Madison Avenue Partners, LP
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Madison Avenue Partners, LP reported 27 stock positions worth $2.3 billion. Its top holding was Sandisk (SNDK) at 17.1% of the portfolio, followed by Graham Class B (GHC, 11.3%) and Coupang (CPNG, 7.7%). Compared with Q4 2025, it opened 7 new positions, sold out of 3, added to 3 and reduced 10. The biggest buy was a new position in Coupang (CPNG) and the biggest sale Globus Medical Class A (GMED, shares −73%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001801265
- Portfolio Value
- $2.3B (Q1 2026)
- SEC Filing
- 0001801265-26-000003 ↗ filed May 15, 2026
Holdings Value
Holdings 27 stocks · $2.3B
| SNDK Sandisk Corp. | 17.10% | 619,010 | $393.3M | Reduce -56.8% |
| GHC Graham Holdings Co. Class B | 11.30% | 245,829 | $259.9M | No change |
| CPNG Coupang Inc. | 7.69% | 9,363,621 | $176.8M | New |
| MICC The Magnum Ice Cream Co. NV | 7.44% | 11,445,529 | $171.1M | Add +78.0% |
| MKL Markel Group Inc. | 7.32% | 87,889 | $168.2M | No change |
| TBPH Theravance Biopharma Inc. | 6.71% | 9,511,150 | $154.4M | No change |
| ICLR Icon PLC | 6.17% | 1,282,838 | $142.0M | New |
| INDV Indivior Pharmaceuticals Inc. | 5.72% | 4,315,162 | $131.5M | Reduce -31.3% |
| SOLV Solventum Corp. | 5.33% | 1,875,736 | $122.5M | Reduce -5.7% |
| MOH Molina Healthcare Inc. | 3.67% | 633,877 | $84.5M | No change |
| LKFT Lakefront Biotherapeutic-ADR filed as GALAPAGOS NV | 3.22% | 2,465,179 | $74.0M | Add +11.4% |
| BTI British American Tob-SP ADR | 2.86% | 1,123,767 | $65.7M | Reduce -8.2% |
| GMED Globus Medical Inc. Class A | 2.69% | 717,476 | $61.8M | Reduce -72.7% |
| STGW Stagwell Inc. | 2.19% | 8,014,322 | $50.4M | No change |
| AIV Apartment Invt & Mgmt Co. Class A | 2.19% | 12,374,991 | $50.4M | New |
| STAA Staar Surgical Co. | 1.99% | 2,441,678 | $45.7M | New |
| WLY Wiley (john) & Sons Class A | 1.12% | 678,417 | $25.8M | Reduce -40.9% |
| PRMB Primo Brands Corp. | 1.08% | 1,321,942 | $24.9M | New |
| TPB Turning Point Brands Inc. | 0.93% | 247,723 | $21.5M | No change |
| SBGI Sinclair Inc. | 0.83% | 1,473,484 | $19.1M | Add +62.0% |
| DNOW Dnow Inc. | 0.71% | 1,365,067 | $16.3M | New |
| MAGN Magnera Corp. | 0.66% | 1,590,616 | $15.1M | Reduce -10.7% |
| CBC Central Bancompany | 0.46% | 444,933 | $10.7M | Reduce -55.2% |
| KROS Keros Therapeutics Inc. | 0.30% | 626,583 | $6.9M | Reduce -23.9% |
| PAR Par Technology Corp. | 0.26% | 447,878 | $6.0M | New |
| FSP Franklin Street Properties C | 0.03% | 1,080,132 | $718K | Reduce -52.1% |
| SN Sharkninja Inc. | 0.03% | 6,152 | $651K | No change |
Portfolio Sells Q4 2025 → Q1 2026
| GMED Globus Medical Inc. Class A | Reduce -72.7% | 2.69% | −7.16 |
| SOLS Solstice Adv Materials Inc. | Sold out | 0.00% | −5.81 |
| INDV Indivior Pharmaceuticals Inc. | Reduce -31.3% | 5.72% | −3.96 |
| UNF Unifirst Corp. | Sold out | 0.00% | −2.52 |
| SOLV Solventum Corp. | Reduce -5.7% | 5.33% | −1.44 |
| CBC Central Bancompany | Reduce -55.2% | 0.46% | −0.57 |
| MAGN Magnera Corp. | Reduce -10.7% | 0.66% | −0.50 |
| KROS Keros Therapeutics Inc. | Reduce -23.9% | 0.30% | −0.42 |
| WLY Wiley (john) & Sons Class A | Reduce -40.9% | 1.12% | −0.39 |
| WK Workiva Inc. | Sold out | 0.00% | −0.22 |
| BTI British American Tob-SP ADR | Reduce -8.2% | 2.86% | −0.12 |
| FSP Franklin Street Properties C | Reduce -52.1% | 0.03% | −0.06 |
| SNDK Sandisk Corp. | Reduce -56.8% | 17.10% | +2.48 |
Portfolio Buys Q4 2025 → Q1 2026
| CPNG Coupang Inc. | New | 7.69% | +7.69 |
| ICLR Icon PLC | New | 6.17% | +6.17 |
| MICC The Magnum Ice Cream Co. NV | Add +78.0% | 7.44% | +3.06 |
| AIV Apartment Invt & Mgmt Co. Class A | New | 2.19% | +2.19 |
| STAA Staar Surgical Co. | New | 1.99% | +1.99 |
| PRMB Primo Brands Corp. | New | 1.08% | +1.08 |
| DNOW Dnow Inc. | New | 0.71% | +0.71 |
| PAR Par Technology Corp. | New | 0.26% | +0.26 |
| SBGI Sinclair Inc. | Add +62.0% | 0.83% | +0.23 |
| LKFT Lakefront Biotherapeutic-ADR | Add +11.4% | 3.22% | +0.11 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 25 | $2.3B | GHC, INVH, MKL, CPNG, MICC |
| Q1 2026 | 27 | $2.3B | SNDK, GHC, CPNG, MICC, MKL |
| Q4 2025 | 23 | $2.3B | SNDK, GHC, GMED, INDV, MKL |
| Q3 2025 | 20 | $1.7B | GHC, SNDK, MKL, INDV, GMED |
| Q2 2025 | 26 | $1.5B | GHC, SOLV, MKL, SNDK, INDV |
| Q1 2025 | 22 | $1.2B | GHC, SOLV, MKL, WLY, TBPH |
| Q4 2024 | 15 | $944.4M | GHC, SOLV, WLY, TBPH, ACHC |
| Q3 2024 | 25 | $1.1B | SOLV, GHC, LBRDK, WLY, GMED |
| Q2 2024 | 20 | $791.6M | GHC, SOLV, GMED, TBPH, WLY |
| Q1 2024 | 18 | $619.9M | GHC, SN, TBPH, WLY, HES |