Ownership history in Rossby Financial, LCC Β· 3 quarters on record
This page tracks every 13F SEC filing in which Rossby Financial, LCC reported a position in MPLX LP COM UNIT REP LTD (MPLX). 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 Rossby Financial, LCC underperformed the S&P 500 by β43.9% annually on this MPLX position. Average cost basis: $49.47. Maximum drawdown during holding period: β3.0%.
β Significantly underperformed the S&P 500 by 43.9% ann.
2 quarters analyzed
Best entry: $49.47 (2025 Q1) Β· Worst: $49.47 (2025 Q1)
π No drawdown exceeding 20% during the holding period β exceptionally stable.
1 add Β· 0 trims. Bought during 0 of 2 down-price quarters. π Consistently bullish β fund kept accumulating this position.
βοΈ Portfolio weight has remained relatively stable β conviction maintained.
Currently 0.01% 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