Madison Avenue Partners, LP 13F holdings
Madison Avenue Partners, LP reported 25 positions with a total reported value of $2.3B as of 2026-06-30, in its 13F for Q2 2026, filed 2026-08-14. Top holdings by reported value: GHC GRAHAM HLDGS CO (12.1%), INVH INVITATION HOMES INC (10.8%), MKL MARKEL GROUP INC (9.4%), CPNG COUPANG INC (9.3%), MICC MAGNUM ICE CREAM CO NV (8.2%). Against 2026-03-31 it opened 8 new positions and exited 10. Next 13F due by 2026-11-14, the legal deadline 45 days after the quarter ending 2026-09-30.
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Top holdings
25 largest of 25 positions · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| GHC GRAHAM HLDGS CO | 246,368 | $281.2M | 12.1% |
| INVH INVITATION HOMES INC | 8,335,309 | $251.8M | 10.8% |
| MKL MARKEL GROUP INC | 112,325 | $219.4M | 9.4% |
| CPNG COUPANG INC | 12,457,195 | $216.4M | 9.3% |
| MICC MAGNUM ICE CREAM CO NV | 10,892,592 | $189.6M | 8.2% |
| TBPH THERAVANCE BIOPHARMA INC | 9,212,252 | $156.6M | 6.7% |
| SOLV SOLVENTUM CORP | 1,741,221 | $134.3M | 5.8% |
| STAA STAAR SURGICAL CO | 4,175,748 | $119.8M | 5.2% |
| INDV INDIVIOR PLC | 2,874,368 | $117.9M | 5.1% |
| LAKEFRONT BIOTHERAPEUTICS NV | 3,447,807 | $103.4M | 4.4% |
| GMED GLOBUS MED INC | 935,216 | $73.9M | 3.2% |
| OCTV OCTAVE INTELLIGENCE PLC | 4,222,663 | $68.8M | 3.0% |
| BRITISH AMERN TOB PLC | 1,043,302 | $64.4M | 2.8% |
| STGW STAGWELL INC | 8,014,322 | $59.5M | 2.6% |
| SANM SANMINA CORP | 188,322 | $47.7M | 2.1% |
| PRIMORIS SVCS CORP | 462,058 | $45.8M | 2.0% |
| AD ARRAY DIGITAL INFRASTRUCTURE | 1,109,463 | $40.2M | 1.7% |
| APARTMENT INVT & MGMT CO | 12,374,991 | $36.8M | 1.6% |
| SNDK SANDISK CORP | 9,698 | $22.1M | 0.9% |
| TPB TURNING PT BRANDS INC | 247,823 | $21.0M | 0.9% |
| SBGI SINCLAIR INC | 1,383,470 | $19.7M | 0.8% |
| MAGN MAGNERA CORP | 1,302,066 | $15.3M | 0.7% |
| MILLROSE PPRYS INC | 298,461 | $9.0M | 0.4% |
| KROS KEROS THERAPEUTICS INC | 626,583 | $6.7M | 0.3% |
| MNRO MONRO INC | 95,966 | $1.6M | <0.1% |
SEC FORM 13F · Q2 2026 · VALUES AS REPORTED, NOT PRICES
New positions this quarter
Held at 2026-06-30, not at 2026-03-31 · 8 in all · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| INVH INVITATION HOMES INC | 8,335,309 | $251.8M | 10.8% |
| LAKEFRONT BIOTHERAPEUTICS NV | 3,447,807 | $103.4M | 4.4% |
| OCTV OCTAVE INTELLIGENCE PLC | 4,222,663 | $68.8M | 3.0% |
| SANM SANMINA CORP | 188,322 | $47.7M | 2.1% |
| PRIMORIS SVCS CORP | 462,058 | $45.8M | 2.0% |
| AD ARRAY DIGITAL INFRASTRUCTURE | 1,109,463 | $40.2M | 1.7% |
| MILLROSE PPRYS INC | 298,461 | $9.0M | 0.4% |
| MNRO MONRO INC | 95,966 | $1.6M | <0.1% |
Sold out
Held at 2026-03-31, gone by 2026-06-30 · 10 in all · reported value as of 2026-03-31
| Holding | Shares 2026-03-31 | Reported value | % of portfolio then |
|---|---|---|---|
| ICLR ICON PLC | 1,282,838 | $142.0M | 6.2% |
| MOH MOLINA HEALTHCARE INC | 633,877 | $84.5M | 3.7% |
| GALAPAGOS NV | 2,465,179 | $74.0M | 3.2% |
| WLY WILEY JOHN & SONS INC | 678,417 | $25.8M | 1.1% |
| PRMB PRIMO BRANDS CORPORATION | 1,321,942 | $24.9M | 1.1% |
| DNOW DNOW INC | 1,365,067 | $16.3M | 0.7% |
| CBC CENTRAL BANCOMPANY | 444,933 | $10.7M | 0.5% |
| PAR PAR TECHNOLOGY CORP | 447,878 | $6.0M | 0.3% |
| FRANKLIN STR PPTYS CORP | 1,080,132 | $717.7K | <0.1% |
| SN SHARKNINJA INC | 6,152 | $651.5K | <0.1% |
Biggest increases and decreases
Positions held at both quarter ends, by change in shares · reported value as of 2026-06-30
Increases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| CPNG COUPANG INC | 9,363,621 | 12,457,195 | +33.0% | $216.4M |
| STAA STAAR SURGICAL CO | 2,441,678 | 4,175,748 | +71.0% | $119.8M |
| MKL MARKEL GROUP INC | 87,889 | 112,325 | +27.8% | $219.4M |
| GMED GLOBUS MED INC | 717,476 | 935,216 | +30.3% | $73.9M |
| GHC GRAHAM HLDGS CO | 245,829 | 246,368 | +0.2% | $281.2M |
| TPB TURNING PT BRANDS INC | 247,723 | 247,823 | +0.0% | $21.0M |
Decreases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| SNDK SANDISK CORP | 619,010 | 9,698 | -98.4% | $22.1M |
| INDV INDIVIOR PLC | 4,315,162 | 2,874,368 | -33.4% | $117.9M |
| SOLV SOLVENTUM CORP | 1,875,736 | 1,741,221 | -7.2% | $134.3M |
| MICC MAGNUM ICE CREAM CO NV | 11,445,529 | 10,892,592 | -4.8% | $189.6M |
| TBPH THERAVANCE BIOPHARMA INC | 9,511,150 | 9,212,252 | -3.1% | $156.6M |
| BRITISH AMERN TOB PLC | 1,123,767 | 1,043,302 | -7.2% | $64.4M |
| MAGN MAGNERA CORP | 1,590,616 | 1,302,066 | -18.1% | $15.3M |
| SBGI SINCLAIR INC | 1,473,484 | 1,383,470 | -6.1% | $19.7M |
CIK 1801265 · 13F FILINGS ON EDGAR · INFORMATIONAL ONLY
