SNDXSyndax Pharmaceuticals, Inc.

$16.99+15% 1Y

Who owns SNDX

240 institutions reported holding SNDX for 2026Q2, together 122% of the company, fewer than the 245 a quarter earlier.

240

Institutions reporting a position · as of 2026Q2 · down from 245 the quarter before

Shares held by institutions
108.1M

Shares held by institutions · 122% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.36B

Reported value · at Jun 30, 2026 prices, not today's

Opened vs closed
37 / 41

Opened vs closed · new positions against positions exited in the latest quarter

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
42
New positions
37
Positions exited
41
Added to
89
Reduced
72
Shares sold shortsettled Sep 15, 2026
20.7M
Short interestof shares outstanding
23%
Days to coverat the average daily volume
14.7
Change in the short positionsince the Aug 31, 2026 count
−4.7%
Institutional ownership by quarter, 2016Q1 to 2026Q2
QuarterFilersSharesReported value
2026Q2240108.1M$2.36B
2026Q124599.4M$2.32B
2025Q422799.9M$2.10B
2025Q3226101.1M$1.56B
2025Q2214101.7M$953M
2025Q1216101.0M$1.25B
2024Q421498.0M$1.30B
2024Q320989.0M$1.71B
2024Q219587.4M$1.79B
2024Q118890.3M$2.15B
2023Q417788.7M$1.92B
2023Q317471.0M$1.03B
2023Q216670.7M$1.48B
2023Q116373.0M$1.54B
2022Q415971.4M$1.82B
2022Q313859.9M$1.44B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.9.0Mn/a$197M
Kynam Capital Management, LP8.1Mn/a$176M
VANGUARD GROUP INC6.6Mn/a$144M
GOLDMAN SACHS GROUP INC5.9Mn/a$128M
STATE STREET CORP5.7Mn/a$124M
BANK OF AMERICA CORP /DE/4.0Mn/a$88M
DEERFIELD MANAGEMENT CO /NY3.8Mn/a$83M
Eversept Partners, LP2.8Mn/a$61M
GEODE CAPITAL MANAGEMENT LLC2.6Mn/a$56M
Hood River Capital Management LLC2.6Mn/a$56M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202620.7M23%14.7
Aug 31, 202621.7M25%19.6
Aug 14, 202622.9M26%15.0
Jul 31, 202622.7M26%18.6
Jul 15, 202620.8M24%9.8
Jun 30, 202621.8M25%8.6
Jun 15, 202619.9M22%9.1
May 29, 202616.6M19%16.0
May 15, 202621.7M25%10.5
Apr 30, 202619.9M23%12.7
Apr 15, 202621.0M24%15.2
Mar 31, 202620.7M23%13.6

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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