Madison Avenue Partners, LP

Fundamental concentrated ★Signal CIK 1801265
League rank
#55
in Fundamental concentrated · #64 overall
Long book
$2.30B
Q1 2026
Positions
27
Top-10 weight
78%
concentration
Last quarter
+45.4%
SPY +14.8%
Turnover
33%
of book per quarter

Strategy in plain words

auto-generated from filings

Madison Avenue Partners, LP is a concentrated fundamental stock-picker, running a $2.30B US long book across 27 positions.

The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: SANDISK CORP, GRAHAM HOLDINGS CO-CLASS B, COUPANG INC, MAGNUM ICE CREAM CO NV/THE, MARKEL GROUP INC.

Over the last 9 quarters its long book ran on average 12.2pp per quarter ahead of the S&P 500, beating the index in 6 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
+2.0%
Q2 2024
+18.1%
Q3 2024
+1.3%
Q4 2024
+2.3%
Q1 2025
+2.2%
Q2 2025
+29.4%
Q3 2025
+28.0%
Q4 2025
+21.7%
Q1 2026
+45.4%

Sector allocation

Healthcare
32%
Technology
19%
Services media
15%
Financials
12%
Consumer staples
10%
Consumer discretionary
8%
Other
2%
Communications
1%

Long book by quarter

$619.9M
Q1 2024
$791.6M
Q2 2024
$1.08B
Q3 2024
$944.4M
Q4 2024
$1.18B
Q1 2025
$1.50B
Q2 2025
$1.68B
Q3 2025
$2.33B
Q4 2025
$2.30B
Q1 2026

What does Madison Avenue own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
SNDK SANDISK CORPTechnology619.0K$393.3M17.1%-56.8%
GHC GRAHAM HOLDINGS CO-CLASS BServices media245.8K$259.9M11.3%Held
CPNG COUPANG INCConsumer discretionary9.4M$176.8M7.7%New
MICC MAGNUM ICE CREAM CO NV/THEConsumer staples11.4M$171.1M7.4%+78.0%
MKL MARKEL GROUP INCFinancials87.9K$168.2M7.3%Held
TBPH THERAVANCE BIOPHARMA INCHealthcare9.5M$154.4M6.7%Held
ICLR ICON PLCHealthcare1.3M$142.0M6.2%New
INDV INDIVIOR PHARMACEUTICALS INCHealthcare4.3M$131.5M5.7%-31.3%
SOLV SOLVENTUM CORPHealthcare1.9M$122.5M5.3%-5.6%
MOH MOLINA HEALTHCARE INCFinancials633.9K$84.5M3.7%Held
GMED GLOBUS MEDICAL INC - AHealthcare717.5K$61.8M2.7%-72.7%
STGW STAGWELL INCServices media8.0M$50.4M2.2%Held
STAA STAAR SURGICAL COHealthcare2.4M$45.7M2.0%New
WLY WILEY (JOHN) & SONS-CLASS AOther678.4K$25.8M1.1%-40.9%
PRMB PRIMO BRANDS CORPConsumer staples1.3M$24.9M1.1%New
TPB TURNING POINT BRANDS INCConsumer staples247.7K$21.5M0.9%Held
SBGI SINCLAIR INCCommunications1.5M$19.1M0.8%+62.0%
DNOW DNOW INCIndustrials1.4M$16.3M0.7%New
MAGN MAGNERA CORPOther1.6M$15.1M0.7%-10.7%
CBC CENTRAL BANCOMPANYFinancials444.9K$10.7M0.5%-55.2%
KROS KEROS THERAPEUTICS INCHealthcare626.6K$6.9M0.3%-23.9%
PAR PAR TECHNOLOGY CORP/DELTechnology447.9K$6.0M0.3%New
SN SHARKNINJA INCIndustrials6.2K$651K0.0%Held

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 15, 202627$2.30B canonicalSEC ↗
Q4 202513F-HRFeb 17, 202623$2.33B canonicalSEC ↗
Q3 202513F-HRNov 14, 202520$1.68B canonicalSEC ↗
Q2 202513F-HRAug 14, 202526$1.50B canonicalSEC ↗
Q1 202513F-HRMay 15, 202522$1.18B canonicalSEC ↗
Q4 202413F-HRFeb 14, 202515$944.4M canonicalSEC ↗
Q3 202413F-HRNov 14, 202425$1.08B canonicalSEC ↗
Q2 202413F-HRAug 14, 202420$791.6M canonicalSEC ↗
Q1 202413F-HRMay 15, 202418$619.9M canonicalSEC ↗