Post Holdings, Inc.
US ˙ NYSE ˙ US7374461041

SecurityPOST / Post Holdings, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership5,740 shares
Latest Disclosed Value $ 567,428
Advisor Group Holdings, Inc. reports 38.26% decrease in ownership of POST / Post Holdings, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 5,740 shares of Post Holdings, Inc. (US:POST) valued at $567,456 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,297 shares of Post Holdings, Inc.. This represents a change in shares of -38.26% during the quarter. The current value of the position is $522,340 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)
2026-05-15 2026-03-31 13F POST HLDGS COM 737446104 5,740 -3,557 -38.26 567 -38.37 0.0005
2026-02-17 2025-12-31 13F POST HLDGS COM 737446104 9,297 -7,356 -44.17 921 -50.67 0.0013
2025-11-14 2025-09-30 13F POST HLDGS COM 737446104 16,653 -4,574 -21.55 1,866 -19.54 0.0026
2025-09-04 2025-06-30 13F/A-1 POST HLDGS COM 737446104 21,227 9,391 79.34 2,318 68.34 0.0041
2025-08-13 2025-06-30 13F POST HLDGS COM 737446104 3,175 -8,661 356 0.0004
2025-05-12 2025-03-31 13F POST HLDGS COM 737446104 11,836 8,439 248.43 1,377 254.90 0.0031
2025-06-06 2024-12-31 13F/A-1 POST HLDGS COM 737446104 3,397 347 11.38 389 9.92 0.0009
2025-02-07 2024-12-31 13F POST HLDGS COM 737446104 2,542 -508 291 0.0007
2024-11-13 2024-09-30 13F POST HLDGS COM 737446104 3,050 714 30.57 353 45.27 0.0008
2024-08-13 2024-06-30 13F POST HLDGS COM 737446104 2,336 1,491 176.45 243 173.03 0.0006
2024-05-10 2024-03-31 13F POST HLDGS COM 737446104 845 -8,360 -90.82 90 -89.01 0.0002
2024-02-12 2023-12-31 13F POST HLDGS COM 737446104 9,205 -3,265 -26.18 811 -24.23 0.0014
2023-11-13 2023-09-30 13F POST HLDGS COM 737446104 12,470 4,741 61.34 1,069 59.79 0.0016
2023-08-21 2023-06-30 13F/A-1 POST HLDGS COM 737446104 7,729 -2,716 -26.00 670 -28.68 0.0012
2023-08-10 2023-06-30 13F POST HLDGS COM 737446104 7,729 -2,716 670 0.0002
2023-05-12 2023-03-31 13F POST HLDGS COM 737446104 10,445 877 9.17 939 8.69 0.0018
2023-02-10 2022-12-31 13F POST HLDGS COM 737446104 9,568 3,986 71.41 864 89.25 0.0017
2022-11-14 2022-09-30 13F POST HLDGS COM 737446104 5,582 1,435 34.60 456 33.72 0.0010
2022-08-10 2022-06-30 13F POST HLDGS COM 737446104 4,147 1,136 37.73 341 58.60 0.0008
2022-05-04 2022-03-31 13F POST HLDGS COM 737446104 3,011 391 14.92 215 -27.12 0.0004
2022-02-03 2021-12-31 13F POST HLDGS COM 737446104 2,620 412 18.66 295 20.90 0.0006
2021-11-05 2021-09-30 13F POST HLDGS COM 737446104 2,208 222 11.18 244 14.02 0.0005
2021-08-02 2021-06-30 13F POST HLDGS COM 737446104 1,986 192 10.70 214 13.23 0.0005
2021-05-13 2021-03-31 13F POST HLDGS COM 737446104 1,794 -66 -3.55 189 0.53 0.0005
2021-02-10 2020-12-31 13F POST HLDGS COM 737446104 1,860 -145 -7.23 188 9.30 0.0005
2020-11-12 2020-09-30 13F POST HLDGS COM 737446104 2,005 74 3.83 172 1.78 0.0005
2020-08-14 2020-06-30 13F POST HLDGS COM 737446104 1,931 -373 -16.19 169 -11.05 0.0006
2020-05-18 2020-03-31 13F POST HLDGS COM 737446104 2,304 2,304 190 0.0008
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.