Post Holdings, Inc.
US ˙ NYSE ˙ US7374461041

SecurityPOST / Post Holdings, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership2,812,423 shares
Ownership 5.20%
Dimensional Fund Advisors Lp ownership in POST / Post Holdings, Inc.

2025-10-09 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,812,423 shares of Post Holdings, Inc. (US:POST). This represents 5.2 percent ownership of the company. In their previous filing dated 2025-07-15 , Dimensional Fund Advisors Lp had reported owning 2,701,495 shares, indicating an increase of 4.11 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-10-09 2025-10-09 13G 2,701,495 2,812,423 4.11 5.20 8.33
2025-07-15 2025-07-15 13G/A 3,130,544 2,701,495 -13.71 4.80 -11.11
2024-10-31 2024-10-31 13G 2,703,960 3,130,544 15.78 5.40 29.19
2017-02-09 2017-02-09 13G/A 3,446,953 2,703,960 -21.56 4.18 -24.68
2016-02-09 2016-02-09 13G/A 3,446,953 5.55
2015-02-05 2015-02-05 13G/A 2,401,100 5.35
2014-02-10 2014-02-10 13G 1,921,105 5.88

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F POST HLDGS COM 737446104 3,071,875 114,677 3.88 303,678 3.68 0.0136
2026-02-12 2025-12-31 13F POST HLDGS COM 737446104 2,957,198 144,775 5.15 292,912 -3.10 0.0614
2025-11-12 2025-09-30 13F POST HLDGS COM 737446104 2,812,423 110,928 4.11 302,272 2.62 0.0649
2025-08-12 2025-06-30 13F POST HLDGS COM 737446104 2,701,495 -334,346 -11.01 294,543 -16.62 0.0682
2025-05-13 2025-03-31 13F POST HLDGS COM 737446104 3,035,841 -165,553 -5.17 353,245 -3.60 0.0878
2025-02-13 2024-12-31 13F POST HLDGS COM 737446104 3,201,394 70,850 2.26 366,428 1.12 0.0880
2024-11-07 2024-09-30 13F POST HLDGS COM 737446104 3,130,544 67,440 2.20 362,362 13.57 0.0879
2024-08-09 2024-06-30 13F POST HLDGS COM 737446104 3,063,104 27,448 0.90 319,052 -1.11 0.0833
2024-05-10 2024-03-31 13F POST HLDGS COM 737446104 3,035,656 33,370 1.11 322,630 22.03 0.0873
2024-02-07 2023-12-31 13F POST HLDGS COM 737446104 3,002,286 249,155 9.05 264,382 12.00 0.0772
2023-11-09 2023-09-30 13F POST HLDGS COM 737446104 2,753,131 116,358 4.41 236,053 3.32 0.0774
2023-08-09 2023-06-30 13F POST HLDGS COM 737446104 2,636,773 109,413 4.33 228,474 0.59 0.0728
2023-05-12 2023-03-31 13F POST HLDGS COM 737446104 2,527,360 52,887 2.14 227,131 101,752.02 0.0765
2023-02-09 2022-12-31 13F POST HLDGS COM 737446104 2,474,473 247,989 11.14 223 -99.88 0.0660
2022-11-10 2022-09-30 13F POST HLDGS COM 737446104 2,226,484 171,015 8.32 182,376 7.74 0.0700
2022-08-12 2022-06-30 13F POST HLDGS COM 737446104 2,055,469 970 0.05 169,268 18.96 0.0607
2022-05-13 2022-03-31 13F POST HLDGS COM 737446104 2,054,499 -86,077 -4.02 142,292 -41.03 0.0438
2022-02-09 2021-12-31 13F POST HLDGS COM 737446104 2,140,576 -85,880 -3.86 241,302 -1.62 0.0730
2021-11-12 2021-09-30 13F POST HLDGS COM 737446104 2,226,456 80,770 3.76 245,275 5.39 0.0790
2021-08-12 2021-06-30 13F POST HLDGS COM 737446104 2,145,686 -46,721 -2.13 232,741 0.41 0.0737
2021-05-14 2021-03-31 13F POST HLDGS COM 737446104 2,192,407 -41,153 -1.84 231,786 2.74 0.0767
2021-03-08 2020-12-31 13F/A-2 POST HLDGS COM 737446104 2,233,560 -100,893 -4.32 225,613 12.39 0.0815
