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CGEM Insider Trading

Insider Ownership Percentage: 7.16%
Insider Buying (Last 12 Months): $13,325,286.34
Insider Selling (Last 12 Months): $444,804.13

Cullinan Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at Cullinan Therapeutics by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Cullinan Therapeutics Share Price & Price History

Current Price: $10.58
Price Change: ▲ Price Increase of +0.08 (0.76%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for CGEM up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Cullinan Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/24/2025Jennifer MichaelsonInsiderSell4,000$12.30$49,200.00138,004View SEC Filing Icon  
10/28/2025Lynx1 Capital Management LpMajor ShareholderBuy165,667$8.40$1,391,602.808,963,500View SEC Filing Icon  
10/17/2025Lynx1 Capital Management LpMajor ShareholderBuy32,217$7.84$252,581.288,797,833View SEC Filing Icon  
10/16/2025Lynx1 Capital Management LpMajor ShareholderBuy150,000$8.86$1,329,000.008,765,616View SEC Filing Icon  
10/15/2025Lynx1 Capital Management LpMajor ShareholderBuy51,500$7.94$408,910.008,615,616View SEC Filing Icon  
10/14/2025Lynx1 Capital Management LpMajor ShareholderBuy15,032$7.59$114,092.888,564,116View SEC Filing Icon  
10/10/2025Lynx1 Capital Management LpMajor ShareholderBuy277,298$7.36$2,040,913.288,549,084View SEC Filing Icon  
10/9/2025Lynx1 Capital Management LpMajor ShareholderBuy626,043$6.70$4,194,488.108,271,786View SEC Filing Icon  
10/8/2025Lynx1 Capital Management LpMajor ShareholderBuy556,300$6.46$3,593,698.007,645,743View SEC Filing Icon  
2/25/2025Jeffrey Alan JonesInsiderSell4,895$8.53$41,754.35174,164View SEC Filing Icon  
2/25/2025Nadim AhmedCEOSell12,529$8.53$106,872.37430,621View SEC Filing Icon  
1/6/2025Jennifer MichaelsonInsiderSell4,000$12.51$50,040.0095,760View SEC Filing Icon  
12/24/2024Nadim AhmedCEOSell8,400$11.87$99,708.00263,150View SEC Filing Icon  
12/18/2024Jennifer MichaelsonInsiderSell4,693$11.41$53,547.1399,760View SEC Filing Icon  
12/12/2024Jennifer MichaelsonInsiderSell3,489$12.52$43,682.28104,453View SEC Filing Icon  
11/5/2024Jennifer MichaelsonInsiderSell8,000$15.64$125,120.00107,942View SEC Filing Icon  
9/5/2024Jennifer MichaelsonInsiderSell8,000$18.09$144,720.00115,942View SEC Filing Icon  
7/5/2024Jennifer MichaelsonInsiderSell8,000$16.33$130,640.00123,942View SEC Filing Icon  
5/6/2024Jennifer MichaelsonInsiderSell58,000$28.07$1,628,060.00129,582View SEC Filing Icon  
2/1/2024Corrine SavillInsiderSell40,000$16.18$647,200.00165,990View SEC Filing Icon  
1/29/2024Corrine SavillInsiderSell40,000$14.09$563,600.00165,990View SEC Filing Icon  
1/22/2024Corrine SavillInsiderSell18,684$12.14$226,823.76165,990View SEC Filing Icon  
12/26/2023Nadim AhmedCEOSell4,272$9.24$39,473.28111,550View SEC Filing Icon  
12/21/2023Jeffrey Alan JonesInsiderSell1,860$8.50$15,810.0056,191View SEC Filing Icon  
12/21/2023Jeffrey TrigilioCFOSell1,920$8.50$16,320.0083,919View SEC Filing Icon  
12/18/2023Jeffrey Alan JonesInsiderSell386$8.22$3,172.9258,051View SEC Filing Icon  
12/18/2023Jeffrey TrigilioCFOSell398$8.22$3,271.5685,839View SEC Filing Icon  
12/12/2023Jeffrey TrigilioCFOSell1,926$7.81$15,042.0686,237View SEC Filing Icon  
12/12/2023Jennifer MichaelsonInsiderSell1,068$7.81$8,341.0888,965View SEC Filing Icon  
6/28/2023Nadim AhmedCEOSell759$11.40$8,652.60115,822View SEC Filing Icon  
6/20/2023Jeffrey Alan JonesInsiderSell387$12.94$5,007.7858,437View SEC Filing Icon  
6/20/2023Jeffrey TrigilioCFOSell399$12.94$5,163.0685,823View SEC Filing Icon  
6/12/2023Jeffrey TrigilioCFOSell319$13.11$4,182.0986,222View SEC Filing Icon  
6/12/2023Jennifer MichaelsonInsiderSell176$13.11$2,307.3690,271View SEC Filing Icon  
6/6/2023Jennifer MichaelsonInsiderSell11,900$12.31$146,489.0090,447View SEC Filing Icon  
5/23/2023Nadim AhmedCEOSell707$9.15$6,469.05116,581View SEC Filing Icon  
5/18/2023Jeffrey TrigilioCFOSell399$8.76$3,495.2486,541View SEC Filing Icon  
5/18/2023Jennifer MichaelsonInsiderSell239$8.76$2,093.6490,447View SEC Filing Icon  
5/12/2023Jeffrey TrigilioCFOSell347$8.78$3,046.6686,940View SEC Filing Icon  
5/12/2023Jennifer MichaelsonInsiderSell193$8.78$1,694.5490,686View SEC Filing Icon  
4/25/2023Nadim AhmedCEOSell716$10.59$7,582.44117,288View SEC Filing Icon  
4/18/2023Jeffrey Alan JonesInsiderSell392$10.71$4,198.3259,218View SEC Filing Icon  
4/18/2023Jeffrey TrigilioCFOSell398$10.71$4,262.5887,287View SEC Filing Icon  
4/12/2023Jeffrey TrigilioCFOSell318$10.22$3,249.9687,685View SEC Filing Icon  
4/12/2023Jennifer MichaelsonInsiderSell176$10.22$1,798.7291,117View SEC Filing Icon  
3/23/2023Nadim AhmedCEOSell706$10.51$7,420.06118,004View SEC Filing Icon  
3/20/2023Jeffrey Alan JonesInsiderSell390$11.32$4,414.8059,610View SEC Filing Icon  
3/20/2023Jeffrey TrigilioCFOSell399$11.32$4,516.6888,003View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Cullinan Therapeutics (NASDAQ:CGEM)

