Madison Avenue Partners, LP Quant / Systematic

CIK: 0001801265 · Show all filings

Period: Q2 2025 (← Previous) (Next →)

Filing Date: Aug 14, 2025

Total Value ($000): $1,497,802 (100.0% shares, 0.0% debt)

Holdings (26)

GHC GRAHAM HLDGS CO 15.5%

Value ($000) $232,068 Shares 245,271 Est. Cost $533.90 Unrealized +75.5%

SOLV SOLVENTUM CORP 11.4%

Value ($000) $170,211 Shares 2,244,344 Est. Cost $60.63 Unrealized +16.8%

MKL MARKEL GROUP INC 11.2%

Value ($000) $168,397 Shares 84,310 Est. Cost $1839.75 Unrealized +1.9%

SNDK SANDISK CORP 10.8%

Value ($000) $161,950 Shares 3,571,109 Est. Cost $38.24 Unrealized 0.0%

— INDIVIOR PLC 7.8%

Value ($000) $116,773 Shares 7,922,178 Est. Cost $9.97 Unrealized —

TBPH THERAVANCE BIOPHARMA INC 7.0%

Value ($000) $104,908 Shares 9,511,150 Est. Cost $10.06 Unrealized -3.4%

GMED GLOBUS MED INC 6.7%

Value ($000) $101,051 Shares 1,712,148 Est. Cost $64.61 Unrealized 0.0%

WLY WILEY JOHN & SONS INC 6.1%

Value ($000) $91,612 Shares 2,052,696 Est. Cost $35.96 Unrealized +13.7%

— SAGE THERAPEUTICS INC 3.7%

Value ($000) $55,423 Shares 6,077,065 Est. Cost $8.26 Unrealized —

GLPG GALAPAGOS NV 3.5%

Value ($000) $52,538 Shares 1,877,011 Est. Cost $27.99 Unrealized —

MAGN MAGNERA CORP 2.7%

Value ($000) $40,396 Shares 3,344,005 Est. Cost $20.46 Unrealized -32.8%

STGW STAGWELL INC 2.4%

Value ($000) $36,064 Shares 8,014,322 Est. Cost $6.73 Unrealized -25.3%

KROS KEROS THERAPEUTICS INC 2.4%

Value ($000) $35,931 Shares 2,691,465 Est. Cost $13.50 Unrealized 0.0%

INVX INNOVEX INTERNATIONAL INC 1.8%

Value ($000) $27,616 Shares 1,767,997 Est. Cost $16.04 Unrealized -4.2%

MRP MILLROSE PPTYS INC 1.6%

Value ($000) $23,544 Shares 825,804 Est. Cost $28.51 Unrealized —

NNI NELNET INC 1.2%

Value ($000) $17,467 Shares 144,214 Est. Cost $87.89 Unrealized +27.1%

— CARGO THERAPEUTICS INC 1.2%

Value ($000) $17,278 Shares 4,193,626 Est. Cost $4.12 Unrealized —

CNNE CANNAE HLDGS INC 0.9%

Value ($000) $14,058 Shares 674,250 Est. Cost $18.22 Unrealized -0.9%

AIV APARTMENT INVT & MGMT CO 0.9%

Value ($000) $12,749 Shares 1,473,826 Est. Cost $8.65 Unrealized —

ALMS ALUMIS INC 0.4%

Value ($000) $5,527 Shares 1,842,269 Est. Cost $4.72 Unrealized 0.0%

FSP FRANKLIN STR PPTYS CORP 0.3%

Value ($000) $4,232 Shares 2,580,357 Est. Cost $2.37 Unrealized —

ARVN ARVINAS INC 0.2%

