Merck & Co., Inc.

CIK

310158

Location

RAHWAY, NJ

Portfolio Value

Small $316,133,060

Diversification

Highly concentrated

Filing Date

Global Rank

#3,346 / 8,622 ▲ 525 · as of Mar 2026

Top Industry

Biotechnology 71.7%

3Y Alpha vs SPY

+44.8%

Period ended 4 months ago

Filed May 13, 2026 · 3mo

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

+103.7%

SPY

+23.3%

Annualised alpha

+47.8%

Max drawdown

−40.8%

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. It tracks 100% of reported value on average across 6 quarters. Past performance does not predict future results.

Portfolio Concentration

10 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

37.1%

−7.7 pts

Top 5

96.7%

−2.9 pts

Top 10

100.0%

0.0 pts

HHI

2,657

Highly concentrated−685

Portfolio Trend

6 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Healthcare	100.0%	$316,133,060	10

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

1 positions

Ticker	Company	Δ Shares	Shares	Value	Open
HURA	TuHURA Biosciences, Inc./NV	+5,495	19,445	$34,806
No positions match the current search.

Trimmed

Positions the filer reduced

1 positions

Ticker	Company	Δ Shares	Shares	Value	Open
XLO	Xilio Therapeutics, Inc.	−1,377,776	105,982	$891,308
No positions match the current search.

New Positions

Positions the filer opened this quarter

2 positions

Ticker	Company	Shares	Value
EIKN	Eikon Therapeutics, Inc.	1,666,666	$17,633,326
AKTS	Aktis Oncology, Inc.	952,844	$17,046,379
No positions match the current search.

Sold Out

Positions the filer fully exited

No qualifying positions this quarter.

Portfolio Positions

Compact Export CSV View 13F filing

10 tracked positions · $316,133,060 total · filing declares 14 positions · $349,437,632 · as of Mar 31, 2026

All sectors Healthcare

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
MRNA	Moderna, Inc. Healthcare	Held	2,308,190	0	$117,256,052	+72.3%	37.09%
PSNL	Personalis, Inc. Healthcare	Held	14,044,943	0	$89,466,286	−20.0%	28.30%
KYMR	Kymera Therapeutics, Inc. Healthcare	Held	772,165	0	$64,313,622	+7.0%	20.34%
EIKN	Eikon Therapeutics, Inc. Healthcare	NEW	1,666,666	NEW	$17,633,326	NEW	5.58%
AKTS	Aktis Oncology, Inc. Healthcare	NEW	952,844	NEW	$17,046,379	NEW	5.39%
ALEC	Alector, Inc. Healthcare	Held	3,545,719	0	$7,623,295	+37.8%	2.41%
VRDN	Viridian Therapeutics, Inc.\DE Healthcare	Held	93,414	0	$1,827,177	−37.1%	0.58%
XLO	Xilio Therapeutics, Inc. Healthcare	Reduced	105,982	-1,377,776	$891,308	−6.1%	0.28%
NEUP	Neuphoria Therapeutics Inc. Healthcare	Held	10,027	0	$40,809	+4.9%	0.01%
HURA	TuHURA Biosciences, Inc./NV Healthcare	Added	19,445	+5,495	$34,806	+229.6%	0.01%

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.