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IRONWOOD PHARMACEUTICALS INC
IRONWOOD PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2016Q3)
Portfolio Summary: 3 Institutional holders with a total value of $5,463,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 EcoR1 Capital, LLC 281,500 4,470,000 81.82% Call
2 GROUP ONE TRADING LLC 58,500 929,000 17.01% Call
3 SIMPLEX TRADING, LLC 469 64,000 1.17% 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.