Madison Avenue Partners, LP

Registered adviser

CIK

1801265

Location

NEW YORK, NY

Portfolio Value

Mid $2,323,000,190

Diversification

Diversified

Filing Date

Global Rank

#1,462 / 8,819 ▼ 116

Top Industry

REIT - Residential 12.8%

Period ended 4 months ago

Filed Aug 14, 2026 · 3mo

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 298610

Roster of Oct 1, 2026

Regulatory AUM

$3,930,792,967

Main clients

Pooled investment vehicles (100% of AUM)

Private funds

1 fund · Hedge funds

Focus by fund count, roster of Oct 1, 2026

$3,930,792,967 gross assets

LEI

549300LG5WXI9IJ4IC34

Private funds on Schedule D 7.B.(1)

As filed Mar 5, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$1,863,533,706 gross assets in 1 fund Hedge funds $1,863,533,706 (1)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$3,930,792,967	Pooled investment vehicles (100%)
Apr 2025 to Mar 2026	$2,302,966,539	Pooled investment vehicles (100%)
Apr 2024 to Mar 2025	$1,863,533,706	Pooled investment vehicles (100%)
May 2023 to Mar 2024	$1,604,741,217	Pooled investment vehicles (100%)
Apr 2023	$1,604,741,217	Pooled investment vehicles (100%)
Apr 2022 to Mar 2023	$1,409,110,929	Pooled investment vehicles (100%)

3 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Concentrated

The top 10 positions are 77.1% of the book (60%+)

Turnover

Medium turnover

83.5% over the last four quarters (30% to under 100%)

Horizon

Horizon unknown

The value-weighted holding period is at least 7.7 quarters, but 12.1% of the book was already held when coverage starts

Closest benchmark: the Nasdaq-100 as of 2026-06-30, active share 99.1%; sector active share 47.1% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

25 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

12.1%

−5.0 pts

Top 5

49.9%

−1.0 pts

Top 10

77.1%

−1.4 pts

HHI

708

Diversified−83

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Healthcare	30.7%	$712,642,120	7
Industrials	14.1%	$327,008,550	2
Real Estate	12.8%	$297,532,160	3
Consumer Defensive	12.5%	$290,391,500	4
Financial Services	9.4%	$219,371,848	1
Consumer Cyclical	9.4%	$218,023,455	2
Technology	6.0%	$138,540,570	3
Communication Services	5.1%	$119,489,987	3

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

7 positions

Ticker	Company	Δ Shares	Shares	Value
CPNG	Coupang, Inc.	+3,093,574	12,457,195	$216,381,477
STAA	Staar Surgical Co	+1,734,070	4,175,748	$119,802,210
LKFT	Lakefront Biotherapeutics NV	+982,628	3,447,807	$103,365,253
GMED	Globus Medical Inc	+217,740	935,216	$73,891,416
MKL	Markel Group Inc.	+24,436	112,325	$219,371,848
GHC	Graham Holdings Co	+539	246,368	$281,209,362
TPB	Turning Point Brands, Inc.	+100	247,823	$21,017,868
No positions match the current search.

Trimmed

Positions the filer reduced

8 positions

Ticker	Company	Δ Shares	Shares	Value
INDV	Indivior Pharmaceuticals, Inc.	−1,440,794	2,874,368	$117,935,319
SNDK	Sandisk Corp	−609,312	9,698	$22,050,633
MICC	Magnum Ice Cream Co N.V.	−552,937	10,892,592	$189,640,026
—		−298,898	9,212,252	$156,608,284
MAGN	Magnera Corp	−288,550	1,302,066	$15,299,275
SOLV	Solventum Corp	−134,515	1,741,221	$134,335,200
SBGI	Sinclair, Inc.	−90,014	1,383,470	$19,714,447
BTI	British American Tobacco p.l.c.	−80,465	1,043,302	$64,434,331
No positions match the current search.

New Positions

Positions the filer opened this quarter

7 positions

Ticker	Company	Shares	Value
INVH	Invitation Homes Inc.	8,335,309	$251,809,684
OCTV	Octave Intelligence plc	4,222,663	$68,829,406
SANM	Sanmina Corp	188,322	$47,660,531
PRIM	Primoris Services Corp	462,058	$45,799,188
AD	Array Digital Infrastructure, Inc.	1,109,463	$40,229,128
MRP	Millrose Properties, Inc.	298,461	$8,968,753
MNRO	Monro, Inc.	95,966	$1,641,978
No positions match the current search.

