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CGEMCullinan Therapeutics, Inc.

Market cap
$924.78M
as of 2026-10-23
Latest close
$14.37
as of 2026-10-23
Sector
Healthcare
as of 2026-10-24
Industry
Biotechnology
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-12-13

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Michaelson JenniferChief Scientific OfficerSep 8Sep 10M4,000$4.30$17,200166,844YesForm 4
Michaelson JenniferChief Scientific OfficerSep 8Sep 10S8,000$21.57Sale −$172,560158,844YesForm 4
Michaelson JenniferChief Scientific OfficerSep 8Sep 10M · derivative4,000$4.30$17,20078,987YesForm 4
Michaelson JenniferChief Scientific OfficerAug 13Aug 14M30,000$4.30$129,000192,844YesForm 4
Michaelson JenniferChief Scientific OfficerAug 13Aug 14S30,000$20.26Sale −$607,800162,844YesForm 4
Michaelson JenniferChief Scientific OfficerAug 13Aug 14M · derivative30,000$4.30$129,00082,987YesForm 4
Michaelson JenniferChief Scientific OfficerJul 6Jul 7M4,000$4.30$17,200170,844YesForm 4
Michaelson JenniferChief Scientific OfficerJul 6Jul 7S8,000$17.82Sale −$142,560162,844YesForm 4
Michaelson JenniferChief Scientific OfficerJul 6Jul 7M · derivative4,000$4.30$17,200112,987YesForm 4
Fenton Mary KayChief Financial OfficerJun 30Jul 2A1,541$8.60$13,253127,921NoForm 4
Sumer Jacquelyn LChief Legal OfficerJun 30Jul 2A2,470$8.60$21,242130,559NoForm 4
Doyle MittieJun 16Jun 18A · derivative21,781$13.55$295,13321,781NoForm 4
Thistle MaryJun 16Jun 18A · derivative25,319$13.55$343,07225,319NoForm 4
Allen Andrew RJun 16Jun 18A · derivative21,781$13.55$295,13321,781NoForm 4
Webster Stephen WJun 16Jun 18A · derivative25,319$13.55$343,07225,319NoForm 4
Meek David D.Jun 16Jun 18A · derivative25,319$13.55$343,07225,319NoForm 4
Rosenberg AnthonyJun 16Jun 18A · derivative25,319$13.55$343,07225,319NoForm 4
Michaelson JenniferChief Scientific OfficerMay 5May 6M4,000$4.30$17,200174,844YesForm 4
Michaelson JenniferChief Scientific OfficerMay 5May 6S7,800$14.60Sale −$113,880167,044YesForm 4
Michaelson JenniferChief Scientific OfficerMay 5May 6S200$15.58Sale −$3,116166,844YesForm 4
Michaelson JenniferChief Scientific OfficerMay 5May 6M · derivative4,000$4.30$17,200116,987YesForm 4
Michaelson JenniferChief Scientific OfficerMar 5Mar 9M4,000$4.30$17,200178,844YesForm 4
Michaelson JenniferChief Scientific OfficerMar 5Mar 9S8,000$15.68Sale −$125,440170,844YesForm 4
Michaelson JenniferChief Scientific OfficerMar 5Mar 9M · derivative4,000$4.30$17,200120,987YesForm 4
Michaelson JenniferChief Scientific OfficerFeb 25Feb 26S1,780$14.14Sale −$25,169174,844YesForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 24Feb 25S3,601$14.47Sale −$52,106128,089NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 24Feb 25S4,582$14.47Sale −$66,302159,968NoForm 4
Ahmed NadimPresident and CEOFeb 24Feb 25S13,515$14.47Sale −$195,562390,803NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 24Feb 25S3,601$14.47Sale −$52,106176,624YesForm 4
Michaelson JenniferChief Scientific OfficerFeb 23Feb 25S1,752$13.99Sale −$24,510180,225YesForm 4
