Definium Therapeutics DFTX Institutional Ownership

NASDAQ DFTX

$38.50 +0.50 (+1.32%)

As of: Sep 4, 2026 · 2:24 PM EDT

Institutions by Trading Activity

359 Institutions

Increased 265 73.8%

Unchanged 31 8.6%

Reduced 63 17.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

104.70%

▲+33.03 pp QoQ

Shares Held by Institutions

115.89Mn

of 110.68Mn outstanding

▲+62.57% QoQ

Shares Outstanding

110.68Mn

-5.20Mn held outside 13F filers

Institutional Investors

359

filed 13F for Jun 2026

▲+115 vs prior quarter

Net Shares Added (QoQ)

+44.60Mn

accumulated since last quarter

Value of Holdings

$4.40Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Definium Therapeutics, Inc. (NASDAQ:DFTX) is held by 359 institutional investors per 13F filings through June 2026.

These investors collectively held 104.7% of Definium Therapeutics's outstanding shares in June 2026, up from 71.7% in March 2026.
They increased total shares held in Definium Therapeutics by 62.57% from the prior quarter, while the number of investors in DFTX stayed flat year over year.
Of these 359 holders, 265 added to their stakes in Definium Therapeutics, 63 trimmed positions, and 31 made no changes.
Institutional investors collectively held 115.89Mn shares in Definium Therapeutics as of June 2026, up by 44.6Mn shares quarter on quarter, and with no net change year over year.
BlackRock, Inc. leads ownership in DFTX with 11.23Mn shares as of June 30, 2026, equal to 10.15% of outstanding shares.
The most significant purchases of DFTX for the quarter ending June 2026 came from Jupiter Topco LLC (5.62Mn), Capital World Investors (5.37Mn), PRICE T ROWE ASSOCIATES INC /MD/ (4.58Mn), Capital International Investors (2.96Mn), FMR LLC (2.94Mn).
The largest sales of DFTX for the quarter ending June 2026 came from ArrowMark Colorado Holdings LLC (1.03Mn), Candriam S.C.A. (679.2K), MILLENNIUM MANAGEMENT LLC (580.82K), Catalio Capital Management, LP (475.31K), ORBIMED ADVISORS LLC (438.6K).
Business Quant data shows the 10 biggest positions in Definium Therapeutics as of June 2026 are held by BlackRock, Inc. (11.23Mn), Avoro Capital Advisors LLC (7.19Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (6.85Mn), Jupiter Topco LLC (5.62Mn), Capital World Investors (5.37Mn), FMR LLC (4.75Mn), PRICE T ROWE ASSOCIATES INC /MD/ (4.65Mn), GEODE CAPITAL MANAGEMENT, LLC (3.64Mn), State Street Corp (3.07Mn), Capital International Investors (2.96Mn).

Form 13F Holdings

359 Institutional Holders

Report period 30 Jun, 2026

Total shares held 115.89Mn

Of outstanding 104.70%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	11,232,834	10.15%	▲2,752,604	+32.46%	$528.39Mn
2	Avoro Capital Advisors LLC	0001633313	7,188,888	6.49%	▲2,188,888	+43.78%	$338.17Mn
3	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	6,845,276	6.18%	▲933,387	+15.79%	$322.00Mn
4	Jupiter Topco LLC	0002146052	5,615,645	5.07%	▲5,615,645	0.00%	$264.00Mn
5	Capital World Investors	0001422849	5,367,723	4.85%	▲5,367,723	0.00%	$252.50Mn
6	FMR LLC	0000315066	4,752,921	4.29%	▲2,943,311	+162.65%	$223.58Mn
7	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	4,652,032	4.20%	▲4,582,031	+6,545.67%	$218.83K
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	3,644,813	3.29%	▲1,149,414	+46.06%	$171.48Mn
9	State Street Corp	0000093751	3,065,390	2.77%	▲593,517	+24.01%	$144.20Mn
10	Capital International Investors	0001562230	2,963,410	2.68%	▲2,963,410	0.00%	$139.40Mn
11	Octagon Capital Advisors LP	0001839435	2,950,000	2.67%	▲510,000	+20.90%	$138.77Mn
12	WELLINGTON MANAGEMENT GROUP LLP	0000902219	2,949,734	2.66%	▲1,644,985	+126.08%	$138.76Mn
13	Deep Track Capital, LP	0001856083	2,750,000	2.48%	▼250,000	-8.33%	$129.36Mn
14	Commodore Capital LP	0001831942	2,000,000	1.81%	0	0.00%	$94.08Mn
15	ALLIANCEBERNSTEIN L.P.	0001109448	1,803,287	1.63%	▲1,711,584	+1,866.44%	$34.08Mn
16	Goldman Sachs Group Inc	0000886982	1,800,852	1.63%	▲125,441	+7.49%	$84.71Mn
17	CITADEL ADVISORS LLC	0001423053	1,688,587	1.53%	▲355,145	+26.63%	$79.43Mn
18	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,648,426	1.49%	▲775,761	+88.90%	$77.54Mn
19	RA CAPITAL MANAGEMENT, L.P.	0001346824	1,500,000	1.36%	▲1,500,000	0.00%	$70.56Mn
20	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,486,454	1.34%	▲389,476	+35.50%	$69.92Mn

Showing 1 to 20 of 359 holders