Superinvestor Tracker
← All Investors

Newamsterdam Pharma Company

Holders

2

Combined Value

$232.83M

Combined Shares

7,273,713

Investor Activity Chart

Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.

$12.90$21.53$30.15$38.78Q2'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25Q1'26Q2 2024 · implied price $19.21Q3 2024 · implied price $16.60Q4 2024 · implied price $25.70Q1 2025 · implied price $20.47Q2 2025 · implied price $18.11Q3 2025 · implied price $28.44Q4 2025 · implied price $35.08Q1 2026 · implied price $32.01Andreas Halvorsen - Viking Global Investors · bought 8,024,565 shares @ ~$19.21 · Q2 2024 (new position)Andreas Halvorsen - Viking Global Investors · sold 1,046,031 shares @ ~$25.70 · Q4 2024Stanley Druckenmiller - Duquesne Family Office · bought 1,091,525 shares @ ~$28.44 · Q3 2025Andreas Halvorsen - Viking Global Investors · sold 503,000 shares @ ~$28.44 · Q3 2025Stanley Druckenmiller - Duquesne Family Office · bought 1,146,446 shares @ ~$35.08 · Q4 2025Andreas Halvorsen - Viking Global Investors · sold 2,271,967 shares @ ~$35.08 · Q4 2025Stanley Druckenmiller - Duquesne Family Office · bought 287,535 shares @ ~$16.60 · Q3 2024 (new position)Stanley Druckenmiller - Duquesne Family Office · bought 512,825 shares @ ~$20.47 · Q1 2025Stanley Druckenmiller - Duquesne Family Office · bought 31,815 shares @ ~$18.11 · Q2 2025BUYSELLIMPLIED PRICE

Held By

Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.

InvestorValue% of PortfolioAvg Buy PriceGainLast ActivityAs of
Andreas Halvorsen - Viking Global Investors$134.56M0.38%~$19.21—SELL Q4 2025Q1 2026
Stanley Druckenmiller - Duquesne Family Office$98.28M2.91%~$28.37—BUY Q4 2025Q1 2026

Recent Activity

Latest position changes by tracked investors. Prices are estimates implied from 13F filings.

QuarterInvestorActionEst. ValueEst. Price
Q4 2025Andreas Halvorsen - Viking Global InvestorsSELL−$79.70M~$35.08
Q4 2025Stanley Druckenmiller - Duquesne Family OfficeBUY+$40.22M~$35.08
Q3 2025Stanley Druckenmiller - Duquesne Family OfficeBUY+$31.04M~$28.44
Q3 2025Andreas Halvorsen - Viking Global InvestorsSELL−$14.31M~$28.44
Q2 2025Stanley Druckenmiller - Duquesne Family OfficeBUY+$576.2K~$18.11
Q1 2025Stanley Druckenmiller - Duquesne Family OfficeBUY+$10.50M~$20.47
Q4 2024Andreas Halvorsen - Viking Global InvestorsSELL−$26.88M~$25.70
Q3 2024Stanley Druckenmiller - Duquesne Family OfficeNEW BUY+$4.77M~$16.60
Q2 2024Andreas Halvorsen - Viking Global InvestorsNEW BUY+$154.15M~$19.21

Ownership History

Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.

PeriodHoldersTotal SharesΔ SharesTotal ValueImplied Price
Q1 202627,273,713UNCH$232.83M$32.01
Q4 202527,273,713-13.4%$255.16M$35.08
Q3 202528,399,234+7.5%$238.87M$28.44
Q2 202527,810,709+0.4%$141.45M$18.11
Q1 202527,778,894+7.1%$159.23M$20.47
Q4 202427,266,069-12.6%$186.74M$25.70
Q3 202428,312,100+3.6%$137.98M$16.60
Q2 202418,024,565—$154.15M$19.21