IRWD
Ironwood Pharmaceuticals, Inc.After hours3.60+0.01 +0.28%USD
NasdaqGS · as of Oct 14, 16:00 ET · 15m delayAfter hours 3.57 −0.83%
Open
3.55
Prev close
3.59
Day range
3.513.63
52-week range
1.435.78
Volume
1.22M0.62×
Mkt cap
594.86M
P/E ttm
4.68
Fwd P/E
2.40
EPS ttm
0.7700
Div yield
0.00%
Earnings
Aug 6, 2026
From 52w high
−37.72%
IRWD shareholders
IRWD Ownership
13F / N-PORT filings via Yahoo
Institutions
99.0%
102.4% of the float
Insiders
3.2%
officers and directors
Institutional holders
290
filing positions
Top 10 institutions
55.0%
3 adding · 5 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| Blackrock Inc. | 10.77% | 17.79M | $64.04M | +33.1% | Jun 30, 2026 |
| Armistice Capital, LLC | 8.43% | 13.93M | $50.16M | −7.3% | Jun 30, 2026 |
| Sarissa Capital Management, LP | 5.56% | 9.19M | $33.08M | 0.0% | Jun 30, 2026 |
| State Street Corporation | 5.33% | 8.81M | $31.71M | +18.1% | Jun 30, 2026 |
| Bank of America Corporation | 5.26% | 8.68M | $31.26M | 0.0% | Jun 30, 2026 |
| Renaissance Technologies, LLC | 4.84% | 7.99M | $28.78M | −0.8% | Jun 30, 2026 |
| Vanguard Capital Management LLC | 4.00% | 6.61M | $23.79M | +8.4% | Jun 30, 2026 |
| AQR Capital Management, LLC | 3.91% | 6.47M | $23.28M | −14.2% | Jun 30, 2026 |
| Acadian Asset Management. LLC | 3.54% | 5.85M | $21.07M | −11.0% | Jun 30, 2026 |
| Vanguard Portfolio Management LLC | 3.34% | 5.51M | $19.85M | −17.5% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| SPDR SERIES TRUST-State Street SPDR S&P Biotech ETF | 3.51% | 5.81M | $20.90M | +7.5% | Aug 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 2.89% | 4.78M | $17.21M | +10.3% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 2.54% | 4.20M | $15.11M | +0.7% | Aug 31, 2026 |
| SCHWAB STRATEGIC TRUST-Schwab Fundamental U.S. Small Company ETF | 1.49% | 2.47M | $8.88M | −20.9% | May 31, 2026 |
| VANGUARD HORIZON FUNDS-Vanguard Strategic Equity Fund | 1.11% | 1.83M | $6.60M | −12.8% | Jun 30, 2026 |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.08% | 1.79M | $6.44M | +0.9% | Jul 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.02% | 1.68M | $6.04M | +4.1% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 Growth ETF | 0.86% | 1.42M | $5.13M | +3.3% | Aug 31, 2026 |
| Vanguard Explorer Fund | 0.85% | 1.40M | $5.05M | −14.0% | Jul 31, 2026 |
| Federated Hermes MDT Series-Federated Hermes MDT Small Cap Core Fund | 0.78% | 1.29M | $4.63M | 0.0% | Jul 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).