Madison Avenue Partners, LP

Investment Portfolio & 13F Holdings Analysis

About

Type: FundHoldings: 22Value: $1.2BLatest: 2025Q1

Madison Avenue Partners, LP is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 22 holdings worth $1.2 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.

AI_NATIVE detailed information: This accession holds the following tickers:[
  "ACHC",
  "PCG",
  "MAGN",
  "NNI",
  "SN",
  "SLRN",
  "TBPH",
  "SAGE",
  "TSVT",
  "FSP",
  "INVX",
  "OVID",
  "STGW",
  "PLRX",
  "INDV.L",
  "GHC",
  "WLY",
  "SOLV",
  "MKL",
  "CNNE",
  "CRGX",
  "CMCO"
]

Filing Details

13F-HR • 2025-03-31

SEC FilingSEC DataHachi Filing

Report Date: 2025-03-31
Filing Date: 2025-05-15
Total Holdings: 22
Total Value: 1177866512
Accession Number: 0001801265-25-000004
Form Type: 13F-HR
CIK: madison-avenue-partners-lp
Manager Name: Madison-Avenue-Partners-Lp

Data Enrichment

100% identified

22 identified0 unidentified

Holdings

SEC FilingSEC DataHachi Filing

Manager:

22 positions • $1.2B total value

SEC FilingSEC DataHachi Filing

Manager:

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Graham Holdings Co

GHC|384637104

Shares:245.3K

Value:$235.7M

% of Portfolio:20.0% ($235.7M/$1.2B)

Solventum Corp

SOLV|83444M101

Shares:2.8M

Value:$213.9M

% of Portfolio:18.2% ($213.9M/$1.2B)

MARKEL GROUP INC.

MKL|570535104

Shares:91.4K

Value:$170.8M

% of Portfolio:14.5% ($170.8M/$1.2B)

JOHN WILEY & SONS, INC.

WLY|968223206

Shares:2.2M

Value:$98.4M

% of Portfolio:8.4% ($98.4M/$1.2B)

Theravance Biopharma, Inc.

TBPH|G8807B106

Shares:9.5M

Value:$84.9M

% of Portfolio:7.2% ($84.9M/$1.2B)

INDIVIOR PLC

INDV.L|G4766E116

Shares:7.8M

Value:$74.3M

% of Portfolio:6.3% ($74.3M/$1.2B)

Magnera Corp

MAGN|55939A107

Shares:3.3M

Value:$60.7M

% of Portfolio:5.2% ($60.7M/$1.2B)

PG&E Corp

PCG|69331C108

Shares:3.0M

Value:$50.7M

% of Portfolio:4.3% ($50.7M/$1.2B)

Innovex International, Inc.

INVX|457651107

Shares:2.4M

Value:$43.3M

% of Portfolio:3.7% ($43.3M/$1.2B)

Stagwell Inc

STGW|85256A109

Shares:7.1M

Value:$43.2M

% of Portfolio:3.7% ($43.2M/$1.2B)

Sage Therapeutics, Inc.

SAGE|78667J108

Shares:4.5M

Value:$35.6M

% of Portfolio:3.0% ($35.6M/$1.2B)

NELNET INC

NNI|64031N108

Shares:233.8K

Value:$25.9M

% of Portfolio:2.2% ($25.9M/$1.2B)

COLUMBUS MCKINNON CORP

CMCO|199333105

Shares:619.3K

Value:$10.5M

% of Portfolio:0.9% ($10.5M/$1.2B)

ACELYRIN, Inc.

SLRN|00445A100

Shares:4.1M

Value:$10.2M

% of Portfolio:0.9% ($10.2M/$1.2B)

Cannae Holdings, Inc.

CNNE|13765N107

Shares:419.0K

Value:$7.7M

% of Portfolio:0.7% ($7.7M/$1.2B)

FRANKLIN STREET PROPERTIES CORP /MA/

FSP|35471R106

Shares:2.7M

Value:$4.9M

% of Portfolio:0.4% ($4.9M/$1.2B)

2seventy bio, Inc.

TSVT|901384107

Shares:579.9K

Value:$2.9M

% of Portfolio:0.2% ($2.9M/$1.2B)

PLIANT THERAPEUTICS, INC.

PLRX|729139105

Shares:1.7M

Value:$2.3M

% of Portfolio:0.2% ($2.3M/$1.2B)

Ovid Therapeutics Inc.

OVID|690469101

Shares:2.5M

Value:$769.0K

% of Portfolio:0.1% ($769.0K/$1.2B)

SharkNinja, Inc.

SN|G8068L108

Shares:6.2K

Value:$513.1K

% of Portfolio:0.0% ($513.1K/$1.2B)

