Institutional shares held 65.1 Million
10.7K calls
14.4K puts
Total value of holdings $556M
$91K calls
$123K puts
Market Cap $390M
45,612,200 Shares Out.
Institutional ownership 142.7%
# of Institutions 149


Latest Institutional Activity in CGEM

Top Purchases

Q3 2025
Lynx1 Capital Management LP Shares Held: 5.77M ($49.3M)
Q3 2025
Goldman Sachs Group Inc Shares Held: 984K ($8.41M)
Q3 2025
Jane Street Group, LLC Shares Held: 301K ($2.57M)
Q3 2025
Cubist Systematic Strategies, LLC Shares Held: 222K ($1.9M)
Q3 2025
Kynam Capital Management, LP Shares Held: 2.3M ($19.7M)

Top Sells

Q3 2025
Deerfield Management Company, L.P. (Series C) Shares Held: 2.93M ($25M)
Q3 2025
Franklin Resources Inc Shares Held: 1.42M ($12.1M)
Q3 2025
Citadel Advisors LLC Shares Held: 1.98M ($17M)
Q3 2025
Marshall Wace, LLP Shares Held: 295K ($2.53M)
Q3 2025
Caption Management, LLC Shares Held: 28.4K ($243K)

About CGEM

Cullinan Oncology Inc., a biopharmaceutical company, focuses on developing a pipeline of targeted oncology and immuno-oncology therapies for cancer patients in the United States. The company's lead candidate is the CLN-081, an orally available small molecule that is in a Phase I/IIa dose escalation and expansion trial for treating patients with non-small cell lung cancer. Its preclinical products include CLN-049, a humanized bispecific antibody for the treatment of acute myeloid leukemia; CLN-619, a monoclonal antibody for the treatment of solid tumors; CLN-617, a fusion protein for the treatment of solid tumors; CLN-978, a T cell engaging antibody for B-cell malignancies; Opal, a bispecific fusion protein to block the PD-1 axis, and to activate the 4-IBB/CD137 pathway on T cells in tumors; and Jade, a cell therapy to target a novel senescence and cancer-related protein. The company has collaboration agreements with Cullinan Pearl Corp. to develop, manufacture, and commercialize CLN-081 and products containing CLN-081; and Adimab, LLC to discover and/or optimize antibodies. Cullinan Oncology, Inc. was incorporated in 2016 and is headquartered in Cambridge, Massachusetts.


Insider Transactions at CGEM

Insider Transaction List

View all
Date Insider Transaction Ownership Type Shares Traded Value / Price
View All Transactions

Last 12 Months Summary

Buy / Acquisition
2.32M Shares
From 7 Insiders
Grant, award, or other acquisition 443K shares
Open market or private purchase 1.87M shares
Sell / Disposition
57.6K Shares
From 4 Insiders
Open market or private sale 57.6K shares

Track Institutional and Insider Activities on CGEM

Follow Cullinan Oncology, Inc. and customize your updates to receive the information that matters most to you.

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells CGEM shares.

Notify only if

Insider Trading

Get notified when an Cullinan Oncology, Inc. insider buys or sells CGEM shares.

Notify only if

News

Receive news related to Cullinan Oncology, Inc.

Track Activities on CGEM