Skip to content

13F-HR filed by Madison Avenue Partners, LP

Madison Avenue Partners, LP filed this 13F-HR for the quarter ended 2025-09-30, filed 2025-11-14, with 20 holding rows worth $1,675,690,898.

Accession
0001801265-25-000008
Filed
2025-11-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q3 2025

A holdings report, 20 entries on the cover page, a total value of $1,675,690,898 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,675,690,897 with VALUE read as dollars as filed, 13F file number 028-20035. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
GRAHAM HLDGS CO COM CL B384637104Stock245,829$289,416,940dollars as filed
SanDisk Corporation80004C200COM2,062,521$231,414,856dollars as filed
MARKELGROUPINC570535104STOK84,310$161,146,762dollars as filed
Indivior PLCG4766E116Common Stock6,463,585$155,837,034dollars as filed
GLOBUS MED INC CL A379577208Stock2,548,163$145,933,295dollars as filed
SOLVENTUM CORP COM SHS83444M101Stock1,988,376$145,151,448dollars as filed
THERAVANCE BIOPHARMA INCG8807B106COM9,511,150$138,862,790dollars as filed
LAKEFRONT BIOTHERAPEUTICS NV36315X101SPON ADR2,195,775$76,061,646dollars as filed
BRITISH AMERN TOB PLC SPONSORED ADR110448107ADR1,223,767$64,957,552dollars as filed
WILEY JOHN & SONS INC968223206CL A1,170,624$47,375,153dollars as filed
STAGWELL INC85256A109COM CL A8,014,322$45,120,633dollars as filed
NEWS CORP NEW CL A65249B109Stock1,453,322$44,631,519dollars as filed
KEROS THERAPEUTICS INC COM492327101Stock2,708,218$42,844,009dollars as filed
MAGNERA CORP55939A107COMMON STOCK2,832,281$33,194,333dollars as filed
APARTMENT INVT & MGMT CO CL A03748R747REIT3,617,314$28,685,300dollars as filed
CENTURI HOLDINGS INC155923105COM SHS693,136$14,673,689dollars as filed
FRANKLIN STR PPTYS CORP35471R106COM2,580,357$4,128,571dollars as filed
NELNET INC64031N108CL A31,535$3,953,858dollars as filed
ALUMIS INC022307102COM417,777$1,666,930dollars as filed
SHARKNINJA INC COM SHSG8068L108Stock6,152$634,579dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001801265-25-000008this filing2025-11-14acceptance time not in the bulk data set