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Madison Avenue Partners, LP

CIK 1801265 · latest 13F filed 14 August 2026 · Read the filing on EDGAR

Madison Avenue Partners, LP reported 25 US-listed holdings worth $2.32 billion in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Graham Holdings Co. (12.1%), Invitation Homes Inc. (10.8%) and Markel CP Hldg Co. (9.4%). Against the quarter before, it opened 7 positions, added to 6, trimmed 8 and sold out of 9.

Reported holdings$2.32B+1.0% on Q1 2026
Positions25-2 on Q1 2026
The largest ten77.1%of its reported holdings
Latest 13FQ2 2026filed 14 August 2026
Where the money is
OpenedAdded toHeldTrimmed
GHC12.1%INVH10.8%MKL9.4%CPNG9.3%MICC8.2%TBPH6.7%SOLV5.8%STAA5.2%INDV5.1%LKFT4.4%GMED3.2%OCTV3.0%BTI2.8%STGW2.6%11 more11.4%

The 14 largest of its 25 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.

Reported holdings, quarter by quarter
Q3 2024: $1.08 billion in 25 positions$1.08BQ3 24Q4 2024: $944.4 million in 15 positions$944MQ4 24Q1 2025: $1.18 billion in 22 positions$1.18BQ1 25Q2 2025: $1.50 billion in 26 positions$1.50BQ2 25Q3 2025: $1.68 billion in 20 positions$1.68BQ3 25Q4 2025: $2.33 billion in 23 positions$2.33BQ4 25Q1 2026: $2.30 billion in 27 positions$2.30BQ1 26Q2 2026: $2.32 billion in 25 positions$2.32BQ2 26

What the fund reported holding at each quarter's end; hover a bar for the number of positions

What it did on the quarter

Opened 7Added 6Held 4Trimmed 8Sold out 9
Opened: 7Added: 6Held: 4Trimmed: 8Sold out: 9

Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held

Opened 7

  1. Invitation Homes Inc. INVH$251.8 million
  2. Octave Intelligence PLC Ord SHS Class B OCTV$68.8 million
  3. Sanmina Corp. SANM$47.7 million
  4. Primoris Services Corp. PRIM$45.8 million
  5. United States Cellular Corp. AD$40.2 million
  6. Millrose Properties, Inc. MRP$9.0 million
  7. Monro Inc. MNRO$1.6 million

Added to 6

  1. Coupang Inc. Class A CPNG+3.1 million shares · +33%
  2. Staar Surgical Co. STAA+1.7 million shares · +71%
  3. Markel CP Hldg Co. MKL+24,436 shares · +28%
  4. Galapagos NV LKFT+982,628 shares · +40%
  5. Globus Medical Inc. GMED+217,740 shares · +30%
  6. Graham Holdings Co. GHC+539 shares · +0%

Trimmed 8

  1. Sandisk Corp. SNDK-609,312 shares · -98%
  2. Indivior Pharmaceuticals, Inc. INDV-1.4 million shares · -33%
  3. Solventum Corp. SOLV-134,515 shares · -7%
  4. Magnum Ice Cream Co. NV MICC-552,937 shares · -5%
  5. Theravance Biopharma Inc. TBPH-298,898 shares · -3%
  6. British American Tobacco p.l.c. BTI-80,465 shares · -7%
  7. Magnera Corp. Com SHS MAGN-288,550 shares · -18%
  8. Sinclair Inc. SBGI-90,014 shares · -6%

Sold out of 9

  1. ICON plc ICLR$142.0 million last quarter
  2. Molina Healthcare, Inc. MOH$84.5 million last quarter
  3. John Wiley & Sons, Inc. WLY$25.8 million last quarter
  4. Primo Brands Corporation PRMB$24.9 million last quarter
  5. Dnow Inc. DNOW$16.3 million last quarter
  6. Central BanCo Inc CBC$10.7 million last quarter
  7. Par Technology Corp. PAR$6.0 million last quarter
  8. Franklin STR Pptys Corp. FSP$717,748 last quarter

What it holds

CompanySharesValueOf its bookChange in shares
Graham Holdings Co. GHC246,368$281.2 million12.11%+539
Invitation Homes Inc. INVH8,335,309$251.8 million10.84%new
Markel CP Hldg Co. MKL112,325$219.4 million9.44%+24,436
Coupang Inc. Class A CPNG12,457,195$216.4 million9.31%+3,093,574
Magnum Ice Cream Co. NV MICC10,892,592$189.6 million8.16%-552,937
Theravance Biopharma Inc. TBPH9,212,252$156.6 million6.74%-298,898
Solventum Corp. SOLV1,741,221$134.3 million5.78%-134,515
Staar Surgical Co. STAA4,175,748$119.8 million5.16%+1,734,070
Indivior Pharmaceuticals, Inc. INDV2,874,368$117.9 million5.08%-1,440,794
Galapagos NV LKFT3,447,807$103.4 million4.45%+982,628
Globus Medical Inc. GMED935,216$73.9 million3.18%+217,740
Octave Intelligence PLC Ord SHS Class B OCTV4,222,663$68.8 million2.96%new
British American Tobacco p.l.c. BTI1,043,302$64.4 million2.77%-80,465
Stagwell Inc. STGW8,014,322$59.5 million2.56%no change
Sanmina Corp. SANM188,322$47.7 million2.05%new
Primoris Services Corp. PRIM462,058$45.8 million1.97%new
United States Cellular Corp. AD1,109,463$40.2 million1.73%new
Apartment Invt & Mgmt Co. AIV12,374,991$36.8 million1.58%no change
Sandisk Corp. SNDK9,698$22.1 million0.95%-609,312
Turning PT Brands Inc. TPB247,823$21.0 million0.90%+100
Sinclair Inc. SBGI1,383,470$19.7 million0.85%-90,014
Magnera Corp. Com SHS MAGN1,302,066$15.3 million0.66%-288,550
Millrose Properties, Inc. MRP298,461$9.0 million0.39%new
Keros Therapeutics Inc. KROS626,583$6.7 million0.29%no change
Monro Inc. MNRO95,966$1.6 million0.07%new
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
Read moreChange is shares against its 13F for the quarter before; the 9 it sold out of are in the box above.