Prior Movesmirror the world’s best investors

🪞 Sachem Head

Style
Activist
Disclosed holdings
19
Top pick hit rate
1.7%
Backtest edge
-

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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🔮 Predicted next buys: quarter ending 2026-09-30

The model orders Sachem Head’s candidates for the next 13F filing. No public confirmation yet. The rate beside each name is the model’s own score rewritten as a measured quantity: how often a name in that position turned out to be the next buy across 2,030 investor-quarters of holdout. Picking at random from this board lands 0.62%.

#TickerCompanyMeasured hit ratevs base
1DHIDr Horton Inc1.7%2.8x
2RRCRange Resources Corp1.7%2.8x
3ABTAbbott Laboratories1.7%2.7x
4BRKRBruker Corp1.7%2.7x
5DTDynatrace Inc1.6%2.6x
6MKSIMks Inc1.6%2.6x
7NOWServicenow Inc1.6%2.5x
8UPSUnited Parcel Service-Cl B1.5%2.5x
9DTEDte Energy Company1.5%2.4x
10STMStmicroelectronics Nv-Ny Shs1.5%2.3x

📉 Predicted exits, conviction fading

Of Sachem Head’s current disclosed holdings, the names a model flags as most likely to be EXITED or TRIMMED next quarter, before the 13F shows it. Model score (not a calibrated probability), ranked. Holdings as of 2026-06-30.

TickerCompanyWeightLast moveSell likelihood
TWLOTwilio Inc2.65%trimmed last Q▲▲ 64
GILGildan Activewear Inc3.90%trimmed last Q 60
TLNTalen Energy Corp10.92%trimmed last Q 54
-Seagate Technology Hldngs Pl9.45%just entered 53

⚠️ This predicts the ACTION (whether Sachem Head reduces the position), not a return and not a short. A 13F shows long positions only, so a “sell” here means exiting or cutting a long, never shorting the stock. Walk-forward validated on the decision (AUC ≈ 0.66), but acting on it is not shown to make money. Research, not advice.

📜 Top disclosed holdings: Jun 2026

TickerCompanyWeightLast change
TLNTalen Energy Corp10.92%➖ Trimmed
-Seagate Technology Hldngs Pl9.45%🆕 New
PRMBPrimo Brands Corporation9.02%✊ Held
PFGCPerformance Food Group Co7.77%✊ Held
MKSIMks Inc.7.50%🆕 New
DKSDicks Sporting Goods Inc7.01%✊ Held
CVNACarvana Co6.11%➕ Added
SHCSotera Health Co5.73%➕ Added
CELHCelsius Hldgs Inc5.52%🆕 New
GDSGds Hldgs Ltd5.41%✊ Held
GILGildan Activewear Inc3.90%➖ Trimmed
-Golar Lng Ltd3.74%🆕 New
BRKRBruker Corp3.64%🆕 New
STMStmicroelectronics N V3.42%🆕 New
-Bitdeer Technologies Group3.17%✊ Held

Source: SEC Form 13F (public domain), long U.S. equity positions only, disclosed up to 45 days after quarter-end. Top 15 of 19 shown.

💲 Where they bought: accumulation cost

13F shows holdings, not trade prices. Implied average cost is total value ÷ shares; the zone is the price range that quarter, where they accumulated. “vs cost” is today versus that average. This is where they bought, not a future price.

TickerAvg costAccumulation zoneTodayvs costDip target
TLN$384.26$313–$438$295.76-23.0%$313.70
PRMB$24.44$18–$25$22.44-8.2%$17.79
PFGC$111.79$84–$113$102.12-8.7%$80.66
MKSI$444.80$229–$444$270.99-39.1%$318.19
DKS$226.81$191–$239$131.77-41.9%$171.25
CVNA$65.82$62–$83$74.09+12.6%$59.69
SHC$17.75$14–$18$19.48+9.7%$12.71
CELH$29.28$28–$36$31.45+7.4%$26.05
GDS$30.03$29–$46$33.51+11.6%$32.94
GIL$51.60$50–$62$53.23+3.2%$44.18

Dip target = the recent high discounted by this investor’s historical tendency to add on weakness. Behavioral, not a guarantee.

🧬 Factor fingerprint, the style behind the book

72% of Sachem Head’s day-to-day swings are explained by public, buyable factors (Fama-French 5 + momentum), regressed on their current disclosed book (12 of 12 names, ~421 trading days). Market beta 1.23.

growth
value
large-cap
small-cap
low-quality
quality
contrarian
momentum
aggressive
conservative

⚠️ This is the part the great investors can’t hide: their style is a tilt toward known factors, and every one of these is sold as a cheap index ETF. Buying the factors gets you most of the book for a few basis points. What’s left after the factors (the residual) is noisy on a single concentrated book and is not a reliable edge, read this as transparency about the style you’re copying, not a secret signal. Loadings are in-sample on current static weights, U.S. long positions only. Research, not 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.