Historical shareholding details of Wellington Management Company LLP holdings in IGM Biosciences Inc (IGMS)

Monthly changes of Wellington Management Company LLP shareholding in IGM Biosciences Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Feb 28, 2025	Wellington Management Company Llp	17,355	0.03%

Jan 31, 2025	Wellington Management Company Llp	16,916	0.03%

Dec 31, 2024	Wellington Management Company Llp	101,055	0.17%
Dec 31, 2024	Wellington Management Company Llp	16,916	0.03%

Nov 30, 2024	Wellington Management Company Llp	16,916	0.03%

Oct 31, 2024	Wellington Management Company Llp	12,013	0.02%

Sep 30, 2024	Wellington Management Company Llp	98,339	0.17%
Sep 30, 2024	Wellington Management Company Llp	12,013	0.02%

Aug 31, 2024	Wellington Management Company Llp	12,013	0.02%

Jul 31, 2024	Wellington Management Company Llp	10,023	0.02%

Jun 30, 2024	Wellington Management Company Llp	68,965	0.12%
Jun 30, 2024	Wellington Management Company Llp	10,023	0.02%

May 31, 2024	Wellington Management Company Llp	10,023	0.02%

Mar 31, 2024	Wellington Management Company Llp	57,190	0.10%