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Definium Therapeutics, Inc.

DFTX
Exchange
Nasdaq
Industry
Medicinal Chemicals & Botanical Products
SEC CIK
0001813814

In the last 90 days, Definium Therapeutics, Inc. insiders filed 0 open-market purchases and 1 sale; 362 institutions reported holding it in 13F filings for Q2 2026, worth $5.35B in total; Duquesne Family Office is the only superinvestor holding it.

13F holders, Q1 2026

Institutional positions in Definium Therapeutics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
248
+42 vs. Q4 2025
Shares held
78.1M
+12.8M (+19.6%) vs. Q4 2025
Total value
$1.47B
+$600.8M (+68.7%) vs. Q4 2025
New holders
69
82 more added
Sold out
27
53 more reduced

3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting DFTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 248 institutions
Q1 2021: 8 institutionsQ2 2021: 156 institutionsQ3 2021: 175 institutionsQ4 2021: 176 institutionsQ1 2022: 159 institutionsQ2 2022: 156 institutionsQ3 2022: 101 institutionsQ4 2022: 104 institutionsQ1 2023: 89 institutionsQ2 2023: 84 institutionsQ3 2023: 93 institutionsQ4 2023: 104 institutionsQ1 2024: 135 institutionsQ2 2024: 152 institutionsQ3 2024: 158 institutionsQ4 2024: 174 institutionsQ1 2025: 191 institutionsQ2 2025: 183 institutionsQ3 2025: 196 institutionsQ4 2025: 209 institutionsQ1 2026: 248 institutionsQ2 2026: 362 institutions
Value heldQ1 2026: $1.47B
Q1 2021: $932.0KQ2 2021: $131.0MQ3 2021: $104.8MQ4 2021: $72.0MQ1 2022: $53.6MQ2 2022: $15.1MQ3 2022: $20.5MQ4 2022: $11.1MQ1 2023: $12.6MQ2 2023: $13.9MQ3 2023: $12.1MQ4 2023: $17.9MQ1 2024: $327.2MQ2 2024: $299.3MQ3 2024: $281.6MQ4 2024: $288.9MQ1 2025: $240.5MQ2 2025: $271.0MQ3 2025: $468.6MQ4 2025: $908.7MQ1 2026: $1.47BQ2 2026: $5.35B
Institutions holding DFTX and their total value by quarter
QuarterHoldersValue
Q2 2026362$5.35B
Q1 2026248$1.47B
Q4 2025209$908.7M
Q3 2025196$468.6M
Q2 2025183$271.0M
Q1 2025191$240.5M
Q4 2024174$288.9M
Q3 2024158$281.6M
Q2 2024152$299.3M
Q1 2024135$327.2M
Q4 2023104$17.9M
Q3 202393$12.1M
Q2 202384$13.9M
Q1 202389$12.6M
Q4 2022104$11.1M
Q3 2022101$20.5M
Q2 2022156$15.1M
Q1 2022159$53.6M
Q4 2021176$72.0M
Q3 2021175$104.8M
Q2 2021156$131.0M
Q1 20218$932.0K

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Definium Therapeutics, Inc.; share changes are against Q4 2025.

