Prior Movesmirror the world’s best investors

🪞 Jeff Ubben · Inclusive Capital

Dormant. This investor last filed a 13F for Sep 2025 and has not filed under this CIK since. The holdings below are that final disclosed book, kept as a historical record; no new predictions are produced for a book that has stopped reporting.

ESG / impact activist.

Style
Activist
Disclosed holdings
3
Top pick hit rate
1.7%
Backtest edge
+0.3 pts/q

Hit rate is measured, not predicted: across 2,030 investor-quarters of walk-forward holdout, the name this model ranked first was the investor’s actual next new buy 1.7% of the time, against 0.62% for a name drawn at random from the same board. That is 2.77x chance. The model ranks the whole board; AUC and the rest of the scoring detail are on the how it works page.

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📜 Top disclosed holdings: Jun 2024

TickerCompanyWeightLast change
RDDTReddit Inc45.76%✊ Held
-Strategic Ed Inc36.99%➖ Trimmed
-Ingevity Corp17.25%✊ Held

Source: SEC Form 13F (public domain), long U.S. equity positions only, disclosed up to 45 days after quarter-end. Top 15 of 3 shown.

📈 This mirror’s track: backtest vs S&P 500

Avg edge / quarter
+0.3 pts
Quarters beating S&P
16/34
Avg quarterly return
+3.9%
-1%104%208%2017-092021-122025-12This mirror (backtest)S&P 500

⚠️ Read this honestly. Leak-free walk-forward backtest: top-10 predicted new buys ranked from a broad ~2,000-name universe known at the rebalance date, equal-weight, 1-quarter holds, complete quarters only, gross (before costs). Small samples, per-investor edges are noisy and not statistically significant. The consensus mirror's backtest shows +2.2 pts/quarter net vs the S&P 500 over 35 complete quarters (2017Q3 to 2026Q1), directional, NOT statistically significant (t≈1.3; 95% CI includes zero). Most of that average is one quarter: 2026Q1 posted a +47.5 pt edge, roughly half of it two AI-hardware names (SNDK +258%, AMD +186%) marked at what proved to be a local peak; excluding it the edge is +0.9 pts/quarter. Past performance does not predict future results. Not investment advice.

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Prior Moves is a research publication: one impersonal model portfolio per investor, identical for every reader. You place any trades yourself at your own broker. No execution, no custody, no individualised advice.