86.31% of Cullinan Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at CGEM by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Cullinan Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/20/2025Voss Capital LP221,473$1.31M0.1%-12.0%0.375%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd167,979$1M0.1%+289.8%0.284%Search for SEC Filing on Google Icon
11/17/2025Wexford Capital LP5,317$32K0.0%-71.6%0.009%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd152,409$0.90M0.0%+127.1%0.258%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC48,652$0.29M0.0%+201.2%0.082%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC550,471$3.26M0.0%+7.8%0.932%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.25,988$0.15M0.0%-12.9%0.044%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP45,936$0.27M0.0%+138.9%0.078%Search for SEC Filing on Google Icon
11/17/2025Citadel Advisors LLC1,984,407$11.77M0.0%-19.0%3.359%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE557,189$3.30M0.0%-15.7%0.943%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC236,092$1.40M0.0%+9.5%0.400%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.56,777$0.34M0.0%+25.4%0.096%Search for SEC Filing on Google Icon
11/14/2025Creative Planning27,376$0.16M0.0%-34.4%0.046%Search for SEC Filing on Google Icon
11/14/2025Deerfield Management Company L.P.2,927,013$17.36M0.3%-24.1%4.954%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC47,163$0.28M0.0%-55.7%0.080%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP59,672$0.35M0.0%N/A0.101%Search for SEC Filing on Google Icon
11/14/2025Caption Management LLC28,389$0.17M0.0%-107.0%0.048%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC90,318$0.54M0.0%+501.8%0.153%Search for SEC Filing on Google Icon
11/13/2025Lynx1 Capital Management LP5,766,090$34.19M6.5%+31.0%9.760%Search for SEC Filing on Google Icon
11/13/2025Kennedy Capital Management LLC46,011$0.27M0.0%+277.9%0.078%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG188,185$1.12M0.0%-39.6%0.319%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets10,671$63K0.0%-91.7%0.018%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.1,416,036$8.40M0.0%-36.4%2.397%Search for SEC Filing on Google Icon
11/13/2025Magnetar Financial LLC26,263$0.16M0.0%N/A0.044%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc15,295$91K0.0%-18.9%0.026%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.4,272$25K0.0%-89.6%0.007%Search for SEC Filing on Google Icon
11/13/2025Blue Owl Capital Holdings LP2,510,972$14.89M4.6%+5.2%4.250%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC251,110$1.49M0.0%-6.5%0.425%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP1,183,821$7.02M0.0%-7.3%2.004%Search for SEC Filing on Google Icon
11/12/2025Rafferty Asset Management LLC40,729$0.24M0.0%+3.8%0.069%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC27,905$0.17M0.0%-25.3%0.047%Search for SEC Filing on Google Icon
11/12/2025Fox Run Management L.L.C.15,528$92K0.0%N/A0.026%Search for SEC Filing on Google Icon
11/10/2025AXQ Capital LP32,669$0.19M0.1%N/A0.055%Search for SEC Filing on Google Icon
11/10/2025China Universal Asset Management Co. Ltd.10,355$61K0.0%-12.6%0.018%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.2,943,325$17.45M0.0%-2.5%4.982%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.31,868$0.19M0.0%-67.2%0.054%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers71,809$0.43M0.0%-3.1%0.122%Search for SEC Filing on Google Icon
11/6/2025ProShare Advisors LLC10,828$64K0.0%-14.5%0.018%Search for SEC Filing on Google Icon
11/3/2025AlphaQuest LLC29,019$0.17M0.0%+177.3%0.049%Search for SEC Filing on Google Icon
