Post Holdings, Inc.
US ˙ NYSE ˙ US7374461041

SecurityPOST / Post Holdings, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership19,252 shares
Latest Disclosed Value $ 1,903
Amalgamated Bank reports 8.27% decrease in ownership of POST / Post Holdings, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 19,252 shares of Post Holdings, Inc. (US:POST) valued at $1,903,253 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 20,988 shares of Post Holdings, Inc.. This represents a change in shares of -8.27% during the quarter. The current value of the position is $1,751,932 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 POST HOLDINGS COM 737446104 19,252 -1,736 -8.27 2 -50.00 0.0146
2026-02-05 2025-12-31 13F POST HOLDINGS COM 737446104 20,988 -1,055 -4.79 2 0.00 0.0150
2025-10-29 2025-09-30 13F POST HOLDINGS COM 737446104 22,043 979 4.65 2 0.00 0.0169
2025-08-04 2025-06-30 13F POST HOLDINGS COM 737446104 21,064 -176 -0.83 2 0.00 0.0177
2025-04-25 2025-03-31 13F POST HOLDINGS COM 737446104 21,240 -1,342 -5.94 2 0.00 0.0211
2025-02-04 2024-12-31 13F POST HOLDINGS COM 737446104 22,582 -130 -0.57 3 0.00 0.0212
2024-10-30 2024-09-30 13F POST HOLDINGS COM 737446104 22,712 -8,706 -27.71 3 -33.33 0.0217
2024-08-12 2024-06-30 13F POST HOLDINGS COM 737446104 31,418 -3,213 -9.28 3 0.00 0.0279
2024-04-23 2024-03-31 13F POST HOLDINGS COM 737446104 34,631 1,498 4.52 4 50.00 0.0315
2024-02-06 2023-12-31 13F POST HOLDINGS COM 737446104 33,133 -3,344 -9.17 3 -33.33 0.0233
2023-11-08 2023-09-30 13F POST HOLDINGS COM 737446104 36,477 1,491 4.26 3 0.00 0.0266
2023-08-11 2023-06-30 13F POST HOLDINGS COM 737446104 34,986 -1,984 -5.37 3 0.00 0.0245
2023-05-02 2023-03-31 13F POST HOLDINGS COM 737446104 36,970 -10,906 -22.78 3 -25.00 0.0283
2023-02-10 2022-12-31 13F POST HOLDINGS COM 737446104 47,876 8,827 22.60 4 -99.87 0.0385
2022-11-09 2022-09-30 13F POST HOLDINGS COM 737446104 39,049 -4,695 -10.73 3,199 -11.19 0.0309
2022-08-15 2022-06-30 13F POST HOLDINGS COM 737446104 43,744 3,984 10.02 3,602 30.79 0.0336
2022-08-25 2022-03-31 13F/A-1 POST HOLDINGS COM 737446104 39,760 -2,297 -5.46 2,754 -41.91 0.0214
2022-06-30 2022-03-31 13F POST HOLDINGS COM 737446104 39,760 -2,297 2,754 0.0219
2022-02-15 2021-12-31 13F/A-1 POST HOLDINGS COM 737446104 42,057 -645 -1.51 4,741 0.79 0.0350
2022-02-15 2021-12-31 13F POST HOLDINGS COM 737446104 42,057 -645 4,741 0.0350
2021-10-29 2021-09-30 13F POST HOLDINGS COM 737446104 42,702 -4,667 -9.85 4,704 -8.45 0.0397
2021-08-16 2021-06-30 13F POST HOLDINGS COM 737446104 47,369 39,864 531.17 5,138 547.92 0.0412
2021-05-13 2021-03-31 13F POST HOLDINGS COM 737446104 7,505 -953 -11.27 793 -7.14 0.0297
2021-02-12 2020-12-31 13F POST HOLDINGS COM 737446104 8,458 8 0.09 854 17.47 0.0324
2020-10-30 2020-09-30 13F POST HOLDINGS COM 737446104 8,450 -48 -0.56 727 -2.42 0.0316
2020-08-10 2020-06-30 13F POST HOLDINGS COM 737446104 8,498 -7,532 -46.99 745 -43.98 0.0345
2020-05-13 2020-03-31 13F POST HOLDINGS COM 737446104 16,030 -246 -1.51 1,330 -25.11 0.0325
2020-02-13 2019-12-31 13F POST HOLDINGS COM 737446104 16,276 1,175 7.78 1,776 11.14 0.0327
2019-11-13 2019-09-30 13F POST HOLDINGS COM 737446104 15,101 866 6.08 1,598 7.97 0.0336
2019-08-14 2019-06-30 13F POST HOLDINGS COM 737446104 14,235 -263 -1.81 1,480 -6.68 0.0345
2019-05-15 2019-03-31 13F POST HOLDINGS COM 737446104 14,498 238 1.67 1,586 24.78 0.0384
2019-02-15 2018-12-31 13F POST HOLDINGS COM 737446104 14,260 3,184 28.75 1,271 17.03 0.0360
2018-11-14 2018-09-30 13F POST HOLDINGS COM 737446104 11,076 -3,673 -24.90 1,086 -14.42 0.0269
2018-07-18 2018-06-30 13F POST HOLDINGS COM 737446104 14,749 1,867 14.49 1,269 30.02 0.0310
2018-05-22 2018-03-31 13F POST HOLDINGS COM 737446104 12,882 -239 -1.82 976 -6.15 0.0259
2018-02-13 2017-12-31 13F POST HOLDINGS COM 737446104 13,121 734 5.93 1,040 -4.85 0.0281
2017-11-09 2017-09-30 13F POST HOLDINGS COM 737446104 12,387 -539 -4.17 1,093 8.86 0.0340
2017-08-10 2017-06-30 13F POST HOLDINGS COM 737446104 12,926 2,663 25.95 1,004 11.80 0.0329
2017-05-12 2017-03-31 13F POST HOLDINGS COM 737446104 10,263 -1,066 -9.41 898 -1.43 0.0447
2017-02-14 2016-12-31 13F POST HOLDINGS COM 737446104 11,329 1,173 11.55 911 16.20 0.0412
2016-11-15 2016-09-30 13F/A-1 POST HOLDINGS COM 737446104 10,156 6 0.06 784 -6.67 0.0455
2016-08-16 2016-06-30 13F POST HOLDINGS COM 737446104 10,150 3,247 47.04 840 76.84 0.0486
2016-05-11 2016-03-31 13F POST HOLDINGS COM 737446104 6,903 648 10.36 475 23.06 0.0463
2016-02-10 2015-12-31 13F POST HOLDINGS COM 737446104 6,255 -435 -6.50 386 -2.28 0.0476
2015-11-04 2015-09-30 13F POST HOLDINGS COM 737446104 6,690 782 13.24 395 23.82 0.0414
2015-07-10 2015-06-30 13F POST HOLDINGS COM 737446104 5,908 5,908 319 0.0313
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.