2021-02-11 2020-12-31 13F POST HLDGS COM 737446104 2,233,560 -100,893 225,613 81,479.4236
2020-11-12 2020-09-30 13F POST HLDGS COM 737446104 2,334,453 -26,904 -1.14 200,749 -2.97 0.0851
2020-08-13 2020-06-30 13F POST HLDGS COM 737446104 2,361,357 584 0.02 206,902 5.64 0.0909
2020-05-14 2020-03-31 13F POST HLDGS COM 737446104 2,360,773 -48,004 -1.99 195,853 -25.47 0.1020
2020-02-14 2019-12-31 13F POST HLDGS COM 737446104 2,408,777 1,172 0.05 262,797 3.13 0.0958
2019-11-12 2019-09-30 13F POST HLDGS COM 737446104 2,407,605 1,520 0.06 254,814 1.86 0.0990
2019-08-13 2019-06-30 13F POST HLDGS COM 737446104 2,406,085 4,519 0.19 250,152 -4.79 0.0971
2019-08-12 2019-03-31 13F/A-2 POST HLDGS COM 737446104 2,401,566 -37,742 -1.55 262,734 20.85 0.1046
2019-05-10 2019-03-31 13F POST HLDGS COM 737446104 2,401,566 -37,742 262,734
2019-02-26 2018-12-31 13F/A-1 POST HLDGS COM 737446104 2,439,308 11,684 0.48 217,408 -8.65 0.0985
2019-02-13 2018-12-31 13F POST HLDGS COM 737446104 2,439,308 11,684 217,408
2018-11-13 2018-09-30 13F POST HLDGS COM 737446104 2,427,624 57 0.00 238,000 13.97 0.0906
2018-08-10 2018-06-30 13F POST HLDGS COM 737446104 2,427,567 27,557 1.15 208,823 14.85 0.0832
2018-05-11 2018-03-31 13F POST HLDGS COM 737446104 2,400,010 -25,052 -1.03 181,825 -5.37 0.0758
2018-02-12 2017-12-31 13F POST HLDGS COM 737446104 2,425,062 151,201 6.65 192,133 -4.27 0.0796
2017-11-13 2017-09-30 13F POST HLDGS COM 737446104 2,273,861 78,669 3.58 200,704 17.75 0.0877
2017-08-11 2017-06-30 13F POST HLDGS COM 737446104 2,195,192 20,543 0.94 170,451 -10.44 0.0787
2017-05-12 2017-03-31 13F POST HLDGS COM 737446104 2,174,649 -529,311 -19.58 190,323 -12.44 0.0910
2017-02-09 2016-12-31 13F POST HLDGS COM 737446104 2,703,960 -583,175 -17.74 217,373 -14.31 0.1086
2016-11-10 2016-09-30 13F POST HLDGS COM 737446104 3,287,135 -301,039 -8.39 253,668 -14.50 0.1371
2016-08-09 2016-06-30 13F POST HLDGS COM 737446104 3,588,174 -32,224 -0.89 296,703 19.17 0.1707
2016-05-13 2016-03-31 13F POST HLDGS COM 737446104 3,620,398 173,445 5.03 248,977 17.07 0.1490
2016-02-10 2015-12-31 13F POST HLDGS COM 737446104 3,446,953 221,785 6.88 212,678 11.59 0.1326
2015-11-13 2015-09-30 13F POST HLDGS COM 737446104 3,225,168 42,440 1.33 190,597 11.05 0.1251
2015-08-14 2015-06-30 13F POST HLDGS COM 737446104 3,182,728 457,205 16.77 171,639 34.44 0.1051
2015-05-14 2015-03-31 13F POST HLDGS COM 737446104 2,725,523 324,423 13.51 127,666 26.92 0.0806
2015-02-06 2014-12-31 13F POST HLDGS COM 737446104 2,401,100 -55,201 -2.25 100,584 23.41 0.0661
2014-11-13 2014-09-30 13F POST HLDGS COM 737446104 2,456,301 34,523 1.43 81,502 -33.89 0.0577
2014-08-08 2014-06-30 13F POST HLDGS COM 737446104 2,421,778 393,784 19.42 123,291 10.30 0.0857
2014-05-14 2014-03-31 13F POST HLDGS COM 737446104 2,027,994 106,889 5.56 111,778 18.09 0.0835
2014-02-12 2013-12-31 13F POST HLDGS COM 737446104 1,921,105 61,178 3.29 94,653 26.06 0.0738
2013-11-13 2013-09-30 13F POST HLDGS COM 737446104 1,859,927 221,867 13.54 75,086 4.99 0.0650
2013-08-15 2013-06-30 13F POST HLDGS COM 737446104 1,638,060 1,638,060 71,519 0.0674
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.