Post Holdings, Inc.
US ˙ NYSE ˙ US7374461041

SecurityPOST / Post Holdings, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership5,214 shares
Latest Disclosed Value $ 515,457
Quadrant Capital Group Llc reports 9.57% decrease in ownership of POST / Post Holdings, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 5,214 shares of Post Holdings, Inc. (US:POST) valued at $515,456 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 5,766 shares of Post Holdings, Inc.. This represents a change in shares of -9.57% during the quarter. The current value of the position is $474,474 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/A-1 POST HLDGS COM 737446104 5,214 -552 -9.57 515 -9.81 0.0154
2026-05-11 2026-03-31 13F POST HLDGS COM 737446104 5,214 -552 49 0.0369
2026-02-12 2025-12-31 13F POST HLDGS COM 737446104 5,766 -142 -2.40 571 -9.94 0.0173
2025-11-13 2025-09-30 13F POST HLDGS COM 737446104 5,908 482 8.88 635 7.28 0.0206
2025-08-13 2025-06-30 13F POST HLDGS COM 737446104 5,426 62 1.16 592 -5.29 0.0213
2025-05-13 2025-03-31 13F POST HLDGS COM 737446104 5,364 4,947 1,186.33 624 1,227.66 0.0232
2025-02-13 2024-12-31 13F POST HLDGS COM 737446104 417 27 6.92 48 4.44 0.0033
2024-11-12 2024-09-30 13F POST HLDGS COM 737446104 390 0 0.00 45 12.50 0.0031
2024-08-12 2024-06-30 13F POST HLDGS COM 737446104 390 90 30.00 41 29.03 0.0030
2024-05-15 2024-03-31 13F POST HLDGS COM 737446104 300 14 4.90 32 24.00 0.0025
2024-02-08 2023-12-31 13F POST HLDGS COM 737446104 286 -159 -35.73 25 -34.21 0.0022
2023-11-14 2023-09-30 13F POST HLDGS COM 737446104 445 138 44.95 38 46.15 0.0038
2023-08-10 2023-06-30 13F POST HLDGS COM 737446104 307 24 8.48 27 4.00 0.0026
2023-05-11 2023-03-31 13F POST HLDGS COM 737446104 283 -17 -5.67 25 -7.41 0.0026
2023-02-13 2022-12-31 13F POST HLDGS COM 737446104 300 -57 -15.97 27 -6.90 0.0031
2022-11-10 2022-09-30 13F POST HLDGS COM 737446104 357 117 48.75 29 45.00 0.0038
2022-08-09 2022-06-30 13F POST HLDGS COM 737446104 240 139 137.62 20 185.71 0.0027
2022-05-06 2022-03-31 13F POST HLDGS COM 737446104 101 -2 -1.94 7 -41.67 0.0008
2022-02-01 2021-12-31 13F POST HLDGS COM 737446104 103 2 1.98 12 9.09 0.0014
2021-11-12 2021-09-30 13F POST HLDGS COM 737446104 101 1 1.00 11 0.00 0.0015
2021-08-09 2021-06-30 13F POST HLDGS COM 737446104 100 11 12.36 11 22.22 0.0016
2021-05-12 2021-03-31 13F POST HLDGS COM 737446104 89 8 9.88 9 12.50 0.0015
2021-02-16 2020-12-31 13F POST HLDGS COM 737446104 81 0 0.00 8 14.29 0.0015
2020-11-13 2020-09-30 13F POST HLDGS COM 737446104 81 3 3.85 7 0.00 0.0015
2020-08-13 2020-06-30 13F POST HLDGS COM 737446104 78 -649 -89.27 7 -88.52 0.0015
2020-05-15 2020-03-31 13F Post Holdings Com 737446104 727 707 3,535.00 61 2,950.00 0.0102
2020-03-19 2019-12-31 13F/A-1 Post Holdings Com 737446104 20 0 0.00 2 0.00 0.0002
2020-02-03 2019-12-31 13F Post Holdings Com 737446104 20 0 2 6.7583
2019-10-24 2019-09-30 13F Post Holdings COM 737446104 20 0 0.00 2 0.00 0.0003
2019-07-24 2019-06-30 13F Post Holdings COM 737446104 20 -429 -95.55 2 -95.83 0.0003
2019-04-29 2019-03-31 13F Post Holdings COM 737446104 449 429 2,145.00 48 4,700.00 0.0084
2019-01-17 2018-12-31 13F Post Holdings COM 737446104 20 0 0.00 1 0.00 0.0003
2018-10-29 2018-09-30 13F Post Holdings COM 737446104 20 0 0.00 1 0.00 0.0003
2018-08-08 2018-06-30 13F Post Holdings COM 737446104 20 -100 -83.33 1 -87.50 0.0004
2018-05-10 2018-03-31 13F Post Holdings COM 737446104 120 74 160.87 8 166.67 0.0029
2018-01-31 2017-12-31 13F Post Holdings COM 737446104 46 0 0.00 3 0.00 0.0012
2017-10-13 2017-09-30 13F Post Holdings COM 737446104 46 26 130.00 3 200.00 0.0012
2017-08-14 2017-06-30 13F Post Holdings COM 737446104 20 -33 -62.26 1 -66.67 0.0004
2017-04-10 2017-03-31 13F Post Holdings COM 737446104 53 33 165.00 3 200.00 0.0013
2017-01-11 2016-12-31 13F Post Holdings COM 737446104 20 0 0.00 1 0.00 0.0005
2016-10-25 2016-09-30 13F Post Holdings COM 737446104 20 0 0.00 1 0.00 0.0007
2016-07-28 2016-06-30 13F Post Holdings COM 737446104 20 20 1 0.0007
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.