Ironwood Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US46333X1081

SecurityIRWD / Ironwood Pharmaceuticals, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Amalgamated Bank closes position in IRWD / Ironwood Pharmaceuticals, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 0 shares of Ironwood Pharmaceuticals, Inc. (US:IRWD) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 5,027 shares of Ironwood Pharmaceuticals, Inc.. The current value of the position is $0 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)
2026-05-08 2026-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 0 -100.00 0
2026-02-05 2025-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 5,027 350 7.48 0 0.0001
2025-10-29 2025-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 4,677 0 0.00 0 0.0000
2025-08-04 2025-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 4,677 0 0.00 0 0.0000
2025-04-25 2025-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 4,677 -36,405 -88.62 0 0.0001
2025-02-04 2024-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 41,082 -375 -0.90 0 0.0015
2024-10-30 2024-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 41,457 -287 -0.69 0 0.0014
2024-08-12 2024-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 41,744 -1,465 -3.39 0 0.0023
2024-04-23 2024-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 43,209 -10,560 -19.64 0 0.0032
2024-02-06 2023-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 53,769 -3,834 -6.66 1 0.0049
2023-11-08 2023-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 57,603 0 0.00 1 0.0047
2023-08-11 2023-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 57,603 -3,897 -6.34 1 0.0050
2023-05-02 2023-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 61,500 -4,161 -6.34 1 0.0055
2023-02-10 2022-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 65,661 0 0.00 1 -100.00 0.0073
2022-11-09 2022-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 65,661 -6,032 -8.41 680 -17.78 0.0066
2022-08-15 2022-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 71,693 47,757 199.52 827 174.75 0.0077
2022-08-25 2022-03-31 13F/A-1 IRONWOOD PHARMACEUTICALS COM 46333X108 23,936 -1,815 -7.05 301 0.33 0.0023
2022-06-30 2022-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 23,936 -1,815 301 0.0024
2022-02-15 2021-12-31 13F/A-1 IRONWOOD PHARMACEUTICALS COM 46333X108 25,751 -92 -0.36 300 -11.24 0.0022
2022-02-15 2021-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 25,751 -92 300 0.0022
2021-10-29 2021-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 25,843 -1,591 -5.80 338 -4.25 0.0029
2021-08-16 2021-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 27,434 4,758 20.98 353 38.98 0.0028
2021-05-13 2021-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 22,676 -2,258 -9.06 254 -10.56 0.0095
2021-02-12 2020-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 24,934 129 0.52 284 27.35 0.0108
2020-10-30 2020-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 24,805 -715 -2.80 223 -15.21 0.0097
2020-08-10 2020-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 25,520 -2,036 -7.39 263 -5.40 0.0122
2020-05-13 2020-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 27,556 -323 -1.16 278 -25.07 0.0068
2020-02-13 2019-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 27,879 597 2.19 371 58.55 0.0068
2019-11-13 2019-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 27,282 -405 -1.46 234 -22.77 0.0049
2019-08-14 2019-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 27,687 6,404 30.09 303 5.21 0.0071
2019-05-15 2019-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 21,283 879 4.31 288 36.49 0.0070
2019-02-15 2018-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 20,404 20,404 211 0.0060
2018-11-14 2018-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 0 -21,156 -100.00 0 -100.00
2018-07-18 2018-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 21,156 3,142 17.44 405 45.68 0.0099
2018-05-22 2018-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 18,014 -264 -1.44 278 1.46 0.0074
2018-02-13 2017-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 18,278 1,137 6.63 274 1.48 0.0074
2017-11-09 2017-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 17,141 -139 -0.80 270 -17.18 0.0084
2017-08-10 2017-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 17,280 1,421 8.96 326 20.30 0.0107
2017-05-12 2017-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 15,859 -13 -0.08 271 11.52 0.0135
2017-02-14 2016-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 15,872 2,187 15.98 243 11.98 0.0110
2016-11-15 2016-09-30 13F/A-1 IRONWOOD PHARMACEUTICALS COM 46333X108 13,685 17 0.12 217 19.23 0.0126
2016-08-16 2016-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 13,668 397 2.99 182 25.52 0.0105
2016-05-11 2016-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 13,271 1,198 9.92 145 3.57 0.0141
2016-02-10 2015-12-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 12,073 -1,187 -8.95 140 1.45 0.0173
2015-11-04 2015-09-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 13,260 230 1.77 138 -12.10 0.0145
2015-07-10 2015-06-30 13F IRONWOOD PHARMACEUTICALS COM 46333X108 13,030 894 7.37 157 -19.07 0.0154
2015-04-22 2015-03-31 13F IRONWOOD PHARMACEUTICALS COM 46333X108 12,136 12,136 0.00 194 0.0237
2015-01-29 2014-12-31 13F IRONWOOD PHARMACEUTICALS INC. COM 46333X108 0 -11,656 -100.00 0 -100.00
2014-11-14 2014-09-30 13F IRONWOOD PHARMACEUTICALS INC. COM 46333X108 11,656 -4 -0.03 151 -15.64 0.0225
2014-08-11 2014-06-30 13F IRONWOOD PHARMACEUTICALS INC. COM 46333X108 11,660 731 6.69 179 32.59 0.0270
2014-05-12 2014-03-31 13F IRONWOOD PHARMACEUTICALS INC. COM 46333X108 10,929 10,929 135 0.0233
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.