Sold Out

Positions the filer fully exited

9 positions

Ticker	Company	Shares	Value
ICLR	Icon PLC	1,282,838	$141,958,853
MOH	Molina Healthcare, Inc.	633,877	$84,495,804
WLY	John Wiley & Sons, Inc.	678,417	$25,847,687
PRMB	Primo Brands Corp	1,321,942	$24,892,167
DNOW	DNOW Inc.	1,365,067	$16,257,947
CBC	Central Bancompany, Inc.	444,933	$10,656,145
PAR	Par Technology Corp	447,878	$5,970,213
FSP	Franklin Street Properties Corp	1,080,132	$712,887
SN	SharkNinja, Inc.	6,152	$651,496
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

25 tracked positions · $2,323,000,190 total · filing declares 25 positions · $2,323,000,202 · as of Jun 30, 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	Held (qtrs)	Est. cost/share	% of Portfolio
GHC	Graham Holdings Co Industrials	Added	246,368	+539	$281,209,362	+8.2%	26+	before history	12.11%
INVH	Invitation Homes Inc. Real Estate	NEW	8,335,309	NEW	$251,809,684	NEW	1	$28.29	10.84%
MKL	Markel Group Inc. Financial Services	Added	112,325	+24,436	$219,371,848	+30.4%	6	$1,851.68	9.44%
CPNG	Coupang, Inc. Consumer Cyclical	Added	12,457,195	+3,093,574	$216,381,477	+22.4%	2	$19.20	9.31%
MICC	Magnum Ice Cream Co N.V. Consumer Defensive	Reduced	10,892,592	-552,937	$189,640,026	+10.8%	3	unpriced	8.16%
		Reduced	9,212,252	-298,898	$156,608,284	+1.5%	20	$10.06	6.74%
SOLV	Solventum Corp Healthcare	Reduced	1,741,221	-134,515	$134,335,200	+9.7%	9	$60.63	5.78%
STAA	Staar Surgical Co Healthcare	Added	4,175,748	+1,734,070	$119,802,210	+162.4%	2	$22.71	5.16%
INDV	Indivior Pharmaceuticals, Inc. Healthcare	Reduced	2,874,368	-1,440,794	$117,935,319	−10.3%	3	$30.53	5.08%
LKFT	Lakefront Biotherapeutics NV Healthcare	Added	3,447,807	+982,628	$103,365,253	+39.8%	5	$28.23	4.45%
GMED	Globus Medical Inc Healthcare	Added	935,216	+217,740	$73,891,416	+19.5%	5	$67.89	3.18%
OCTV	Octave Intelligence plc Technology	NEW	4,222,663	NEW	$68,829,406	NEW	1	$18.36	2.96%
BTI	British American Tobacco p.l.c. Consumer Defensive	Reduced	1,043,302	-80,465	$64,434,331	−1.9%	4	$54.29	2.77%
STGW	Stagwell Inc Communication Services	Held	8,014,322	0	$59,546,412	+18.1%	20	$6.73	2.56%
SANM	Sanmina Corp Technology	NEW	188,322	NEW	$47,660,531	NEW	1	$219.13	2.05%
PRIM	Primoris Services Corp Industrials	NEW	462,058	NEW	$45,799,188	NEW	1	$131.47	1.97%
AD	Array Digital Infrastructure, Inc. Communication Services	NEW	1,109,463	NEW	$40,229,128	NEW	1	$47.54	1.73%
AIV	Apartment Investment & Management Co Real Estate	Held	12,374,991	0	$36,753,723	−27.0%	2	$5.23	1.58%
SNDK	Sandisk Corp Technology	Reduced	9,698	-609,312	$22,050,633	−94.4%	5	$38.24	0.95%
TPB	Turning Point Brands, Inc. Consumer Defensive	Added	247,823	+100	$21,017,868	−2.2%	3	$97.78	0.90%
SBGI	Sinclair, Inc. Communication Services	Reduced	1,383,470	-90,014	$19,714,447	+3.4%	3	$14.73	0.85%
MAGN	Magnera Corp Consumer Defensive	Reduced	1,302,066	-288,550	$15,299,275	+1.1%	7	unpriced	0.66%
MRP	Millrose Properties, Inc. Real Estate	NEW	298,461	NEW	$8,968,753	NEW	1	$28.95	0.39%
KROS	Keros Therapeutics, Inc. Healthcare	Held	626,583	0	$6,704,438	−3.1%	5	$13.51	0.29%
MNRO	Monro, Inc. Consumer Cyclical	NEW	95,966	NEW	$1,641,978	NEW	1	$16.37	0.07%

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.