Ahmed NadimPresident and CEOFeb 20Feb 23S16,381$13.62Sale −$223,109404,318NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 20Feb 23S3,742$13.62Sale −$50,966131,690NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 20Feb 23S3,742$13.62Sale −$50,966181,977YesForm 4
Michaelson JenniferChief Scientific OfficerFeb 20Feb 23M8,000$4.30$34,400189,977YesForm 4
Michaelson JenniferChief Scientific OfficerFeb 20Feb 23S8,000$14.30Sale −$114,400181,977YesForm 4
Michaelson JenniferChief Scientific OfficerFeb 20Feb 23M · derivative8,000$4.30$34,400124,987YesForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 20Feb 23S4,982$13.62Sale −$67,855164,550NoForm 4
Fenton Mary KayChief Financial OfficerFeb 20Feb 23S4,398$13.62Sale −$59,901126,380NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 18Feb 19A57,500$0.00$0185,719NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 18Feb 19A · derivative115,000$12.44$1,430,600115,000NoForm 4
Fenton Mary KayChief Financial OfficerFeb 18Feb 19A68,750$0.00$0130,778NoForm 4
Fenton Mary KayChief Financial OfficerFeb 18Feb 19A · derivative137,500$12.44$1,710,500137,500NoForm 4
Savill CorrineChief Business OfficerFeb 18Feb 19A · derivative175,000$12.44$2,177,000175,000NoForm 4
Ahmed NadimPresident and CEOFeb 18Feb 19A · derivative828,000$12.44$10,300,320828,000NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 18Feb 19A · derivative300,000$12.44$3,732,000300,000NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 18Feb 19A · derivative230,000$12.44$2,861,200230,000NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 12Feb 13S416$12.03Sale −$5,004128,219NoForm 4
Michaelson JenniferChief Scientific OfficerJan 22Jan 23S4,000$12.30Sale −$49,200128,635YesForm 4
Fenton Mary KayChief Financial OfficerDec 31, 2025Jan 5A27$6.49$17562,028NoForm 4
Ahmed NadimPresident and CEODec 23, 2025Dec 29, 2025S9,922$10.01Sale −$99,319420,699NoForm 4
Michaelson JenniferChief Scientific OfficerDec 19, 2025Dec 22, 2025S1,345$10.01Sale −$13,463132,635YesForm 4
Michaelson JenniferChief Scientific OfficerDec 18, 2025Dec 19, 2025S2,898$9.67Sale −$28,024133,980NoForm 4
Jones Jeffrey AlanChief Medical OfficerDec 18, 2025Dec 19, 2025S4,632$9.67Sale −$44,791169,532NoForm 4
Sumer Jacquelyn LChief Legal OfficerDec 18, 2025Dec 19, 2025S3,480$9.67Sale −$33,652135,432NoForm 4
Michaelson JenniferChief Scientific OfficerDec 15, 2025Dec 16, 2025S995$11.90Sale −$11,841136,878YesForm 4
Michaelson JenniferChief Scientific OfficerDec 12, 2025Dec 16, 2025S2,148$12.38Sale −$26,592137,873YesForm 4
Michaelson JenniferChief Scientific OfficerNov 24, 2025Nov 25, 2025S4,000$12.30Sale −$49,200138,004YesForm 4
Nichols WestonOct 28, 2025Oct 30, 2025P165,667$8.40Purchase +$1,391,6038,963,500NoForm 4
Lynx1 Capital Management LPOct 17, 2025Oct 21, 2025P32,217$7.84Purchase +$252,5818,797,833NoForm 4
Lynx1 Capital Management LPOct 16, 2025Oct 21, 2025P150,000$8.86Purchase +$1,329,0008,765,616NoForm 4
Lynx1 Capital Management LPOct 15, 2025Oct 21, 2025P51,500$7.94Purchase +$408,9108,615,616NoForm 4
Lynx1 Capital Management LPOct 14, 2025Oct 21, 2025P15,032$7.59Purchase +$114,0938,564,116NoForm 4
