# DEFINIUM THERAPEUTICS INC COM SHS

DEFINIUM THERAPEUTICS INC COM SHS is a security (CUSIP 24477V105) tracked across SEC portfolio filings. 293 institutional managers reported $2.0B on Form 13F as of 2026-06-30; 15 registered fund positions totaling $65.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: DEFINIUM THERAPEUTICS INC
- Class: COM SHS
- CUSIP: 24477V105
- Asset category: EC
- 13F holders: 293
- 13F value: $2.0B
- 13F period: 2026-06-30
- N-PORT fund positions: 15
- N-PORT value: $65.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 293 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $528.4M | 11,232,834 |
| STATE STREET CORP | BOSTON, MA | $144.2M | 3,065,390 |
| Driehaus Capital Management LLC | Chicago, IL | $111.7M | 5,911,889 |
| [Avoro Capital Advisors LLC](https://search.stillhousedata.com/firm/154091) | New York, NY | $94.5M | 5,000,000 |
| JANUS HENDERSON GROUP PLC | LONDON, X0 | $67.2M | 3,556,041 |
| Deep Track Capital, LP | GREENWICH, CT | $56.7M | 3,000,000 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $47.2M | 2,495,399 |
| [Octagon Capital Advisors LP](https://search.stillhousedata.com/firm/306424) | NEW YORK, NY | $46.1M | 2,440,000 |
| [COMMODORE CAPITAL LP](https://search.stillhousedata.com/firm/304370) | NEW YORK, NY | $37.8M | 2,000,000 |
| Bank of New York Mellon Corp | NEW YORK, NY | $36.6M | 777,271 |
| FMR LLC | BOSTON, MA | $34.2M | 1,809,610 |
| Trails Edge Capital Partners, LP | ATLANTA, GA | $32.9M | 1,738,110 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $31.7M | 1,675,411 |
| [ArrowMark Colorado Holdings LLC](https://search.stillhousedata.com/firm/149120) | Denver, CO | $30.1M | 1,594,717 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $28.1M | 1,333,442 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $20.7M | 2.54% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $12.3M | 5.65% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $12.2M | 6.98% |
| [Columbia Acorn Fund](https://search.stillhousedata.com/fund/S000009184) | COLUMBIA ACORN TRUST | $9.7M | 43.13% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $3.0M | 6.27% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $2.1M | 11.39% |
| ROYCE SMALL-CAP TRUST, INC. | ROYCE SMALL-CAP TRUST, INC. | $1.6M | 7.29% |
| [PGIM Jennison Blend Fund](https://search.stillhousedata.com/fund/S000004514) | Prudential Jennison Blend Fund, Inc. | $1.1M | 9.25% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $989K | 0.91% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $760K | 7.70% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $412K | 1.14% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $327K | 2.35% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $261K | 6.22% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $31K | 0.24% |
| Guggenheim Active Allocation Fund | Guggenheim Active Allocation Fund | $3K | 0.06% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/24477v105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.