10/29/2025Inscription Capital LLC11,284$67K0.0%N/A0.019%Search for SEC Filing on Google Icon
10/29/2025Compass Ion Advisors LLC13,904$82K0.0%N/A0.024%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC10,466$62K0.0%N/A0.018%Search for SEC Filing on Google Icon
10/7/2025Assenagon Asset Management S.A.177,685$1.05M0.0%+1,665.9%0.301%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 8,182$62K0.0%+44.6%0.014%Search for SEC Filing on Google Icon
8/15/2025Rafferty Asset Management LLC39,226$0.30M0.0%-28.6%0.066%Search for SEC Filing on Google Icon
8/15/2025Man Group plc22,341$0.17M0.0%N/A0.038%Search for SEC Filing on Google Icon
8/15/2025Massar Capital Management LP13,418$0.10M0.1%N/A0.023%Search for SEC Filing on Google Icon
8/15/2025Engineers Gate Manager LP18,124$0.14M0.0%N/A0.031%Search for SEC Filing on Google Icon
8/15/2025Brevan Howard Capital Management LP19,227$0.15M0.0%-52.6%0.033%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE661,285$4.98M0.0%+26.1%1.119%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.45,292$0.34M0.0%N/A0.077%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC48,883$0.37M0.0%+42.1%0.083%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.29,854$0.23M0.0%-10.4%0.051%Search for SEC Filing on Google Icon
8/14/2025Nebula Research & Development LLC31,853$0.24M0.0%-26.6%0.054%Search for SEC Filing on Google Icon
8/14/2025Qube Research & Technologies Ltd67,119$0.51M0.0%N/A0.114%Search for SEC Filing on Google Icon
8/14/2025Voss Capital LP251,717$1.90M0.1%+43.8%0.426%Search for SEC Filing on Google Icon
8/13/2025Tema Etfs LLC42,692$0.32M0.1%+9.0%0.072%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP626,581$4.72M0.0%+10.3%1.061%Search for SEC Filing on Google Icon
8/13/2025Walleye Capital LLC35,199$0.27M0.0%+60.0%0.060%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.60,555$0.46M0.0%+23.0%0.103%Search for SEC Filing on Google Icon
8/13/2025Virtus Investment Advisers LLC10,506$79K0.0%-21.9%0.018%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.40,986$0.31M0.0%+39.6%0.069%Search for SEC Filing on Google Icon
8/12/2025Foresite Capital Management VI LLC594,025$4.47M2.5%-6.4%1.006%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd43,095$0.33M0.0%-3.1%0.073%Search for SEC Filing on Google Icon
8/12/2025American Century Companies Inc.125,189$0.94M0.0%+11.1%0.212%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers74,105$0.56M0.0%+3.9%0.125%Search for SEC Filing on Google Icon
8/12/2025Legal & General Group Plc18,858$0.14M0.0%-55.9%0.032%Search for SEC Filing on Google Icon
8/12/2025Franklin Resources Inc.2,228,160$16.78M0.0%+0.4%3.772%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.97,069$0.73M0.0%+122.9%0.164%Search for SEC Filing on Google Icon
8/12/2025Swiss National Bank50,300$0.38M0.0%-19.8%0.085%Search for SEC Filing on Google Icon
8/11/2025Patient Square Capital LP868,897$6.54M2.4%-1.1%1.472%Search for SEC Filing on Google Icon
8/8/2025Intech Investment Management LLC37,372$0.28M0.0%-25.1%0.063%Search for SEC Filing on Google Icon
8/8/2025Creative Planning41,723$0.31M0.0%+222.2%0.071%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC1,279,496$9.64M0.0%+3.0%2.168%Search for SEC Filing on Google Icon
8/7/2025Connor Clark & Lunn Investment Management Ltd.70,044$0.53M0.0%-9.8%0.119%Search for SEC Filing on Google Icon
8/5/2025Corton Capital Inc.21,712$0.16M0.2%+28.9%0.037%Search for SEC Filing on Google Icon
8/1/2025Y Intercept Hong Kong Ltd11,129$84K0.0%N/A0.019%Search for SEC Filing on Google Icon