Lynx1 Capital Management LPOct 10, 2025Oct 10, 2025P277,298$7.36Purchase +$2,040,9138,549,084NoForm 4
Lynx1 Capital Management LPOct 9, 2025Oct 10, 2025P626,043$6.70Purchase +$4,194,4888,271,786NoForm 4
Lynx1 Capital Management LPOct 8, 2025Oct 10, 2025P556,300$6.46Purchase +$3,593,6987,645,743NoForm 4
Doyle MittieAug 7, 2025Aug 8, 2025A · derivative79,456$7.03$558,57679,456NoForm 4
Allen Andrew RAug 7, 2025Aug 8, 2025A · derivative79,456$7.03$558,57679,456NoForm 4
Martin Anne-MarieJun 12, 2025Jun 16, 2025A · derivative38,513$8.95$344,69138,513NoForm 4
Meek David D.Jun 12, 2025Jun 16, 2025A · derivative38,513$8.95$344,69138,513NoForm 4
Webster Stephen WJun 12, 2025Jun 16, 2025A · derivative38,513$8.95$344,69138,513NoForm 4
Rosenberg AnthonyJun 12, 2025Jun 16, 2025A · derivative38,513$8.95$344,69138,513NoForm 4
Ryan David P.Jun 12, 2025Jun 16, 2025A · derivative38,513$8.95$344,69138,513NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 25, 2025Feb 27, 2025S3,756$8.53Sale −$32,039136,895NoForm 4
Ahmed NadimPresident and CEOFeb 25, 2025Feb 27, 2025S12,529$8.53Sale −$106,872430,621NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 25, 2025Feb 27, 2025S3,756$8.53Sale −$32,039142,004NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 25, 2025Feb 27, 2025S4,895$8.53Sale −$41,754174,164NoForm 4
Fenton Mary KayChief Financial OfficerFeb 19, 2025Feb 21, 2025A60,000$0.00$060,000NoForm 4
Fenton Mary KayChief Financial OfficerFeb 19, 2025Feb 21, 2025A · derivative120,000$9.43$1,131,600120,000NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 19, 2025Feb 21, 2025A65,000$0.00$0179,059NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 19, 2025Feb 21, 2025A · derivative130,000$9.43$1,225,900130,000NoForm 4
Ahmed NadimPresident and CEOFeb 19, 2025Feb 21, 2025A180,000$0.00$0443,150NoForm 4
Ahmed NadimPresident and CEOFeb 19, 2025Feb 21, 2025A · derivative360,000$9.43$3,394,800360,000NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 19, 2025Feb 21, 2025A50,000$0.00$0140,651NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 19, 2025Feb 21, 2025A · derivative100,000$9.43$943,000100,000NoForm 4
Savill CorrineChief Business OfficerFeb 19, 2025Feb 21, 2025A37,500$0.00$0240,990NoForm 4
Savill CorrineChief Business OfficerFeb 19, 2025Feb 21, 2025A · derivative75,000$9.43$707,25075,000NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 19, 2025Feb 21, 2025A50,000$0.00$0145,760NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 19, 2025Feb 21, 2025A · derivative100,000$9.43$943,000100,000NoForm 4
Michaelson JenniferChief Scientific OfficerJan 6, 2025Jan 7, 2025S4,000$12.51Sale −$50,04095,760YesForm 4
Ahmed NadimPresident and CEODec 24, 2024Dec 27, 2024S8,400$11.87Sale −$99,708263,150NoForm 4
Sumer Jacquelyn LChief Legal OfficerDec 18, 2024Dec 20, 2024S3,482$11.41Sale −$39,73090,651NoForm 4
Jones Jeffrey AlanChief Medical OfficerDec 18, 2024Dec 20, 2024S4,632$11.41Sale −$52,851114,059NoForm 4
Michaelson JenniferChief Scientific OfficerDec 18, 2024Dec 20, 2024S4,693$11.41Sale −$53,54799,760NoForm 4
