Madison Avenue Partners, LP

CIK

1801265

Location

NEW YORK, NY

Portfolio Value

Mid $2,299,655,781

Diversification

Diversified

Filing Date

Global Rank

#1,107 / 8,623 ▲ 8 · as of Mar 2026

Top Industry

Computer Hardware 17.1%

3Y Alpha vs SPY

+38.0%

Period ended 4 months ago

Filed May 15, 2026 · 3mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–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

+275.7%

SPY

+65.3%

Annualised alpha

+37.2%

Max drawdown

−18.7%

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 13 quarters. Past performance does not predict future results.

Portfolio Concentration

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

Top Position

17.1%

+2.5 pts

Top 5

50.8%

−3.0 pts

Top 10

78.5%

−4.7 pts

HHI

791

Diversified−29

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Healthcare	35.8%	$823,182,274	9
Technology	17.4%	$399,252,026	2
Consumer Defensive	13.0%	$298,336,118	5
Industrials	12.0%	$276,163,115	2
Financial Services	7.8%	$178,881,834	2
Consumer Cyclical	7.7%	$177,436,660	2
Communication Services	4.1%	$95,324,654	3
Real Estate	2.2%	$51,079,100	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

3 positions

Ticker	Company	Δ Shares	Shares	Value
MICC	Magnum Ice Cream Co N.V.	+5,016,233	11,445,529	$171,110,658
SBGI	Sinclair, Inc.	+563,831	1,473,484	$19,066,882
LKFT	Lakefront Biotherapeutics NV	+252,010	2,465,179	$73,955,370
No positions match the current search.

Trimmed

Positions the filer reduced

10 positions

Ticker	Company	Δ Shares	Shares	Value
INDV	Indivior Pharmaceuticals, Inc.	−1,965,340	4,315,162	$131,526,137
GMED	Globus Medical Inc	−1,907,275	717,476	$61,817,732
FSP	Franklin Street Properties Corp /Ma/	−1,173,257	1,080,132	$712,887
SNDK	Sandisk Corp	−815,162	619,010	$393,281,813
CBC	Central Bancompany, Inc.	−548,946	444,933	$10,656,145
WLY	John Wiley & Sons, Inc.	−468,841	678,417	$25,847,687
KROS	Keros Therapeutics, Inc.	−197,124	626,583	$6,917,476
MAGN	Magnera Corp	−190,033	1,590,616	$15,126,758
SOLV	Solventum Corp	−112,322	1,875,736	$122,485,560
BTI	British American Tobacco p.l.c.	−100,000	1,123,767	$65,706,656
No positions match the current search.

New Positions

Positions the filer opened this quarter

7 positions

Ticker	Company	Shares	Value
CPNG	Coupang, Inc.	9,363,621	$176,785,164
ICLR	Icon PLC	1,282,838	$141,958,853
AIV	Apartment Investment & Management Co	12,374,991	$50,366,213
STAA	Staar Surgical Co	2,441,678	$45,659,378
PRMB	Primo Brands Corp	1,321,942	$24,892,167
DNOW	DNOW Inc.	1,365,067	$16,257,947
PAR	Par Technology Corp	447,878	$5,970,213
No positions match the current search.

Sold Out

Positions the filer fully exited

3 positions

Ticker	Company	Shares	Value
SOLS	Solstice Advanced Materials Inc.	2,782,460	$135,171,906
UNF	Unifirst Corp	303,844	$58,611,507
WK	Workiva Inc	59,946	$5,170,342
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

27 tracked positions · $2,299,655,781 total · filing declares 27 positions · $2,299,660,663 · as of Mar 31, 2026

All sectors Communication Services Consumer Cyclical Consumer Defensive Financial Services Healthcare Industrials Real Estate Technology

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
SNDK	Sandisk Corp Technology	Reduced	619,010	-815,162	$393,281,813	+15.5%	17.10%
GHC	Graham Holdings Co Industrials	Held	245,829	0	$259,905,168	−3.8%	11.30%
CPNG	Coupang, Inc. Consumer Cyclical	NEW	9,363,621	NEW	$176,785,164	NEW	7.69%
MICC	Magnum Ice Cream Co N.V. Consumer Defensive	Added	11,445,529	+5,016,233	$171,110,658	+67.9%	7.44%
MKL	Markel Group Inc. Financial Services	Held	87,889	0	$168,225,689	−11.0%	7.32%
TBPH	Theravance Biopharma, Inc. Healthcare	Held	9,511,150	0	$154,365,964	−13.3%	6.71%
ICLR	Icon PLC Healthcare	NEW	1,282,838	NEW	$141,958,853	NEW	6.17%
INDV	Indivior Pharmaceuticals, Inc. Healthcare	Reduced	4,315,162	-1,965,340	$131,526,137	−41.6%	5.72%
SOLV	Solventum Corp Healthcare	Reduced	1,875,736	-112,322	$122,485,560	−22.2%	5.33%
MOH	Molina Healthcare, Inc. Healthcare	Held	633,877	0	$84,495,804	−23.2%	3.67%
LKFT	Lakefront Biotherapeutics NV Healthcare	Added	2,465,179	+252,010	$73,955,370	+2.2%	3.22%
BTI	British American Tobacco p.l.c. Consumer Defensive	Reduced	1,123,767	-100,000	$65,706,656	−5.2%	2.86%
GMED	Globus Medical Inc Healthcare	Reduced	717,476	-1,907,275	$61,817,732	−73.0%	2.69%
STGW	Stagwell Inc Communication Services	Held	8,014,322	0	$50,410,085	+28.6%	2.19%
AIV	Apartment Investment & Management Co Real Estate	NEW	12,374,991	NEW	$50,366,213	NEW	2.19%
STAA	Staar Surgical Co Healthcare	NEW	2,441,678	NEW	$45,659,378	NEW	1.99%
WLY	John Wiley & Sons, Inc. Communication Services	Reduced	678,417	-468,841	$25,847,687	−26.4%	1.12%
PRMB	Primo Brands Corp Consumer Defensive	NEW	1,321,942	NEW	$24,892,167	NEW	1.08%
TPB	Turning Point Brands, Inc. Consumer Defensive	Held	247,723	0	$21,499,879	−19.9%	0.93%
SBGI	Sinclair, Inc. Communication Services	Added	1,473,484	+563,831	$19,066,882	+37.0%	0.83%
DNOW	DNOW Inc. Industrials	NEW	1,365,067	NEW	$16,257,947	NEW	0.71%
MAGN	Magnera Corp Consumer Defensive	Reduced	1,590,616	-190,033	$15,126,758	−43.9%	0.66%
CBC	Central Bancompany, Inc. Financial Services	Reduced	444,933	-548,946	$10,656,145	−55.5%	0.46%
KROS	Keros Therapeutics, Inc. Healthcare	Reduced	626,583	-1,020,831	$6,917,476	−79.4%	0.30%
PAR	Par Technology Corp Technology	NEW	447,878	NEW	$5,970,213	NEW	0.26%
FSP	Franklin Street Properties Corp /Ma/ Real Estate	Reduced	1,080,132	-1,173,257	$712,887	−66.7%	0.03%
SN	SharkNinja, Inc. Consumer Cyclical	Held	6,152	0	$651,496	−5.4%	0.03%

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.