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DFTX · Definium Therapeutics, Inc.

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$45.40 -0.42 (-0.92%) At close · Aug 20
Market Cap
$6.05B
Shares
134.37M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 366
Total Value: $5,621,143,434
Total Shares: 119,497,128

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 366 13F filers · Δ vs Mar 31, 2026
Top Holder
9.4%
Dec 2025 → Jun 2026 · range 9.4% – 58.1%
−1.2 pts
Top 5
30.3%
Dec 2025 → Jun 2026 · range 30.3% – 99.7%
−2.1 pts
Top 10
46.3%
Dec 2025 → Jun 2026 · range 46.3% – 100.0%
−0.2 pts
HHI
306
Dec 2025 → Jun 2026 · range 306 – 4,233
Broadly held−32

Quarterly Activity

vs Mar 31, 2026
New
151
Increased
121
Decreased
62
Sold Out
35
Unchanged
32
Holder count: +116
Institutional value: +272.2%
Shares held: +49.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 385
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1813814 CUSIP 24477V105 13F (30d) 346 filings 342 filers Visit website Investor relations