Michaelson JenniferChief Scientific OfficerDec 12, 2024Dec 16, 2024S3,489$12.52Sale −$43,682104,453NoForm 4
Michaelson JenniferChief Scientific OfficerNov 5, 2024Nov 7, 2024S8,000$15.64Sale −$125,120107,942YesForm 4
Michaelson JenniferChief Scientific OfficerSep 5, 2024Sep 9, 2024S8,000$18.09Sale −$144,720115,942YesForm 4
Thistle MaryAug 8, 2024Aug 9, 2024A · derivative25,743$16.38$421,67025,743NoForm 4
Michaelson JenniferChief Scientific OfficerJul 5, 2024Jul 9, 2024S8,000$16.33Sale −$130,640123,942YesForm 4
Michaelson JenniferChief Scientific OfficerJul 1, 2024Jul 2, 2024A2,360$9.00$21,240131,942NoForm 4
Ryan David P.Jun 26, 2024Jun 27, 2024A · derivative15,806$16.50$260,79915,806NoForm 4
Martin Anne-MarieJun 26, 2024Jun 27, 2024A · derivative15,806$16.50$260,79915,806NoForm 4
Rosenberg AnthonyJun 26, 2024Jun 27, 2024A · derivative15,806$16.50$260,79915,806NoForm 4
Webster Stephen WJun 26, 2024Jun 27, 2024A · derivative15,806$16.50$260,79915,806NoForm 4
Ebeling ThomasJun 10, 2024Jun 11, 2024M18,450$13.00$239,850186,653NoForm 4
Ebeling ThomasJun 10, 2024Jun 11, 2024M · derivative18,450$13.00$239,850not reportedNoForm 4
Ebeling ThomasMay 23, 2024May 23, 2024A84,224$4.30$362,163151,728NoForm 4
Ebeling ThomasMay 23, 2024May 23, 2024A16,475$12.73$209,727168,203NoForm 4
Ebeling ThomasMay 23, 2024May 23, 2024M · derivative84,224$4.30$362,163not reportedNoForm 4
Ebeling ThomasMay 23, 2024May 23, 2024M · derivative16,475$12.73$209,727not reportedNoForm 4
Meek David D.May 15, 2024May 16, 2024A · derivative15,618$26.72$417,31315,618NoForm 4
Michaelson JenniferChief Scientific OfficerMay 7, 2024May 8, 2024M5,606$4.30$24,106135,188YesForm 4
Michaelson JenniferChief Scientific OfficerMay 7, 2024May 8, 2024S5,606$30.06Sale −$168,516129,582YesForm 4
Michaelson JenniferChief Scientific OfficerMay 7, 2024May 8, 2024M · derivative5,606$4.30$24,106132,987YesForm 4
Michaelson JenniferChief Scientific OfficerMay 6, 2024May 8, 2024M50,000$4.30$215,000187,582YesForm 4
Michaelson JenniferChief Scientific OfficerMay 6, 2024May 8, 2024S37,723$27.82Sale −$1,049,454149,859YesForm 4
Michaelson JenniferChief Scientific OfficerMay 6, 2024May 8, 2024S20,277$28.54Sale −$578,706129,582YesForm 4
Michaelson JenniferChief Scientific OfficerMay 6, 2024May 8, 2024M · derivative50,000$4.30$215,000138,593YesForm 4
Fenton Mary KayChief Financial OfficerApr 29, 2024Apr 30, 2024A · derivative200,000$27.12$5,424,000200,000NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 22, 2024Feb 23, 2024A62,500$0.00$0118,691NoForm 4
Jones Jeffrey AlanChief Medical OfficerFeb 22, 2024Feb 23, 2024A · derivative125,000$17.54$2,192,500125,000NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 22, 2024Feb 23, 2024A50,000$0.00$0137,582NoForm 4
Michaelson JenniferChief Scientific OfficerFeb 22, 2024Feb 23, 2024A · derivative100,000$17.54$1,754,000100,000NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 22, 2024Feb 23, 2024A50,000$0.00$094,133NoForm 4
Sumer Jacquelyn LChief Legal OfficerFeb 22, 2024Feb 23, 2024A · derivative100,000$17.54$1,754,000100,000NoForm 4
Trigilio JeffreyChief Financial OfficerFeb 22, 2024Feb 23, 2024A50,000$0.00$0133,919NoForm 4
