Type / Class
Equity / Class A common stock, $0.001 par value
Shares outstanding
162,690,355
Total 13F shares
153,913,914
Share change
+6,119,344
Total reported value
$518,845,700
Put/Call ratio
0.24%
Price per share
$3.37
Number of holders
193
Value change
+$35,929,060
Number of buys
113
Number of sells
62

Institutional Holders of IRONWOOD PHARMACEUTICALS INC - Class A common stock, $0.001 par value (IRWD) as of Q4 2025

As of 31 Dec 2025, IRONWOOD PHARMACEUTICALS INC - Class A common stock, $0.001 par value (IRWD) was held by 193 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 153,913,914 shares. The largest 10 holders included ARMISTICE CAPITAL, LLC, VANGUARD GROUP INC, Sarissa Capital Management LP, BlackRock, Inc., BANK OF AMERICA CORP /DE/, RENAISSANCE TECHNOLOGIES LLC, ACADIAN ASSET MANAGEMENT LLC, CHARLES SCHWAB INVESTMENT MANAGEMENT INC, AQR CAPITAL MANAGEMENT LLC, and MARSHALL WACE, LLP. This page lists 193 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.