Value ($000) $3,680 Shares 500,000 Est. Cost $7.37 Unrealized 0.0%

PLRX PLIANT THERAPEUTICS INC 0.2%

Value ($000) $2,587 Shares 2,230,012 Est. Cost $4.91 Unrealized -71.2%

CMCO COLUMBUS MCKINNON CORP N Y 0.0%

Value ($000) $702 Shares 45,961 Est. Cost $25.50 Unrealized -40.9%

SN SHARKNINJA INC 0.0%

Value ($000) $609 Shares 6,152 Est. Cost $36.57 Unrealized +136.4%

OVID OVID THERAPEUTICS INC 0.0%

Value ($000) $433 Shares 1,311,362 Est. Cost $2.26 Unrealized -86.6%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
GHC	GRAHAM HLDGS CO	245,271	$232,068	15.5%	$533.90	+75.5%	COM CL B	384637104
SOLV	SOLVENTUM CORP	2,244,344	$170,211	11.4%	$60.63	+16.8%	COM SHS	83444M101
MKL	MARKEL GROUP INC	84,310	$168,397	11.2%	$1839.75	+1.9%	COM	570535104
SNDK	SANDISK CORP	3,571,109	$161,950	10.8%	$38.24	0.0%	COM	80004C200
—	INDIVIOR PLC	7,922,178	$116,773	7.8%	$9.97	—	ORD	G4766E116
TBPH	THERAVANCE BIOPHARMA INC	9,511,150	$104,908	7.0%	$10.06	-3.4%	COM	G8807B106
GMED	GLOBUS MED INC	1,712,148	$101,051	6.7%	$64.61	0.0%	CL A	379577208
WLY	WILEY JOHN & SONS INC	2,052,696	$91,612	6.1%	$35.96	+13.7%	CL A	968223206
—	SAGE THERAPEUTICS INC	6,077,065	$55,423	3.7%	$8.26	—	COM	78667J108
GLPG	GALAPAGOS NV	1,877,011	$52,538	3.5%	$27.99	—	SPON ADR	36315X101
MAGN	MAGNERA CORP	3,344,005	$40,396	2.7%	$20.46	-32.8%	COM SHS	55939A107
STGW	STAGWELL INC	8,014,322	$36,064	2.4%	$6.73	-25.3%	COM CL A	85256A109
KROS	KEROS THERAPEUTICS INC	2,691,465	$35,931	2.4%	$13.50	0.0%	COM	492327101
INVX	INNOVEX INTERNATIONAL INC	1,767,997	$27,616	1.8%	$16.04	-4.2%	COM	457651107
MRP	MILLROSE PPTYS INC	825,804	$23,544	1.6%	$28.51	—	COM CL A	601137102
NNI	NELNET INC	144,214	$17,467	1.2%	$87.89	+27.1%	CL A	64031N108
—	CARGO THERAPEUTICS INC	4,193,626	$17,278	1.2%	$4.12	—	COM	14179K101
CNNE	CANNAE HLDGS INC	674,250	$14,058	0.9%	$18.22	-0.9%	COM	13765N107
AIV	APARTMENT INVT & MGMT CO	1,473,826	$12,749	0.9%	$8.65	—	CL A	03748R747
ALMS	ALUMIS INC	1,842,269	$5,527	0.4%	$4.72	0.0%	COM	022307102
FSP	FRANKLIN STR PPTYS CORP	2,580,357	$4,232	0.3%	$2.37	—	COM	35471R106
ARVN	ARVINAS INC	500,000	$3,680	0.2%	$7.37	0.0%	COM	04335A105
PLRX	PLIANT THERAPEUTICS INC	2,230,012	$2,587	0.2%	$4.91	-71.2%	COM	729139105
CMCO	COLUMBUS MCKINNON CORP N Y	45,961	$702	0.0%	$25.50	-40.9%	COM	199333105
SN	SHARKNINJA INC	6,152	$609	0.0%	$36.57	+136.4%	COM SHS	G8068L108
OVID	OVID THERAPEUTICS INC	1,311,362	$433	0.0%	$2.26	-86.6%	COM	690469101