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IMMUNOGEN INC
IMMUNOGEN INC. Institutional holdings reported to the SEC.
Institutional Holders (2016Q3)
Portfolio Summary: 2 Institutional holders with a total value of $168,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 62,200 167,000 99.40% Call
2 SIMPLEX TRADING, LLC 54 1,000 0.60% Call

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.