# SYNDAX PHARMACEUTICALS INC COM

SYNDAX PHARMACEUTICALS INC COM is a security (CUSIP 87164F105) tracked across SEC portfolio filings. 245 institutional managers reported $2.3B on Form 13F as of 2026-06-30; 22 registered fund positions totaling $72.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: SYNDAX PHARMACEUTICALS INC
- Class: COM
- CUSIP: 87164F105
- Asset category: EC
- 13F holders: 245
- 13F value: $2.3B
- 13F period: 2026-06-30
- N-PORT fund positions: 22
- N-PORT value: $72.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 245 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $192.8M | 8,254,426 |
| [Kynam Capital Management, LP](https://search.stillhousedata.com/firm/314368) | PRINCETON, NJ | $188.1M | 8,050,959 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $130.9M | 6,230,334 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $116.7M | 4,996,787 |
| STATE STREET CORP | BOSTON, MA | $103.5M | 4,430,076 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $99.3M | 4,249,836 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | New York, NY | $88.3M | 3,779,900 |
| [Eversept Partners, LP](https://search.stillhousedata.com/firm/282358) | NEW YORK, NY | $67.4M | 2,885,622 |
| [KINGDON CAPITAL MANAGEMENT, L.L.C.](https://search.stillhousedata.com/firm/157509) | NEW YORK, NY | $58.4M | 2,500,000 |
| Hood River Capital Management LLC | PALM BEACH GARDENS, FL | $55.0M | 2,354,285 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $50.4M | 2,157,058 |
| FRANKLIN RESOURCES INC | San Mateo, CA | $50.2M | 2,150,079 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $46.4M | 1,985,547 |
| [Elmind Capital, LP](https://search.stillhousedata.com/firm/333910) | NEW YORK, NY | $43.3M | 1,855,000 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Paris, I0 | $40.5M | 1,732,541 |

## Top fund holders (N-PORT)

_Showing 15 of 22 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $22.7M | 2.78% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $8.7M | 4.94% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $8.4M | 3.84% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $7.1M | 7.03% |
| abrdn Life Sciences Investors | abrdn Life Sciences Investors | $6.7M | 119.53% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $4.0M | 29.06% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $3.2M | 6.65% |
| [Small Cap Portfolio](https://search.stillhousedata.com/fund/S000001917) | BNY MELLON VARIABLE INVESTMENT FUND | $2.8M | 89.90% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $2.1M | 11.16% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.2M | 0.20% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $1.0M | 13.42% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $979K | 0.32% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $797K | 0.48% |
| [1290 Essex Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000076802) | 1290 Funds | $701K | 62.50% |
| BlackRock Health Sciences Term Trust | BlackRock Health Sciences Term Trust | $568K | 5.61% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/87164F105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.