# ARCELLX INC COMMON STOCK

ARCELLX INC COMMON STOCK is a security (CUSIP 03940C100) tracked across SEC portfolio filings. 178 institutional managers reported $4.9B on Form 13F as of 2026-06-30; 16 registered fund positions totaling $92.1M via N-PORT as of 2026-03-31.

## Summary

- Issuer: ARCELLX INC
- Class: COMMON STOCK
- CUSIP: 03940C100
- Asset category: EC
- 13F holders: 178
- 13F value: $4.9B
- 13F period: 2026-06-30
- N-PORT fund positions: 16
- N-PORT value: $92.1M
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 178 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Paradigm Biocapital Advisors LP](https://search.stillhousedata.com/firm/312544) | NEW YORK, NY | $663.0M | 5,774,016 |
| BlackRock, Inc. | New York, NY | $453.0M | 3,945,238 |
| [NEA Management Company, LLC](https://search.stillhousedata.com/firm/161004) | TIMONIUM, MD | $349.7M | 3,045,262 |
| Pentwater Capital Management LP | Naples, FL | $329.5M | 2,870,000 |
| [SR ONE CAPITAL MANAGEMENT, LP](https://search.stillhousedata.com/firm/306361) | WAYNE, PA | $269.4M | 2,346,630 |
| FIL Ltd | HAMILTON, D0 | $268.6M | 2,339,192 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $266.1M | 4,081,519 |
| [HBK INVESTMENTS L P](https://search.stillhousedata.com/firm/115079) | DALLAS, TX | $261.6M | 2,278,517 |
| STATE STREET CORP | BOSTON, MA | $192.4M | 1,675,895 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $156.7M | 1,312,155 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $118.1M | 1,028,666 |
| MORGAN STANLEY | NEW YORK, NY | $106.3M | 925,813 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $68.1M | 593,573 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $65.7M | 19,201 |
| [Davidson Kempner Capital Management LP](https://search.stillhousedata.com/firm/155680) | New York, NY | $64.3M | 559,644 |

## Top fund holders (N-PORT)

_Showing 15 of 16 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $55.6M | 6.82% |
| GDL Fund | GDL Fund | $8.0M | 694.62% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $7.2M | 14.84% |
| [AZL T Rowe Price Capital Appreciation Fund](https://search.stillhousedata.com/fund/S000009963) | Allianz Variable Insurance Products Trust | $4.7M | 53.52% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $3.8M | 0.64% |
| BlackRock Health Sciences Term Trust | BlackRock Health Sciences Term Trust | $3.6M | 35.32% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $3.3M | 1.08% |
| [The Gabelli ABC Fund](https://search.stillhousedata.com/fund/S000001070) | Gabelli Investor Funds Inc | $1.5M | 35.87% |
| [Bridge Builder Tax Managed Small/Mid Cap Fund](https://search.stillhousedata.com/fund/S000076295) | Bridge Builder Trust | $1.1M | 3.48% |
| BlackRock Health Sciences Trust | BlackRock Health Sciences Trust | $942K | 17.70% |
| [Comstock Capital Value Fund](https://search.stillhousedata.com/fund/S000001057) | Comstock Funds, Inc. | $804K | 782.27% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $617K | 14.71% |
| [Enterprise Mergers and Acquisitions Fund](https://search.stillhousedata.com/fund/S000017793) | Gabelli 787 Fund, Inc. | $459K | 80.62% |
| [Victory RS Small Cap Growth Equity VIP Series](https://search.stillhousedata.com/fund/S000053585) | Victory Variable Insurance Funds | $443K | 82.47% |
| [Clough Global Long/Short Fund](https://search.stillhousedata.com/fund/S000050324) | CLOUGH GLOBAL LONG/SHORT FUND | $126K | 43.39% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/03940c100.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.