Vanguard Portfolio Management
IRWD icon

Vanguard Portfolio Management’s Ironwood Pharmaceuticals IRWD Stock Holding History

Vanguard Portfolio Management’s Portfolio IRWD Stock Details IRWD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$23.2M Sell
5,513,355
-1,168,682
-17% -$4.5M ﹤0.01% 1937
2026
Q1 		$23.5M Buy
+6,682,037
New +$27.4M ﹤0.01% 1852

Other funds holding IRWD

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AC
Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return
SCM
Sarissa Capital Management Greenwich, Connecticut $178M AUM 118.43% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management's IRWD Position: Q2 2026 in Review

Vanguard Portfolio Management reduced its Ironwood Pharmaceuticals (IRWD) stake by 17% in Q2 2026, selling an estimated $4.5M and leaving 5,513,355 shares worth $23.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1937.

Vanguard Portfolio Management first reported a position in IRWD in Q1 2026 and has held it in 2 quarters since. The position peaked at $23.5M in Q1 2026. 211 funds tracked by Wall St. Rank hold IRWD as of Q2 2026.

  • Vanguard Portfolio Management held 5,513,355 shares of Ironwood Pharmaceuticals worth $23.2M as of Q2 2026.
  • Vanguard Portfolio Management sold 1,168,682 Ironwood Pharmaceuticals shares in Q2 2026, an estimated $4.5M.
  • Ironwood Pharmaceuticals made up ﹤0.01% of Vanguard Portfolio Management's portfolio in Q2 2026, its #1937 holding.
  • Vanguard Portfolio Management first reported a position in Ironwood Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • Vanguard Portfolio Management's Ironwood Pharmaceuticals position peaked at $23.5M in Q1 2026.
  • 211 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.