# CYTOMX THERAPEUTICS INC. COM

CYTOMX THERAPEUTICS INC. COM is a security (CUSIP 23284F105) tracked across SEC portfolio filings. 180 institutional managers reported $909.4M on Form 13F as of 2026-06-30; 14 registered fund positions totaling $25.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: CYTOMX THERAPEUTICS INC.
- Class: COM
- CUSIP: 23284F105
- Asset category: EC
- 13F holders: 180
- 13F value: $909.4M
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $25.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 180 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| FMR LLC | BOSTON, MA | $150.2M | 31,955,637 |
| [Kynam Capital Management, LP](https://search.stillhousedata.com/firm/314368) | PRINCETON, NJ | $70.6M | 15,013,093 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $48.0M | 10,202,785 |
| [PERCEPTIVE ADVISORS LLC](https://search.stillhousedata.com/firm/154703) | NEW YORK, NY | $47.5M | 10,098,824 |
| [VR Adviser, LLC](https://search.stillhousedata.com/firm/169288) | NEW YORK, NY | $46.9M | 9,982,124 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $37.0M | 7,875,390 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $36.1M | 8,475,584 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $27.7M | 5,406,193 |
| STATE STREET CORP | BOSTON, MA | $26.6M | 5,663,408 |
| BlackRock, Inc. | New York, NY | $24.6M | 5,228,280 |
| [BAKER BROS. ADVISORS LP](https://search.stillhousedata.com/firm/158149) | NEW YORK, NY | $23.4M | 4,975,826 |
| [Elmind Capital, LP](https://search.stillhousedata.com/firm/333910) | NEW YORK, NY | $21.4M | 4,550,000 |
| [Nextech Invest, Ltd.](https://search.stillhousedata.com/firm/322629) | Zurich, V8 | $20.9M | 4,449,932 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $19.4M | 4,138,176 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $17.2M | 3,660,190 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Advisor Health Care Fund](https://search.stillhousedata.com/fund/S000005329) | Fidelity Advisor Series VII | $10.6M | 36.54% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $9.4M | 1.15% |
| BlackRock Health Sciences Term Trust | BlackRock Health Sciences Term Trust | $1.0M | 10.02% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $857K | 6.16% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $816K | 0.37% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $777K | 1.04% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $544K | 0.09% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $431K | 0.14% |
| [Fidelity Disruptive Medicine ETF](https://search.stillhousedata.com/fund/S000079688) | Fidelity Covington Trust | $403K | 98.46% |
| Gabelli Healthcare & WellnessRx Trust | Gabelli Healthcare & WellnessRx Trust | $310K | 20.97% |
| [CORNERCAP SMALL-CAP VALUE FUND](https://search.stillhousedata.com/fund/S000004377) | CORNERCAP GROUP OF FUNDS | $116K | 9.60% |
| [Invesco NASDAQ Future Gen 200 ETF](https://search.stillhousedata.com/fund/S000077288) | Invesco Exchange-Traded Fund Trust II | $52K | 27.25% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $24K | 0.07% |
| Wellington Global Multi-Strategy Fund | Wellington Global Multi-Strategy Fund | $12K | 2.32% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/23284F105.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.