Trigilio JeffreyChief Financial OfficerFeb 22, 2024Feb 23, 2024A · derivative100,000$17.54$1,754,000100,000NoForm 4
Ahmed NadimPresident and CEOFeb 22, 2024Feb 23, 2024A160,000$0.00$0271,550NoForm 4
Ahmed NadimPresident and CEOFeb 22, 2024Feb 23, 2024A · derivative320,000$17.54$5,612,800320,000NoForm 4
Savill CorrineChief Business OfficerFeb 22, 2024Feb 23, 2024A37,500$0.00$0203,490NoForm 4
Savill CorrineChief Business OfficerFeb 22, 2024Feb 23, 2024A · derivative75,000$17.54$1,315,50075,000NoForm 4
Savill CorrineChief Business OfficerFeb 1, 2024Feb 2, 2024M40,000$4.30$172,000205,990YesForm 4
Savill CorrineChief Business OfficerFeb 1, 2024Feb 2, 2024S40,000$16.18Sale −$647,200165,990YesForm 4
Savill CorrineChief Business OfficerFeb 1, 2024Feb 2, 2024M · derivative40,000$4.30$172,00070,331YesForm 4
Savill CorrineChief Business OfficerJan 29, 2024Jan 30, 2024M40,000$4.30$172,000205,990YesForm 4
Savill CorrineChief Business OfficerJan 29, 2024Jan 30, 2024S40,000$14.09Sale −$563,600165,990YesForm 4
Savill CorrineChief Business OfficerJan 29, 2024Jan 30, 2024M · derivative13,997$4.30$60,187not reportedYesForm 4
Savill CorrineChief Business OfficerJan 29, 2024Jan 30, 2024M · derivative26,003$4.30$111,813110,331YesForm 4
Savill CorrineChief Business OfficerJan 23, 2024Jan 24, 2024M21,316$4.30$91,659187,306YesForm 4
Savill CorrineChief Business OfficerJan 23, 2024Jan 24, 2024S21,316$12.46Sale −$265,597165,990YesForm 4
Savill CorrineChief Business OfficerJan 23, 2024Jan 24, 2024M · derivative21,316$4.30$91,65913,997YesForm 4
Savill CorrineChief Business OfficerJan 22, 2024Jan 24, 2024M14,559$4.30$62,604184,674YesForm 4
Savill CorrineChief Business OfficerJan 22, 2024Jan 24, 2024S14,559$12.18Sale −$177,329170,115YesForm 4
Savill CorrineChief Business OfficerJan 22, 2024Jan 24, 2024S4,125$12.02Sale −$49,583165,990YesForm 4
Savill CorrineChief Business OfficerJan 22, 2024Jan 24, 2024M · derivative14,559$4.30$62,60435,313YesForm 4
Ahmed NadimPresident and CEODec 26, 2023Dec 27, 2023S4,272$9.24Sale −$39,473111,550NoForm 4
Michaelson JenniferChief Scientific OfficerDec 21, 2023Dec 22, 2023S1,145$8.50Sale −$9,73387,582NoForm 4
Trigilio JeffreyChief Financial OfficerDec 21, 2023Dec 22, 2023S1,920$8.50Sale −$16,32083,919NoForm 4
Sumer Jacquelyn LChief Legal OfficerDec 21, 2023Dec 22, 2023S1,400$8.50Sale −$11,90044,133NoForm 4
Jones Jeffrey AlanChief Medical OfficerDec 21, 2023Dec 22, 2023S1,860$8.50Sale −$15,81056,191NoForm 4
Trigilio JeffreyChief Financial OfficerDec 18, 2023Dec 20, 2023S398$8.22Sale −$3,27285,839NoForm 4
Sumer Jacquelyn LChief Legal OfficerDec 18, 2023Dec 20, 2023S290$8.22Sale −$2,38445,533NoForm 4
Jones Jeffrey AlanChief Medical OfficerDec 18, 2023Dec 20, 2023S386$8.22Sale −$3,17358,051NoForm 4
Michaelson JenniferChief Scientific OfficerDec 18, 2023Dec 20, 2023S238$8.22Sale −$1,95688,727NoForm 4
Michaelson JenniferChief Scientific OfficerDec 12, 2023Dec 13, 2023S1,068$7.81Sale −$8,34188,965NoForm 4
Trigilio JeffreyChief Financial OfficerDec 12, 2023Dec 13, 2023S1,926$7.81Sale −$15,04286,237NoForm 4