7/31/2025AlphaQuest LLC10,464$79K0.0%-58.3%0.018%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.648,957$4.91M0.0%-5.3%1.100%Search for SEC Filing on Google Icon
5/29/2025Rhumbline Advisers71,338$0.54M0.0%+4.6%0.121%Search for SEC Filing on Google Icon
5/23/2025Siren L.L.C.1,193,410$9.03M0.5%-1.5%2.022%Search for SEC Filing on Google Icon
5/21/2025Acadian Asset Management LLC81,721$0.62M0.0%N/A0.138%Search for SEC Filing on Google Icon
5/19/2025Jane Street Group LLC34,396$0.26M0.0%-145.9%0.058%Search for SEC Filing on Google Icon
5/16/2025Woodline Partners LP81,741$0.62M0.0%-51.1%0.139%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.648,957$4.91M0.0%-5.3%1.100%Search for SEC Filing on Google Icon
5/16/2025Dynamic Technology Lab Private Ltd21,581$0.16M0.0%N/A0.037%Search for SEC Filing on Google Icon
5/16/2025Millennium Management LLC783,177$5.93M0.0%-6.1%1.327%Search for SEC Filing on Google Icon
5/15/2025Braidwell LP980,773$7.42M0.3%-16.6%1.662%Search for SEC Filing on Google Icon
5/15/2025Siren L.L.C.1,193,410$9.03M0.5%-1.5%2.022%Search for SEC Filing on Google Icon
5/15/2025Tema Etfs LLC39,164$0.30M0.1%+37.7%0.066%Search for SEC Filing on Google Icon
5/15/2025Trexquant Investment LP68,467$0.52M0.0%N/A0.116%Search for SEC Filing on Google Icon
5/14/2025Rafferty Asset Management LLC54,942$0.42M0.0%-38.7%0.093%Search for SEC Filing on Google Icon
5/14/2025Walleye Capital LLC22,000$0.17M0.0%-85.9%0.037%Search for SEC Filing on Google Icon
5/14/2025AlphaQuest LLC25,090$0.19M0.0%N/A0.043%Search for SEC Filing on Google Icon
5/14/2025Martingale Asset Management L P22,132$0.17M0.0%-42.6%0.038%Search for SEC Filing on Google Icon
5/14/2025EntryPoint Capital LLC24,190$0.18M0.1%+65.0%0.041%Search for SEC Filing on Google Icon
5/14/2025Voss Capital LP175,000$1.33M0.1%+43.0%0.297%Search for SEC Filing on Google Icon
5/14/2025Wellington Management Group LLP161,057$1.22M0.0%+21.1%0.273%Search for SEC Filing on Google Icon
5/13/2025Brooklyn Investment Group4,503$34K0.0%N/A0.008%Search for SEC Filing on Google Icon
5/13/2025Algert Global LLC221,430$1.68M0.0%+411.5%0.375%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Cullinan Therapeutics logo
Cullinan Therapeutics, Inc., a biopharmaceutical company, focuses on developing oncology therapies for cancer patients in the United States. The company's lead program comprises CLN-619, a monoclonal antibody that is in Phase I clinical trial for the treatment of solid tumors. Its development portfolio also includes CLN-049, a humanized bispecific antibody that is in Phase I clinical trial for the treatment of acute myeloid leukemia or myelodysplastic syndrome; CLN-418, a human bispecific immune activator that is in Phase 1 clinical trial for the treatment of multiple solid tumors; and Zipalertinib, a bioavailable small-molecule for treating patients with non-small cell lung cancer. In addition, the company's development products comprise CLN-617, a fusion protein for the treatment of solid tumors; and CLN-978, a T cell engaging antibody for the treatment relapsed/refractory B-cell non-Hodgkin lymphoma. It has license and collaboration agreement with Adimab, LLC to discover and/or optimize antibodies; Harbour BioMed US Inc. for the development, manufacturing, and commercialization of CLN-418; and co-development agreement with Taiho Pharmaceutical Co., Ltd to develop Zipalertinib. Cullinan Therapeutics, Inc. was formerly known as Cullinan Oncology, Inc. and changed its name to Cullinan Therapeutics, Inc. in April 2024. Cullinan Therapeutics, Inc. was incorporated in 2016 and is headquartered in Cambridge, Massachusetts.
Read More on Cullinan Therapeutics

