Definium Therapeutics, Inc.

DFTXNASDAQ

$37.40-0.20 (-0.53%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Definium Therapeutics, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+206.1%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.36%	$528M	0.01%	Not reported
Avoro Capital Advisors LLC	5.35%	$338M	3.04%	Add 43.78%
Driehaus Capital Management LLC	5.09%	$322M	1.87%	Add 15.79%
Jupiter Topco LLC	4.18%	$264M	0.11%	Not reported
Capital World Investors	3.99%	$252M	0.03%	New Not reported
FMR LLC	3.54%	$224M	0.01%	Not reported
Geode Capital Management, LLC	2.71%	$171M	0.01%	Not reported
State Street Corp	2.28%	$144M	0.00%	Not reported
Capital International Investors	2.21%	$139M	0.03%	New Not reported
Octagon Capital Advisors LP	2.20%	$139M	12.47%	Add 20.90%
Wellington Management Group LLP	2.20%	$139M	0.02%	Add 126.08%
Deep Track Capital, LP	2.05%	$129M	1.88%	Reduce 8.33%
Commodore Capital LP	1.49%	$94.1M	5.60%	Not reported
Alliancebernstein L.P.	1.34%	$34.1M	0.01%	Not reported
Goldman Sachs Group Inc	1.34%	$84.7M	0.01%	Not reported
Citadel Advisors LLC	1.26%	$79.4M	0.01%	Not reported
Vanguard Portfolio Management LLC	1.23%	$77.5M	0.00%	Not reported
Ra Capital Management, L.P.	1.12%	$70.6M	0.61%	New Not reported
Vanguard Capital Management LLC	1.11%	$69.9M	0.00%	Not reported
Siren, L.L.C.	1.06%	$66.8M	1.35%	Add 54.38%
Marshall Wace, LLP	0.97%	$61.1M	0.05%	Not reported
Northern Trust Corp	0.87%	$55M	0.01%	Not reported
Ameriprise Financial Inc	0.85%	$54M	0.01%	Not reported
Nuveen, LLC	0.82%	$52M	0.01%	Not reported
Charles Schwab Investment Management Inc	0.81%	$51M	0.01%	Not reported
Woodline Partners LP	0.75%	$47.2M	0.15%	Not reported
Adage Capital Partners GP, L.L.C.	0.74%	$47M	0.07%	Reduce 13.04%
Boxer Capital Management, LLC	0.74%	$47M	3.54%	Add 66.83%
Two Sigma Investments, LP	0.69%	$43.4M	0.03%	Not reported
Balyasny Asset Management L.P.	0.67%	$42.2M	0.05%	Not reported
Vanguard Fiduciary Trust Co	0.62%	$38.9M	0.01%	Not reported
Holocene Advisors, LP	0.59%	$37.5M	0.08%	Reduce 27.05%
Bank of New York Mellon Corp	0.58%	$36.6M	0.01%	Not reported
Polar Capital Holdings Plc	0.58%	$36.6M	0.09%	New Not reported
Eventide Asset Management, LLC	0.53%	$33.4M	0.45%	Add 3.47%
Neuberger Berman Group LLC	0.51%	$32.3M	0.02%	Not reported
Qube Research & Technologies Ltd	0.51%	$32.1M	0.03%	Not reported
ArrowMark Colorado Holdings LLC	0.42%	$26.5M	1.10%	Reduce 64.63%
Catalio Capital Management, LP	0.42%	$26.5M	4.97%	Reduce 45.79%
Blackstone Inc.	0.42%	$26.4M	0.08%	Not reported
Integral Health Asset Management, LLC	0.41%	$25.9M	1.02%	Add 37.50%
Bamco Inc	0.39%	$24.5M	0.04%	New Not reported
UBS Group AG	0.37%	$23.5M	0.00%	Not reported
Point72 Asset Management, L.P.	0.36%	$22.8M	0.03%	Not reported
Ensign Peak Advisors, Inc	0.35%	$21.9M	0.04%	Reduce 14.75%
Morgan Stanley	0.34%	$21.4M	0.00%	Not reported
Great Point Partners LLC	0.32%	$20M	3.78%	New Not reported
RTW Investments, LP	0.30%	$18.8M	0.16%	Add 33.33%
Cormorant Asset Management, LP	0.30%	$18.8M	0.96%	New Not reported
Silverarc Capital Management, LLC	0.30%	$18.8M	1.96%	New Not reported

50 of 330 holders

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