Ironwood Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US46333X1081

SecurityIRWD / Ironwood Pharmaceuticals, Inc.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership744,638 shares
Latest Disclosed Value $ 2,613,680
Franklin Resources Inc reports 93.12% increase in ownership of IRWD / Ironwood Pharmaceuticals, Inc.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 744,638 shares of Ironwood Pharmaceuticals, Inc. (US:IRWD) valued at $2,613,679 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 385,583 shares of Ironwood Pharmaceuticals, Inc.. This represents a change in shares of 93.12% during the quarter. The current value of the position is $2,412,627 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 744,638 359,055 93.12 2,614 101.15 0.0001
2026-02-11 2025-12-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 385,583 362,332 1,558.35 1,299 4,230.00 0.0003
2025-11-13 2025-09-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 23,251 0 0.00 30 87.50 0.0000
2025-08-12 2025-06-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 23,251 -282,760 -92.40 17 -96.44 0.0000
2025-05-13 2025-03-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 306,011 -3,225 -1.04 450 -67.20 0.0001
2025-02-12 2024-12-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 309,236 -3,812 -1.22 1,370 2.01 0.0004
2024-11-27 2024-09-30 13F/A-1 IRONWOOD PHARMACEUTICALS COM CL A 46333X108 313,048 -7,127 -2.23 1,343 -35.70 0.0004
2024-11-12 2024-09-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 313,048 -7,127 1,343 0.0001
2024-08-14 2024-06-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 320,175 8,835 2.84 2,088 -23.02 0.0006
2024-05-13 2024-03-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 311,340 282,762 989.44 2,712 731.60 0.0009
2024-02-09 2023-12-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 28,578 8,822 44.65 327 71.58 0.0002
2023-11-13 2023-09-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 19,756 -3,381 -14.61 190 -22.76 0.0001
2023-08-11 2023-06-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 23,137 323 1.42 246 2.50 0.0001
2023-05-12 2023-03-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 22,814 2,798 13.98 240 -2.83 0.0001
2023-02-10 2022-12-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 20,016 -291 -1.43 248 17.06 0.0001
2022-11-14 2022-09-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 20,307 6,123 43.17 211 29.45 0.0001
2022-08-11 2022-06-30 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 14,184 2,153 17.90 163 7.95 0.0001
2022-05-13 2022-03-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 12,031 1,933 19.14 151 29.06 0.0001
2022-02-11 2021-12-31 13F IRONWOOD PHARMACEUTICALS COM CL A 46333X108 10,098 10,098 117 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.