Madison Avenue Partners, LP Quant / Systematic

CIK: 0001801265 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Nov 14, 2025

Total Value ($000): $1,675,691 (100.0% shares, 0.0% debt)

Holdings (20)

GHC GRAHAM HLDGS CO 17.3%

Value ($000) $289,417 Shares 245,829 Est. Cost $533.90 Unrealized +93.0%

SNDK SANDISK CORP 13.8%

Value ($000) $231,415 Shares 2,062,521 Est. Cost $38.24 Unrealized +52.7%

MKL MARKEL GROUP INC 9.6%

Value ($000) $161,147 Shares 84,310 Est. Cost $1839.75 Unrealized +6.6%

— INDIVIOR PLC 9.3%

Value ($000) $155,837 Shares 6,463,585 Est. Cost $9.97 Unrealized —

GMED GLOBUS MED INC 8.7%

Value ($000) $145,933 Shares 2,548,163 Est. Cost $62.30 Unrealized -7.6%

SOLV SOLVENTUM CORP 8.7%

Value ($000) $145,151 Shares 1,988,376 Est. Cost $60.63 Unrealized +20.9%

TBPH THERAVANCE BIOPHARMA INC 8.3%

Value ($000) $138,863 Shares 9,511,150 Est. Cost $10.06 Unrealized +25.6%

GLPG GALAPAGOS NV 4.5%

Value ($000) $76,062 Shares 2,195,775 Est. Cost $28.96 Unrealized —

BTI BRITISH AMERN TOB PLC 3.9%

Value ($000) $64,958 Shares 1,223,767 Est. Cost $53.08 Unrealized —

WLY WILEY JOHN & SONS INC 2.8%

Value ($000) $47,375 Shares 1,170,624 Est. Cost $35.96 Unrealized +9.9%

STGW STAGWELL INC 2.7%

Value ($000) $45,121 Shares 8,014,322 Est. Cost $6.73 Unrealized -21.2%

NWSA NEWS CORP NEW 2.7%

Value ($000) $44,632 Shares 1,453,322 Est. Cost $29.56 Unrealized 0.0%

KROS KEROS THERAPEUTICS INC 2.6%

Value ($000) $42,844 Shares 2,708,218 Est. Cost $13.50 Unrealized +9.4%

MAGN MAGNERA CORP 2.0%

Value ($000) $33,194 Shares 2,832,281 Est. Cost $20.46 Unrealized -39.3%

AIV APARTMENT INVT & MGMT CO 1.7%

Value ($000) $28,685 Shares 3,617,314 Est. Cost $8.22 Unrealized —

CTRI CENTURI HOLDINGS INC 0.9%

Value ($000) $14,674 Shares 693,136 Est. Cost $21.22 Unrealized 0.0%

FSP FRANKLIN STR PPTYS CORP 0.2%

Value ($000) $4,129 Shares 2,580,357 Est. Cost $2.37 Unrealized —

NNI NELNET INC 0.2%

Value ($000) $3,954 Shares 31,535 Est. Cost $87.89 Unrealized +42.3%

ALMS ALUMIS INC 0.1%

Value ($000) $1,667 Shares 417,777 Est. Cost $4.72 Unrealized -12.8%

SN SHARKNINJA INC 0.0%

Value ($000) $635 Shares 6,152 Est. Cost $36.57 Unrealized +212.3%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
GHC	GRAHAM HLDGS CO	245,829	$289,417	17.3%	$533.90	+93.0%	COM CL B	384637104
SNDK	SANDISK CORP	2,062,521	$231,415	13.8%	$38.24	+52.7%	COM	80004C200
MKL	MARKEL GROUP INC	84,310	$161,147	9.6%	$1839.75	+6.6%	COM	570535104
—	INDIVIOR PLC	6,463,585	$155,837	9.3%	$9.97	—	ORD	G4766E116
GMED	GLOBUS MED INC	2,548,163	$145,933	8.7%	$62.30	-7.6%	CL A	379577208
SOLV	SOLVENTUM CORP	1,988,376	$145,151	8.7%	$60.63	+20.9%	COM SHS	83444M101
TBPH	THERAVANCE BIOPHARMA INC	9,511,150	$138,863	8.3%	$10.06	+25.6%	COM	G8807B106
GLPG	GALAPAGOS NV	2,195,775	$76,062	4.5%	$28.96	—	SPON ADR	36315X101
BTI	BRITISH AMERN TOB PLC	1,223,767	$64,958	3.9%	$53.08	—	SPONSORED ADR	110448107
WLY	WILEY JOHN & SONS INC	1,170,624	$47,375	2.8%	$35.96	+9.9%	CL A	968223206
STGW	STAGWELL INC	8,014,322	$45,121	2.7%	$6.73	-21.2%	COM CL A	85256A109
NWSA	NEWS CORP NEW	1,453,322	$44,632	2.7%	$29.56	0.0%	CL A	65249B109
KROS	KEROS THERAPEUTICS INC	2,708,218	$42,844	2.6%	$13.50	+9.4%	COM	492327101
MAGN	MAGNERA CORP	2,832,281	$33,194	2.0%	$20.46	-39.3%	COM SHS	55939A107
AIV	APARTMENT INVT & MGMT CO	3,617,314	$28,685	1.7%	$8.22	—	CL A	03748R747
CTRI	CENTURI HOLDINGS INC	693,136	$14,674	0.9%	$21.22	0.0%	COM SHS	155923105
FSP	FRANKLIN STR PPTYS CORP	2,580,357	$4,129	0.2%	$2.37	—	COM	35471R106
NNI	NELNET INC	31,535	$3,954	0.2%	$87.89	+42.3%	CL A	64031N108
ALMS	ALUMIS INC	417,777	$1,667	0.1%	$4.72	-12.8%	COM	022307102
SN	SHARKNINJA INC	6,152	$635	0.0%	$36.57	+212.3%	COM SHS	G8068L108