Madison Avenue Partners, LP 13F holdings, Q3 2025
Holdings as of September 30, 2025 · filings on SEC EDGAR · latest filing →
Madison Avenue Partners, LP disclosed 20 US equity positions worth $1.7bn in its Q3 2025 13F filing. The largest position was GHC at 17.3% of the reported book, followed by SNDK and MKL. Against the Q2 2025 filing, it opened 3 new positions, added to 4 and reduced 7 among the top 20 holdings.
What did Madison Avenue Partners, LP own in Q3 2025? Top 20 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q2 2025 |
|---|---|---|---|---|---|---|---|
| 1 | GHC GRAHAM HLDGS CO | Industrials | 17.3% | $289.4m | 245,829 | 0% | held |
| 2 | SNDK SANDISK CORP | Technology | 13.8% | $231.4m | 2,062,521 | -42% | reduced |
| 3 | MKL MARKEL GROUP INC | Financial Services | 9.6% | $161.1m | 84,310 | 0% | held |
| 4 | INDIVIOR PLC | 9.3% | $155.8m | 6,463,585 | -18% | reduced | |
| 5 | GMED GLOBUS MED INC | Healthcare | 8.7% | $145.9m | 2,548,163 | 49% | added |
| 6 | SOLV SOLVENTUM CORP | Healthcare | 8.7% | $145.2m | 1,988,376 | -11% | reduced |
| 7 | TBPH THERAVANCE BIOPHARMA INC | Healthcare | 8.3% | $138.9m | 9,511,150 | 0% | held |
| 8 | LKFT GALAPAGOS NV | Healthcare | 4.5% | $76.1m | 2,195,775 | 17% | added |
| 9 | BTI BRITISH AMERN TOB PLC | Consumer Defensive | 3.9% | $65.0m | 1,223,767 | – | new |
| 10 | WLY WILEY JOHN & SONS INC | Communication Services | 2.8% | $47.4m | 1,170,624 | -43% | reduced |
| 11 | STGW STAGWELL INC | 2.7% | $45.1m | 8,014,322 | 0% | held | |
| 12 | NWSA NEWS CORP NEW | Communication Services | 2.7% | $44.6m | 1,453,322 | – | new |
| 13 | KROS KEROS THERAPEUTICS INC | Healthcare | 2.6% | $42.8m | 2,708,218 | 1% | added |
| 14 | MAGN MAGNERA CORP | 2.0% | $33.2m | 2,832,281 | -15% | reduced | |
| 15 | AIV APARTMENT INVT & MGMT CO | 1.7% | $28.7m | 3,617,314 | 145% | added | |
| 16 | CTRI CENTURI HOLDINGS INC | Utilities | 0.9% | $14.7m | 693,136 | – | new |
| 17 | FSP FRANKLIN STR PPTYS CORP | Real Estate | 0.2% | $4.1m | 2,580,357 | 0% | held |
| 18 | NNI NELNET INC | Financial Services | 0.2% | $4.0m | 31,535 | -78% | reduced |
| 19 | ALMS ALUMIS INC | 0.1% | $1.7m | 417,777 | -77% | reduced | |
| 20 | SN SHARKNINJA INC | Consumer Cyclical | 0.0% | $634.6k | 6,152 | 0% | held |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.