Today's Range

Now: $10.58
Low: $10.08
High: $10.79

50 Day Range

MA: $8.26
Low: $5.75
High: $12.93

52 Week Range

Now: $10.58
Low: $5.68
High: $13.60

Volume

877,985 shs

Average Volume

1,211,674 shs

Market Capitalization

$625.07 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Cullinan Therapeutics?

Cullinan Therapeutics' top insider investors include:
  1. Lynx1 Capital Management Lp (Major Shareholder)
  2. Nadim Ahmed (CEO)
  3. Jeffrey Alan Jones (Insider)
  4. Corrine Savill (Insider)
  5. Jennifer Michaelson (Insider)
  6. Jeffrey Trigilio (CFO)
Learn More about top insider investors at Cullinan Therapeutics.

Who are the major institutional investors of Cullinan Therapeutics?

Cullinan Therapeutics' top institutional investors include:
  1. Lynx1 Capital Management LP — 9.76%
  2. Vanguard Group Inc. — 4.98%
  3. Deerfield Management Company L.P. — 4.95%
  4. Blue Owl Capital Holdings LP — 4.25%
  5. Citadel Advisors LLC — 3.36%
  6. Franklin Resources Inc. — 2.40%
Learn More about top institutional investors of Cullinan Therapeutics stock.

Which institutional investors are selling Cullinan Therapeutics stock?

During the last quarter, CGEM stock was sold by these institutional investors:
  1. Deerfield Management Company L.P.
  2. Franklin Resources Inc.
  3. Citadel Advisors LLC
  4. UBS Group AG
  5. BNP Paribas Financial Markets
  6. Bank of America Corp DE
  7. Dimensional Fund Advisors LP
  8. Vanguard Group Inc.
In the last year, company insiders that have sold Cullinan Therapeutics company stock include:
  1. Lynx1 Capital Management Lp (Major Shareholder)
  2. Nadim Ahmed (CEO)
  3. Jeffrey Alan Jones (Insider)
Learn More investors selling Cullinan Therapeutics stock.

Which institutional investors are buying Cullinan Therapeutics stock?

During the last quarter, CGEM stock was bought by institutional investors including:
  1. Lynx1 Capital Management LP
  2. Caption Management LLC
  3. Assenagon Asset Management S.A.
  4. Blue Owl Capital Holdings LP
  5. XTX Topco Ltd
  6. Qube Research & Technologies Ltd
  7. Squarepoint Ops LLC
  8. Two Sigma Investments LP