Massmutual Trust Co FSB

SEC CIK: 0001103653
Latest filing: Jul 2, 2026

SEC filings (opens in a new tab)

IMGN holding history

ImmunoGen, Inc. in every 13F filed by Massmutual Trust Co FSB, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IMGN overview All 13F holders of IMGN Full Q2 2026 holdings

Shares (Q2 2021): 0; Sold out in Q2 2021
Value: $0
% of portfolio: 0.0%
Quarters held: 1; Since Q1 2021

Holdings of IMGN by Massmutual Trust Co FSB, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2021	0	$0	0.0%	−69−100.0%	Sold out	Holders
Q1 2021	69	$1.00K	<0.1%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.