Instrument	Shares		Other Manager	Value	% of Portfolio
Graham Holdings Co(GHCcusip384637104)	245.3K	QoQ +4.25% (+10.0K) YoY +16.39% (+34.6K)	All Managers (Combined)	$235.7M	20.0% ($235.7M/$1.2B)	QoQ +14.88% (+$30.5M) YoY +45.68% (+$73.9M)
Solventum Corp(SOLVcusip83444M101)	2.8M	QoQ -0.51% (-14.7K) YoY NEW(+2.8M)	All Managers (Combined)	$213.9M	18.2% ($213.9M/$1.2B)	QoQ +14.51% (-$27.1M) YoY NEW(+$213.9M)
MARKEL GROUP INC.(MKLcusip570535104)	91.4K	QoQ NEW(+91.4K) YoY NEW(+91.4K)	All Managers (Combined)	$170.8M	14.5% ($170.8M/$1.2B)	QoQ NEW(+$170.8M) YoY NEW(+$170.8M)
JOHN WILEY & SONS, INC.(WLYcusip968223206)	2.2M	QoQ +5.30% (+111.3K) YoY +61.55% (+841.3K)	All Managers (Combined)	$98.4M	8.4% ($98.4M/$1.2B)	QoQ +7.35% (+$6.7M) YoY +88.79% (+$46.3M)
Theravance Biopharma, Inc.(TBPHcusipG8807B106)	9.5M	QoQ 0.00% (-0) YoY +35.63% (+2.5M)	All Managers (Combined)	$84.9M	7.2% ($84.9M/$1.2B)	QoQ -5.10% (-$4.6M) YoY +35.03% (+$22.0M)
INDIVIOR PLC(INDV.LcusipG4766E116)	7.8M	QoQ +112.12% (+4.1M) YoY +4683.50% (+7.6M)	All Managers (Combined)	$74.3M	6.3% ($74.3M/$1.2B)	QoQ +62.63% (+$28.6M) YoY +2028.23% (+$70.8M)
Magnera Corp(MAGNcusip55939A107)	3.3M	QoQ -1.82% (-62.3K) YoY NEW(+3.3M)	All Managers (Combined)	$60.7M	5.2% ($60.7M/$1.2B)	QoQ -1.88% (-$1.2M) YoY NEW(+$60.7M)
PG&E Corp(PCGcusip69331C108)	3.0M	QoQ NEW(+3.0M) YoY NEW(+3.0M)	All Managers (Combined)	$50.7M	4.3% ($50.7M/$1.2B)	QoQ NEW(+$50.7M) YoY NEW(+$50.7M)
Innovex International, Inc.(INVXcusip457651107)	2.4M	QoQ +43.11% (+727.1K) YoY NEW(+2.4M)	All Managers (Combined)	$43.3M	3.7% ($43.3M/$1.2B)	QoQ +83.99% (+$19.8M) YoY NEW(+$43.3M)
Stagwell Inc(STGWcusip85256A109)	7.1M	QoQ 0.00% (-0) YoY 0.00% (-0)	All Managers (Combined)	$43.2M	3.7% ($43.2M/$1.2B)	QoQ -8.05% (-$3.8M) YoY -2.73% (-$1.2M)
Sage Therapeutics, Inc.(SAGEcusip78667J108)	4.5M	QoQ NEW(+4.5M) YoY NEW(+4.5M)	All Managers (Combined)	$35.6M	3.0% ($35.6M/$1.2B)	QoQ NEW(+$35.6M) YoY NEW(+$35.6M)
NELNET INC(NNIcusip64031N108)	233.8K	QoQ -19.42% (-56.4K) YoY -19.42% (-56.4K)	All Managers (Combined)	$25.9M	2.2% ($25.9M/$1.2B)	QoQ -16.32% (-$5.1M) YoY -5.56% (-$1.5M)
COLUMBUS MCKINNON CORP(CMCOcusip199333105)	619.3K	QoQ NEW(+619.3K) YoY NEW(+619.3K)	All Managers (Combined)	$10.5M	0.9% ($10.5M/$1.2B)	QoQ NEW(+$10.5M) YoY NEW(+$10.5M)
ACELYRIN, Inc.(SLRNcusip00445A100)	4.1M	QoQ NEW(+4.1M) YoY NEW(+4.1M)	All Managers (Combined)	$10.2M	0.9% ($10.2M/$1.2B)	QoQ NEW(+$10.2M) YoY NEW(+$10.2M)
Cannae Holdings, Inc.(CNNEcusip13765N107)	419.0K	QoQ NEW(+419.0K) YoY NEW(+419.0K)	All Managers (Combined)	$7.7M	0.7% ($7.7M/$1.2B)	QoQ NEW(+$7.7M) YoY NEW(+$7.7M)
FRANKLIN STREET PROPERTIES CORP /MA/(FSPcusip35471R106)	2.7M	QoQ 0.00% (-0) YoY -16.95% (-558.0K)	All Managers (Combined)	$4.9M	0.4% ($4.9M/$1.2B)	QoQ -2.73% (-$136.7K) YoY -34.88% (-$2.6M)
2seventy bio, Inc.(TSVTcusip901384107)	579.9K	QoQ 0.00% (+0) YoY -76.16% (-1.9M)	All Managers (Combined)	$2.9M	0.2% ($2.9M/$1.2B)	QoQ +68.02% (+$1.2M) YoY -77.99% (-$10.2M)
PLIANT THERAPEUTICS, INC.(PLRXcusip729139105)	1.7M	QoQ NEW(+1.7M) YoY NEW(+1.7M)	All Managers (Combined)	$2.3M	0.2% ($2.3M/$1.2B)	QoQ NEW(+$2.3M) YoY NEW(+$2.3M)
Ovid Therapeutics Inc.(OVIDcusip690469101)	2.5M	QoQ -33.76% (-1.3M) YoY -32.42% (-1.2M)	All Managers (Combined)	$769.0K	0.1% ($769.0K/$1.2B)	QoQ -77.87% (-$2.7M) YoY -93.08% (-$10.4M)
SharkNinja, Inc.(SNcusipG8068L108)	6.2K	QoQ 0.00% (-0) YoY -99.65% (-1.8M)	All Managers (Combined)	$513.1K	0.0% ($513.1K/$1.2B)	QoQ -14.32% (-$85.8K) YoY -99.54% (-$112.1M)