelity Capital Trust, not summed
|
528,300 | ||
| 7.4 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
509,162 | ||
| 7.5 |
Fidelity Blue Chip Growth Fund
Fund
S000007195 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
|
449,300 | ||
| 8 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,652,032 | ||
| 8.1 |
T. Rowe Price Health Sciences Fund, Inc.
Fund
S000002088 · Registered fund · Jun 30, 2026
T. ROWE PRICE HEALTH SCIENCES FUND, INC., not summed
|
1,287,318 | ||
| 8.2 |
T. Rowe Price New Horizons Fund, Inc.
Fund
S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
|
1,141,178 | ||
| 8.3 |
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund
S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
728,490 | ||
| 8.4 |
T. Rowe Price Health Sciences Portfolio
Fund
S000002083 · Registered fund · Jun 30, 2026
T. ROWE PRICE EQUITY SERIES, INC., not summed
|
81,159 | ||
| 8.5 |
T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund
Fund
S000052904 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
34,930 | ||
| 9 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,644,813 | ||
| 10 |
|
3,065,390 | ||
| 10.1 |
State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF
Fund
S000012321 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
281,317 | ||
| 10.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
36,100 | ||
| 10.3 |
State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF
Fund
S000036082 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
8,620 | ||
| 10.4 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
3,201 | ||
| 10.5 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
679 | ||
| 11 |
Capital International Investors
13F
CIK 1562230 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,963,410 | ||
| 12 |
Octagon Capital Advisors LP
13F
CIK 1839435 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,950,000 | ||
| 13 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,949,734 | ||
| 13.1 |
VANGUARD HEALTH CARE FUND
Fund
S000002922 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
|
740,600 | ||
| 14 |
Deep Track Capital, LP
13F
CIK 1856083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,750,000 | ||
| 15 |
Barrow Robert
Insider
CIK 1897557 · Sep 25, 2026
Director, Chief Executive Officer, issuer-wide, not summed
|
2,213,090 | ||
| 16 |
Commodore Capital LP
13F
CIK 1831942 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,000,000 | ||
| 16.1 |
Commodore Capital LP
13G
CIK 1831942 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(c), passive investor, not summed
|
2,410,000 | ||
| 17 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,803,287 | ||
| 17.1 |
AB Small Cap Growth Portfolio
Fund
S000010309 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
|
439,375 | ||
| 17.2 |
AB DISCOVERY GROWTH FUND, INC.
Fund
S000010117 · Registered fund · Jun 30, 2026
AB DISCOVERY GROWTH FUND, INC., not summed
|
356,881 | ||
| 17.3 |
Small Cap Core Portfolio
Fund
S000051867 · Registered fund · Jun 30, 2026
Bernstein Fund Inc, not summed
|
79,711 | ||
| 17.4 |
AB Small Cap Growth Portfolio
Fund
S000010435 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
|
8,500 | ||
| 17.5 |
Tax-Aware Overlay A Portfolio
Fund
S000027648 · Registered fund · Jun 30, 2026
BERNSTEIN SANFORD C FUND INC, not summed
|
2,473 | ||
| 18 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,800,852 | ||
| 18.1 |
Goldman Sachs Small Cap Growth Fund
Fund
S000061413 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
|
127,905 | ||
| 18.2 |
Goldman Sachs Small Cap Value Fund
Fund
S000009323 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
|
97,359 | ||
| 18.3 |
Goldman Sachs Small Cap Equity ETF
Fund
S000081978 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
70,926 | ||
| 18.4 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
31,411 | ||
| 18.5 |
Goldman Sachs Small Cap Growth Insights Fund
Fund
S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
21,554 | ||
| 19 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,688,587 | ||
| 20 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,648,426 | ||
| 21 |
RA CAPITAL MANAGEMENT, L.P.
13F
CIK 1346824 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,500,000 | ||
| 22 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,486,832 | ||
| 23 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,486,454 | ||
| 24 |
Siren, L.L.C.
