13F Notebook
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Fund detail

Pershing Square (Bill Ackman)

activist, concentrated, active

Quarters 53
2026-06-30 $19.47B
Positions 14
Showing 5 of 5 rows (filtered from 16)

Price is the latest implied close from the selected quarter's 13F (value ÷ shares). Est. Cost is a running average that assumes each quarter's trades cleared near the midpoint of consecutive 13F closes (or yfinance VWAP when available). Most accurate for slow accumulators, least accurate for activists who build positions in a few days. PUT/CALL rows are option exposure and are marked separately.

# Issuer Value ↓ Weight Shares Share Δ Share Δ % Prev Weight First Held Price Est. Cost Unrealized % Status
1 VISA INC V $1.12B 5.76% 3,270,470 +3,270,470 2026-06-30 $343 ~$343 +0.00%
2 MASTERCARD INCORPORATED MA $1.09B 5.61% 2,124,646 +2,124,646 2026-06-30 $514 ~$514 +0.00%
3 S&P GLOBAL INC SPGI $1.06B 5.43% 2,593,155 +2,593,155 2026-06-30 $407 ~$407 +0.00%
4 NETFLIX INC. NFLX $934.0M 4.80% 13,081,465 +13,081,465 2022-03-31 $71 ~$37 +90.61%
5 PERSHING SQUARE USA LTD $149.5M 0.77% 4,000,000 +4,000,000 2026-06-30 $37 ~$37 +0.00%