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Foresite Capital Management IV, LLC

Location
West Hollywood, CA
Portfolio Value
Small $290,151,347
Diversification
Highly concentrated
Filing Date
Global Rank
#3,780 / 8,651 ▲ 240
Top Industry
Biotechnology 100.0%
3Y Alpha vs SPY
-6.9%
Period ended 58 days ago
Filed Aug 14, 2026 · 13d
26 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+46.4%
SPY
+74.1%
Annualised alpha
-6.8%
Max drawdown
−64.8%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends. Captured split ratios restate closes onto one basis; only an unusable ratio can exclude earlier closes for that listing. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

6 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
57.0%
+0.0 pts
Top 5
98.1%
+7.5 pts
Top 10
100.0%
0.0 pts
HHI
3,840
Sep 2023 → Jun 2026 · range 3,591 – 6,234
Highly concentrated+232

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Healthcare 100.0% $290,151,347

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
2 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
No qualifying positions this quarter.

New Positions

Positions the filer opened this quarter
1 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
3 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
6 tracked positions · $290,151,347 total · filing declares 6 positions · $290,151,348 · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.