Madison Avenue Partners, LP

NEW YORK, NY · CIK 1801265 · 13F filing filed 2026-08-14

SEC-registered investment adviser since 2019 · limited partnership

Assets managed$3.9bn
Staff7 · 5 in investment roles
Main clients (by assets)Private funds 100%
Private funds1 (1 hedge) · $3.9bn gross assets
Websitemadisonavenuepartners.com
Form ADV · 2026-03-02SEC adviser record

Legal entityMADISON AVENUE PARTNERS, LP (US)

$2.3bn reported value +1.0% vs Q1 2026

25positions

77.1%in top 10

7 new 7 added 8 reduced 9 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	GRAHAM HLDGS CO COM CL B GHC	GHC	246,368	$281.2m12.11%	12.11%	Added +539	+539 0.2%
2	INVITATION HOMES INC COM INVH	INVH	8,335,309	$251.8m10.84%	10.84%	New
3	MARKEL GROUP INC COM MKL	MKL	112,325	$219.4m9.44%	9.44%	Added +24.4k	+24,436 27.8%
4	COUPANG INC CL A CPNG	CPNG	12,457,195	$216.4m9.31%	9.31%	Added +3.1m	+3,093,574 33.0%
5	MAGNUM ICE CREAM CO NV ORD SHS MICC	MICC	10,892,592	$189.6m8.16%	8.16%	Reduced -552.9k	-552,937 -4.8%
6	THERAVANCE BIOPHARMA INC COM 0TB	0TB	9,212,252	$156.6m6.74%	6.74%	Reduced -298.9k	-298,898 -3.1%
7	SOLVENTUM CORP COM SHS SOLV	SOLV	1,741,221	$134.3m5.78%	5.78%	Reduced -134.5k	-134,515 -7.2%
8	STAAR SURGICAL CO COM PAR $0.01 STAA	STAA	4,175,748	$119.8m5.16%	5.16%	Added +1.7m	+1,734,070 71.0%
9	INDIVIOR PHARMACEUTICALS INC COM INDV	INDV	2,874,368	$117.9m5.08%	5.08%	Reduced -1.4m	-1,440,794 -33.4%
10	GALAPAGOS NV SPON ADR LKFT	LKFT	3,447,807	$103.4m4.45%	4.45%	Added +982.6k	+982,628 39.9%
11	GLOBUS MED INC CL A GMED	GMED	935,216	$73.9m3.18%	3.18%	Added +217.7k	+217,740 30.4%
12	OCTAVE INTELLIGENCE PLC ORD SHS CL B OCTV	OCTV	4,222,663	$68.8m2.96%	2.96%	New
13	BRITISH AMERN TOB PLC SPONSORED ADR BTI	BTI	1,043,302	$64.4m2.77%	2.77%	Reduced -80.5k	-80,465 -7.2%
14	STAGWELL INC COM CL A STGW	STGW	8,014,322	$59.5m2.56%	2.56%	Unchanged
15	SANMINA CORPORATION COM SANM	SANM	188,322	$47.7m2.05%	2.05%	New
16	PRIMORIS SVCS CORP COM PRIM	PRIM	462,058	$45.8m1.97%	1.97%	New
17	UNITED STATES CELLULAR CORP COM AD	AD	1,109,463	$40.2m1.73%	1.73%	New
18	APARTMENT INVT & MGMT CO CL A AIV	AIV	12,374,991	$36.8m1.58%	1.58%	Unchanged
19	SANDISK CORP COM SNDK	SNDK	9,698	$22.1m0.95%	0.95%	Reduced -609.3k	-609,312 -98.4%
20	TURNING PT BRANDS INC COM TPB	TPB	247,823	$21.0m0.90%	0.90%	Added +100	+100 0.0%
21	SINCLAIR INC CL A SBGI	SBGI	1,383,470	$19.7m0.85%	0.85%	Reduced -90.0k	-90,014 -6.1%
22	MAGNERA CORP COM SHS MAGN	MAGN	1,302,066	$15.3m0.66%	0.66%	Reduced -288.6k	-288,550 -18.1%
23	MILLROSE PPTYS INC COM CL A MRP	MRP	298,461	$9.0m0.39%	0.39%	New
24	KEROS THERAPEUTICS INC COM KROS	KROS	626,583	$6.7m0.29%	0.29%	Unchanged
25	MONRO INC COM MNRO	MNRO	95,966	$1.6m0.07%	0.07%	New

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
ICON PLC ICLR	ICLR	1,282,838	$142.0m1.3m shares
MOLINA HEALTHCARE INC MOH	MOH	633,877	$84.5m633.9k shares
WILEY JOHN & SONS INC WLY	WLY	678,417	$25.8m678.4k shares
PRIMO BRANDS CORPORATION PRMB	PRMB	1,321,942	$24.9m1.3m shares
DNOW INC DNOW	DNOW	1,365,067	$16.3m1.4m shares
CENTRAL BANCOMPANY CBC	CBC	444,933	$10.7m444.9k shares
PAR TECHNOLOGY CORP PAR	PAR	447,878	$6.0m447.9k shares
FRANKLIN STR PPTYS CORP FSP	FSP	1,080,132	$717.7k1.1m shares
SHARKNINJA INC SN	SN	6,152	$651.5k6.2k shares

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

Company	Ticker	Stake	Change	Schedule	Last filed
THERAVANCE BIOPHARMA INC 0TB · 13G · filed 2026-08-14	0TB	17.7%≈ $156.6m		13G	2026-08-14
APARTMENT INVT & MGMT CO AIV · 13G · filed 2026-03-04	AIV	8.6%≈ $36.7m	new	13G	2026-03-04
STAAR SURGICAL CO STAA · 13G · filed 2026-08-14	STAA	8.4%≈ $119.8m	+2.6 pts	13G	2026-08-14
GRAHAM HLDGS CO GHC · 13G · filed 2026-08-14	GHC	7.5%≈ $281.2m	new	13G	2026-08-14
VERADIGM INC MDRX · 13G · filed 2026-01-29	MDRX	6.6%	new	13G	2026-01-29
ULTRAGENYX PHARMACEUTICAL IN RARE · 13G · filed 2026-10-20	RARE	6.4%≈ $210.6m	new	13G	2026-10-20
GALAPAGOS NV LKFT · 13G · filed 2026-06-23	LKFT	5.5%	new	13G	2026-06-23
ACELYRIN INC 13D · filed 2025-04-30		5.1%	new	13D	2025-04-30