13F
CIK 2005245 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,419,493 | ||
| 25 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,298,946 | ||
| 26 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,169,238 | ||
| 26.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
65,803 | ||
| 26.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
10,386 | ||
| 27 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,148,363 | ||
| 27.1 |
Columbia Acorn Fund
Fund
S000009184 · Registered fund · Jun 30, 2026
COLUMBIA ACORN TRUST, not summed
|
366,447 | ||
| 27.2 |
Columbia Variable Portfolio - Acorn Fund
Fund
S000008981 · Registered fund · Jun 30, 2026
COLUMBIA FUNDS VARIABLE SERIES TRUST, not summed
|
71,158 | ||
| 27.3 |
Variable Portfolio - Partners Small Cap Growth Fund
Fund
S000028697 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
|
46,031 | ||
| 27.4 |
Columbia Global Opportunities Fund
Fund
S000031367 · Registered fund · Jul 31, 2026
Columbia Funds Series Trust II, not summed
|
1,111 | ||
| 28 |
|
1,105,314 | ||
| 28.1 |
Nuveen Quant Small Cap Equity Fund
Fund
S000005386 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
341,580 | ||
| 28.2 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
238,664 | ||
| 28.3 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
166,814 | ||
| 28.4 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
120,090 | ||
| 28.5 |
Nuveen ESG Small-Cap ETF
Fund
S000055815 · Registered fund · Jul 31, 2026
NuShares ETF Trust, not summed
|
90,473 | ||
| 29 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,083,576 | ||
| 29.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
473,075 | ||
| 29.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
316,210 | ||
| 29.3 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
79,611 | ||
| 29.4 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
55,178 | ||
| 30 |
Woodline Partners LP
13F
CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,003,641 | ||
| 31 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,000,000 | ||
| 32 |
Boxer Capital Management, LLC
13F
CIK 2018299 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
998,500 | ||
| 33 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
921,818 | ||
| 34 |
Balyasny Asset Management L.P.
13F
CIK 1218710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
897,658 | ||
| 35 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
827,693 | ||
| 36 |
Holocene Advisors, LP
13F
CIK 1700574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
796,574 | ||
| 37 |
|
792,846 | ||
| 38 |
AWM Investment Company, Inc.
13F
CIK 1535264 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
784,800 | ||
| 39 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
777,271 | ||
| 40 |
Polar Capital Holdings Plc
13F
CIK 1837309 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
777,253 | ||
| 41 |
Janus Henderson Global Life Sciences Fund
Fund
S000010494 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
|
710,241 | ||
| 42 |
EVENTIDE ASSET MANAGEMENT, LLC
13F
CIK 1442891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
710,000 | ||
| 42.1 |
Eventide Healthcare & Life Sciences Fund
Fund
S000039514 · Registered fund · Jun 30, 2026
MUTUAL FUND SERIES TRUST, not summed
|
710,000 | ||
| 43 |
NEUBERGER BERMAN GROUP LLC
13F
CIK 1465109 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
687,539 | ||
| 43.1 |
Neuberger Small Cap Growth Fund
Fund
S000007839 · Registered fund · May 31, 2026
NEUBERGER BERMAN EQUITY FUNDS, not summed
|
133,760 | ||
| 44 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
682,901 | ||
| 45 |
Candriam S.C.A.
13F
CIK 1537014 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
614,425 | ||
| 46 |
ArrowMark Colorado Holdings LLC
13F
CIK 1483859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
564,069 | ||
| 46.1 |
Meridian Growth Fund
Fund
S000001462 · Registered fund · Jun 30, 2026
Meridian Fund Inc, not summed
|
254,159 | ||
| 46.2 |
Meridian Small Cap Growth Fund
Fund
S000042770 · Registered fund · Jun 30, 2026
Meridian Fund Inc, not summed
|
115,671 | ||
| 47 |
Catalio Capital Management, LP
13F
CIK 1958125 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
562,672 | ||
| 48 |
Blackstone Inc.
13F
CIK 1393818 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
561,612 | ||
| 49 |
Integral Health Asset Management, LLC
13F
CIK 1773206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
550,000 | ||
| 50 |
LORD ABBETT DEVELOPING GROWTH FUND INC
Fund
S000006834 · Registered fund · Jul 31, 2026
LORD ABBETT DEVELOPING GROWTH FUND, INC., not summed
|
538,017 |
48 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 482 holders
Create a free account to page through every holder, filter by source and group by ultimate parent.
Key facts
CIK
1813814
CUSIP
24477V105
13F (30d)
37 filings
37 filers
Visit website
Investor relations