Institutional shares held 100 Million
1.28M calls
1.29M puts
Total value of holdings $1.64B
$20.9M calls
$21.1M puts
Market Cap $924M
56,565,200 Shares Out.
Institutional ownership 177.21%
# of Institutions 248


Latest Institutional Activity in SNDX

Top Purchases

Q2 2025
Goldman Sachs Group Inc Shares Held: 5.8M ($94.7M)
Q2 2025
Millennium Management LLC Shares Held: 1.6M ($26.1M)
Q2 2025
Bank Of America Corp Shares Held: 3.84M ($62.7M)
Q2 2025
Qube Research & Technologies LTD Shares Held: 1.67M ($27.2M)
Q2 2025
Adage Capital Partners Gp, L.L.C. Shares Held: 1.43M ($23.4M)

Top Sells

Q2 2025
Citadel Advisors LLC Shares Held: 640K ($10.5M)
Q2 2025
Point72 Asset Management, L.P. Shares Held: 2.13M ($34.7M)
Q2 2025
Balyasny Asset Management LLC Shares Held: 126K ($2.06M)
Q2 2025
Morgan Stanley Shares Held: 849K ($13.9M)
Q2 2025
Silverarc Capital Management, LLC Shares Held: 403K ($6.58M)

About SNDX

Syndax Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops therapies for the treatment of cancer. Its lead product candidates are SNDX-5613, which is in phase 1/2 clinical trial targeting the binding interaction of Menin with the mixed lineage leukemia 1 protein for the treatment of MLL-rearranged (MLLr) and nucleophosmin 1 mutant acute myeloid leukemia (NPM1c AML); and SNDX-6352 or axatilimab, a monoclonal antibody that blocks the colony stimulating factor 1, or CSF-1 receptor for the treatment of patients with chronic graft versus host disease (cGVHD). The company is also developing Entinostat. It also has collaborative research and development agreement with National Cancer Institute; a clinical trial agreement with Eastern Cooperative Oncology Group; and a license agreement with Kyowa Hakko Kirin Co., Ltd. Syndax Pharmaceuticals, Inc. was incorporated in 2005 and is headquartered in Waltham, Massachusetts.Massachusetts.


Insider Transactions at SNDX

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
536K Shares
From 17 Insiders
Grant, award, or other acquisition 433K shares
Exercise of conversion of derivative security 71.5K shares
Open market or private purchase 29.8K shares
Other acquisition or disposition 1.23K shares
Sell / Disposition
95.9K Shares
From 4 Insiders
Open market or private sale 95.9K shares

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