Institutions holding DFTX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
TSFG, LLC6$00.00%00.0%Unchanged
Huntington National Bank1$10.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.1$190.00%−6−85.7%Reduced
CoreCap Advisors, LLC5$950.00%00.0%Unchanged
GWM Advisors LLC7$1250.00%−133−95.0%Reduced
Essential Partners LLC21$3970.00%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.25$4720.00%00.0%Unchanged
Rachor Investment Advisory Services, LLC25$4730.00%00.0%Unchanged
Vanguard National Trust Co27$5100.00%+27New
Robbins Farley LLC28$5300.00%00.0%Unchanged
Benson Wealth Management INC30$5670.00%+30New
Chesapeake Asset Management LLC33$6230.00%00.0%Unchanged
RMG Wealth Management LLC30$6420.00%+30New
Sofos Investments, Inc.35$6620.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC36$6800.00%00.0%Unchanged
Anfield Capital Management, LLC36$6800.00%+36New
Sunbelt Securities, Inc.44$8320.00%00.0%Unchanged
Optiver Holding B.V.49$9260.00%−74−60.2%Reduced
Louisbourg Investments Inc.52$9830.00%+52New
Activest Wealth Management66$1.25K0.00%00.0%Unchanged
MH & Associates Securities Management Corp66$1.25K0.00%00.0%Unchanged
SBI Securities Co., Ltd.98$1.85K0.00%+7+7.7%Added
NBC Securities, Inc.100$1.89K0.00%00.0%Unchanged
HighMark Wealth Management LLC100$1.89K0.00%00.0%Unchanged
MAI Capital Management103$1.95K0.00%+44+74.6%Added
Allworth Financial LP127$2.40K0.00%−21−14.2%Reduced
Sankala Group LLC141$2.56K0.00%−250−63.9%Reduced
Salem Investment Counselors Inc150$2.83K0.00%+150New
Northwestern Mutual Wealth Management Co155$2.93K0.00%−30−16.2%Reduced
Strategic Wealth Partners, Ltd.166$3.14K0.00%00.0%Unchanged
Jones Financial Companies LLLP180$3.22K0.00%+180New
Atlantic Edge Private Wealth Management, LLC193$3.65K0.00%00.0%Unchanged
Smartleaf Asset Management LLC215$3.76K0.00%+215New
Federated Hermes, Inc.207$3.91K0.00%+140+209.0%Added
Parallel Advisors, LLC232$4.40K0.00%00.0%Unchanged
Ancora Advisors, LLC251$4.74K0.00%+251New
Rothschild Investment LLC292$5.52K0.00%+5+1.7%Added
EverSource Wealth Advisors, LLC295$5.58K0.00%+41+16.1%Added
Western Pacific Wealth Management, LP333$6.29K0.01%+333New
Meeder Asset Management Inc353$6.67K0.00%+353New
NVWM, LLC416$7.86K0.00%00.0%Unchanged
Private Wealth Management Group, LLC450$8.51K0.00%+450New
SRS Capital Advisors, Inc.466$8.81K0.00%−13−2.7%Reduced
Larson Financial Group LLC535$10.1K0.00%00.0%Unchanged
Harbour Investments, Inc.556$10.5K0.00%+556New
Massmutual Trust Co FSB568$10.7K0.00%00.0%Unchanged
Farther Finance Advisors, LLC567$11.7K0.00%+110+24.1%Added
Los Angeles Capital Management LLC618$11.7K0.00%+618New
Kemnay Advisory Services Inc.806$15.2K0.00%+806New
First Horizon Corp962$18.2K0.00%+119+14.1%Added
Bullock Wealth Management Group907$18.7K0.01%−287−24.0%Reduced
Stone House Investment Management, LLC1,000$18.9K0.00%00.0%Unchanged
Opal Wealth Advisors, LLC1,101$20.8K0.00%+1,101New
GAMMA Investing LLC1,111$21.0K0.00%+81+7.9%Added
High Note Wealth, LLC1,500$28.4K0.01%00.0%Unchanged
National Bank of Canada1,708$32.3K0.00%−159−8.5%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,812$34.2K0.00%+433+31.4%Added
TD Waterhouse Canada Inc.1,802$37.1K0.00%+270+17.6%Added
Crewe Advisors LLC1,999$37.8K0.00%00.0%Unchanged
KBC Group NV2,172$41.0K0.00%+2,172New
GF Fund Management Co. Ltd.2,213$41.8K0.00%+278+14.4%Added
UBS Asset Management Americas Inc2,413$45.6K0.00%+1,519+169.9%Added
Sterling Capital Management LLC2,443$46.2K0.00%−1,472−37.6%Reduced
Advisory Services Network, LLC2,659$50.3K0.00%+2,659New
Fifth Third Bancorp3,300$62.4K0.00%00.0%Unchanged
Sound Income Strategies, LLC3,690$76.0K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd4,036$76.3K0.01%+4,021+26,806.7%Added
Mirae Asset Global Investments Co., Ltd.5,200$98.3K0.00%+5,200New
Walleye Trading LLC5,414$102.3K0.00%+1,158+27.2%Added
CWM, LLC5,600$105.8K0.00%+248+4.6%Added
Tower Research Capital LLC (TRC)7,305$138.1K0.00%+2,971+68.6%Added
Hollencrest Capital Management7,386$139.6K0.01%−130−1.7%Reduced
North Star Investment Management Corp.7,571$143.1K0.01%+870+13.0%Added
The PNC Financial Services Group, Inc.7,620$144.0K0.00%+532+7.5%Added
Ameritas Investment Partners, Inc.7,641$144.4K0.00%00.0%Unchanged
Swiss Life Asset Management Ltd17,745$187.0K0.00%+17,745New
Sharpepoint LLC10,000$189.0K0.11%−135−1.3%Reduced
King Wealth10,000$189.0K0.02%00.0%Unchanged
CIBC World Markets Inc.10,049$189.9K0.00%+10,049New
Commonwealth Equity Services, LLC10,251$193.7K0.00%−3,360−24.7%Reduced
Teacher Retirement System of Texas10,300$194.7K0.00%−1,497−12.7%Reduced
Verition Fund Management LLC10,384$196.3K0.00%−121,879−92.1%Reduced
Schonfeld Strategic Advisors LLC10,412$196.8K0.00%−20,044−65.8%Reduced
SG Americas Securities, LLC10,493$198.0K0.00%+10,493New
Advisor Group Holdings, Inc.10,559$199.6K0.00%+32+0.3%Added
Dynamic Technology Lab Private Ltd10,880$205.6K0.03%−12,084−52.6%Reduced
RPS Advisory Solutions LLC11,355$214.6K0.12%+11,355New
Chicago Partners Investment Group LLC9,307$214.8K0.00%+9,307New
Sanctuary Advisors, LLC11,466$216.7K0.00%+749+7.0%Added
Diversify Wealth Management, LLC11,000$225.4K0.00%+1,000+10.0%Added
Bank of Montreal12,136$229.4K0.00%+334+2.8%Added
Twelve Points Wealth Management LLC12,245$231.4K0.05%+1,600+15.0%Added
Cinctive Capital Management LP12,551$237.2K0.02%+12,551New
Stifel Financial Corp12,626$238.6K0.00%+12,626New
Federation des caisses Desjardins du Quebec12,644$239.0K0.00%+2,040+19.2%Added
Money Concepts Capital Corp13,000$245.7K0.01%00.0%Unchanged
Summit Trail Advisors, LLC13,000$245.7K0.00%+13,000New
Magnetar Financial LLC13,178$249.1K0.00%+13,178New
Steward Partners Investment Advisory, LLC13,240$250.2K0.00%+12,240+1,224.0%Added
Pictet Asset Management Holding SA13,295$251.3K0.00%+13,295New