Ownership history in IRIDIAN ASSET MANAGEMENT LLC/CT Β· 47 quarters on record
This page tracks every 13F SEC filing in which IRIDIAN ASSET MANAGEMENT LLC/CT reported a position in POST HOLDINGS INC (POST). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β sourced directly from SEC EDGAR 13F filings.
π IRIDIAN ASSET MANAGEMENT LLC/CT underperformed the S&P 500 by β16.2% annually on this POST position. Timing score: 57% (26/46 decisions correct). Average cost basis: $61.90. Maximum drawdown during holding period: β24.2%.
β Significantly underperformed the S&P 500 by 16.2% ann.
11 quarters analyzed
β
Decent timing β more right than wrong on entries and exits.
26 of 46 add/trim decisions correct
Best entry: $49.58 (2018 Q1) Β· Worst: $114.46 (2024 Q4)
πͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.
19 adds Β· 28 trims. Bought during 6 of 17 down-price quarters. π Predominantly trimming β distribution phase.
π Portfolio weight has been declining in recent quarters. Possible distribution phase.
Currently 6.17% of portfolio
β Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ 4 (annualised). Not investment advice.
As of 2025 Q4 β sorted by position size