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Of the 12 tracked institutions holding IRWD, 6 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +5.0pt. It's a gauge of who owns the name, not just how many.
Among the 12 tracked institutional investors we monitor, IRWD (IRONWOOD PHARMACEUTICALS INC) is held with a combined value of $241.21M across 69,356,485 shares. The largest holder is VANGUARD GROUP INC with a position worth $53.78M. Gotham Asset Management, LLC opened a new position in the most recent quarter. 5 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$241.21M
Total Shares Held
69,356,485
Institutional Holders
12
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $53.78M | 0.00% | -0.7% |
| 2 | ARMISTICE CAPITAL, LLC | $52.75M | 1.74% | -6.2% |
| 3 | BlackRock, Inc. | $46.90M | 0.00% | +4.5% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $28.29M | 0.04% | -1.8% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $26.45M | 0.01% | +59.5% |
| 6 | STATE STREET CORP | $26.17M | 0.00% | +69.0% |
| 7 | FMR LLC | $2.77M | 0.00% | +15.1% |
| 8 | MILLENNIUM MANAGEMENT LLC | $1.60M | 0.00% | -18.5% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $1.59M | 0.00% | -10.0% |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $437.00K | 0.00% | +25.1% |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of IRWD with a position worth $53.78M, representing 0.00% of their portfolio. In total, 12 institutional investors hold IRWD with a combined value of $241.21M.
In the most recent quarter, 1 fund opened a new position in IRWD. Additionally, 5 increased their holdings and 6 reduced their positions.
Institutional investors hold $241.21M worth of IRWD stock across 12 positions. The largest institutional holder is VANGUARD GROUP INC with $53.78M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For IRWD, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their IRWD positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$3.71
2026-07-24
YTD
-13.1%
64% of 52-week range
