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DIADEMA PARTNERS LP

Location
MORRISTOWN, NJ
Portfolio Value
Small $569,565,326
Diversification
Diversified
Filing Date
Global Rank
#2,442 / 8,622 ▲ 178 · as of Mar 2026
Top Industry
Biotechnology 78.1%
3Y Alpha vs SPY
+4.5%
Period ended 4 months ago
Filed May 15, 2026 · 2mo
6 quarters · since Dec 2024

Clone Performance

Feb 2025–Jul 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
+45.4%
SPY
+23.3%
Annualised alpha
+13.9%
Max drawdown
−19.0%

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. It tracks 38% of reported value on average across 6 quarters. Past performance does not predict future results.

Portfolio Concentration

110 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
9.1%
−0.0 pts
Top 5
34.4%
+0.2 pts
Top 10
51.9%
+0.7 pts
HHI
369
Dec 2024 → Mar 2026 · range 259 – 619
Diversified+9

Portfolio Trend

6 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Healthcare 100.0% $569,565,326

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

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

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

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

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
110 tracked positions · $569,565,326 total · as of Mar 31, 2026
Showing 1–50 of 110 positions by value · page 1 of 3
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.