Post Holdings, Inc.
US ˙ NYSE ˙ US7374461041

SecurityPOST / Post Holdings, Inc.
InstitutionJump Financial, LLC
Latest Disclosed Ownership9,734 shares
Latest Disclosed Value $ 962,303
Jump Financial, LLC ownership in POST / Post Holdings, Inc.

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 9,734 shares of Post Holdings, Inc. (US:POST) valued at $962,303 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Post Holdings, Inc.. The current value of the position is $885,794 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)
2026-05-14 2026-03-31 13F Post Holdings Common Stock 737446104 9,734 9,734 962 0.0115
2025-11-13 2025-09-30 13F Post Holdings Common Stock 737446104 0 -4,218 -100.00 0 -100.00
2025-08-13 2025-06-30 13F Post Holdings Common Stock 737446104 4,218 1,169 38.34 460 29.66 0.0051
2025-05-14 2025-03-31 13F Post Holdings Common Stock 737446104 3,049 3,049 355 0.0049
2025-02-13 2024-12-31 13F Post Holdings Common Stock 737446104 0 -3,663 -100.00 0 -100.00
2024-11-14 2024-09-30 13F Post Holdings Common Stock 737446104 3,663 -30,751 -89.36 424 -88.20 0.0086
2024-11-14 2024-06-30 13F/A-1 Post Holdings Common Stock 737446104 34,414 8,464 32.62 3,585 30.00 0.0716
2024-08-14 2024-06-30 13F POST HLDGS Common Stock 737446104 34,414 8,464 3,585 0.0716
2024-05-13 2024-03-31 13F POST HLDGS Common Stock 737446104 25,950 20,150 347.41 2,758 440.59 0.0755
2024-10-21 2023-12-31 13F/A-2 POST HLDGS COM 737446104 5,800 -13,921 -70.59 511 -69.82 0.5099
2024-10-21 2023-12-31 13F/A-1 Post Holdings Common Stock 737446104 19,558 -163 1,722 0.0376
2024-02-07 2023-12-31 13F POST HLDGS Common Stock 737446104 19,558 -163 1,722 0.0569
2024-10-21 2023-09-30 13F/A-1 Post Holdings Common Stock 737446104 19,721 19,721 1,691 0.0639
2023-11-07 2023-09-30 13F POST HLDGS Common Stock 737446104 16,221 16,221 1,391 0.0532
2023-05-03 2023-03-31 13F POST HLDGS Common Stock 737446104 0 -10,900 -100.00 0 -100.00
2023-02-14 2022-12-31 13F POST HLDGS Common Stock 737446104 10,900 10,900 984 0.0521
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.