Soroban Capital Partners LP — Quarter-over-Quarter 13F Allocation Shifts Q1 2026
In Q1 2026, Soroban Capital Partners LP initiated 2 new positions, increased allocation to 9 existing positions, trimmed 10 positions, and exited 3 positions entirely. The fund's 13F equity book grew from $13.67B to $13.98B (+2.2% QoQ) . All deltas are sourced from sequential SEC Form 13F-HR filings; share-count changes reflect explicit trading activity, while weight changes can also include price movement. This page lists every position change reported — the portfolio overview shows a summary of the top shifts.
Net Portfolio Value Change
- $13.67BPrior quarter
- $13.98BCurrent quarter
- + $0.31BNet delta
- +2.2%% change
New Position Initiations Q1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Allocation Weight | History |
|---|---|---|---|
| DOMINOS PIZZA INC | DPZ | 6.40% | History → |
| NXP SEMICONDUCTORS NV | NXPI | 1.22% | Holders → |
Largest Allocation Increases Q1 2026
Largest portfolio-weight increases in existing positions. Share-count delta is shown separately so price-only re-weighting can be distinguished from active adds.
| Company | Ticker | Δ Weight | Δ Shares | History |
|---|---|---|---|---|
| EQUIFAX INC | EFX | +3.48% | +310.47% | History → |
| S&P GLOBAL INC | SPGI | +3.47% | +260.32% | History → |
| AMAZON COM INC | AMZN | +2.95% | +41.20% | History → |
| PINNACLE WEST CAP CORP | PNW | +0.89% | +33.97% | Holders → |
| MASTERCARD INCORPORATED | MA | +0.95% | +30.46% | History → |
| META PLATFORMS INC | META | +-0.57% | +19.36% | History → |
| VISA INC | V | +0.20% | +19.18% | History → |
| TRANSDIGM GROUP INC | TDG | +-0.11% | +14.47% | History → |
| DTE ENERGY CO | DTE | +0.07% | +2.00% | Holders → |
Largest Allocation Reductions Q1 2026
Largest portfolio-weight decreases in existing positions (positions kept open at a lower allocation).
| Company | Ticker | Δ Weight | Δ Shares | History |
|---|---|---|---|---|
| SOUTHERN CO | SO | -2.58% | -61.02% | Holders → |
| REXFORD INDUSTRIAL REALTY, INC. | REXR | -1.91% | -60.55% | Holders → |
| AMERICAN ELEC PWR CO INC | AEP | -1.05% | -55.90% | Holders → |
| ENTERGY CORP NEW | ETR | -0.81% | -46.52% | Holders → |
| RESTAURANT BRANDS INTERNATIONAL, INC. | QSR | -0.05% | -42.66% | Holders → |
| ALPHABET INC | GOOG | -1.99% | -40.39% | Holders → |
| ALPHABET INC | GOOGL | -0.40% | -36.67% | Holders → |
| TAIWAN SEMICONDUCTOR MANUFAC | TSM | -0.73% | -26.92% | History → |
| FERGUSON ENTERPRISES INC | FERG | -0.89% | -19.47% | Holders → |
| NISOURCE INC | NI | -0.21% | -16.60% | Holders → |
Exited Positions Q1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| BROOKFIELD CORP | BN | 1.92% |
| UNION PACIFIC CORP (UNP) | UNP | 1.77% |
| CSX CORP | CSX | 1.06% |
Methodology & FAQ
How Soroban Capital Partners LP Quarterly Changes Are Computed
Each row above is computed by joining the most recent 13F-HR filing for Soroban Capital Partners LP against the immediately preceding quarterly filing for the same fund. Portfolio weights are normalized to exclude listed options for comparability. A complete description of the methodology — including how confidential treatment filings are handled and why share count rather than weight is the cleaner trading signal — is documented in the Methodology.
Which positions did Soroban Capital Partners LP initiate in Q1 2026?
Soroban Capital Partners LP established 2 new positions in Q1 2026: DOMINOS PIZZA INC (DPZ, 6.40%), NXP SEMICONDUCTORS NV (NXPI, 1.22%).
Which existing positions saw the largest allocation increases for Soroban Capital Partners LP in Q1 2026?
The largest portfolio-weight increases in existing positions were: EQUIFAX INC (EFX, +3.48% weight, +310.47% shares), S&P GLOBAL INC (SPGI, +3.47% weight, +260.32% shares), AMAZON COM INC (AMZN, +2.95% weight, +41.20% shares), PINNACLE WEST CAP CORP (PNW, +0.89% weight, +33.97% shares), MASTERCARD INCORPORATED (MA, +0.95% weight, +30.46% shares), META PLATFORMS INC (META, +-0.57% weight, +19.36% shares), VISA INC (V, +0.20% weight, +19.18% shares), TRANSDIGM GROUP INC (TDG, +-0.11% weight, +14.47% shares), DTE ENERGY CO (DTE, +0.07% weight, +2.00% shares).
Which positions did Soroban Capital Partners LP fully exit in Q1 2026?
Soroban Capital Partners LP fully exited 3 positions in Q1 2026: BROOKFIELD CORP (BN, last-reported weight 1.92%), UNION PACIFIC CORP (UNP) (UNP, last-reported weight 1.77%), CSX CORP (CSX, last-reported weight 1.06%).
Which existing positions saw the largest allocation reductions for Soroban Capital Partners LP in Q1 2026?
The largest portfolio-weight reductions in positions kept open were: SOUTHERN CO (SO, -2.58% weight, -61.02% shares), REXFORD INDUSTRIAL REALTY, INC. (REXR, -1.91% weight, -60.55% shares), AMERICAN ELEC PWR CO INC (AEP, -1.05% weight, -55.90% shares), ENTERGY CORP NEW (ETR, -0.81% weight, -46.52% shares), RESTAURANT BRANDS INTERNATIONAL, INC. (QSR, -0.05% weight, -42.66% shares), ALPHABET INC (GOOG, -1.99% weight, -40.39% shares), ALPHABET INC (GOOGL, -0.40% weight, -36.67% shares), TAIWAN SEMICONDUCTOR MANUFAC (TSM, -0.73% weight, -26.92% shares), FERGUSON ENTERPRISES INC (FERG, -0.89% weight, -19.47% shares), NISOURCE INC (NI, -0.21% weight, -16.60% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity.