Filer Snapshot

Madison Avenue Partners, LP

CIK 0001801265. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

48

Latest filing

14 Aug 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13F-HR for Q2 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

GHC

$281.21M reported value

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13D/G large stake

TBPH

30 Jun 2026 · 18% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13G/A filed on 14 Aug 2026 for CIK 0001801265.

View source filing
Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

13F portfolio$2.32B

Quarterly institutional holdings reported on Form 13F; not total AUM.

Latest reported 13F value

13F
$2.32B

Reported market value from the latest parsed Form 13F information table; this is not total assets under management.

Source: SEC Form 13FScope: U.S.-listed equity holdings

Largest 13F holdings

13F
GHC INVH MKL CPNG MICC
+15 moreTBPH SOLV STAA INDV LKFT GMED OCTV BTI STGW SANM PRIM AD AIV SNDK TPB

Largest symbols in the latest parsed Form 13F information table.

Freshness: Latest parsed 13F period

Largest 13F holdings

Largest symbols in the latest parsed Form 13F information table.

GHC INVH MKL CPNG MICC TBPH SOLV STAA
+12 moreINDV LKFT GMED OCTV BTI STGW SANM PRIM AD AIV SNDK TPB

Largest active 13D stakes

Active large-stake positions disclosed in parsed Schedule 13D filings.

SLRN

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

GHC INDV TBPH STAA WLY LKFT
+7 moreAIV SAGE KROS MDRX MAGN CRGX OVID
How to read these SEC ownership signals
  • Read each filing family separately: Form 13F, Schedules 13D/G, and Forms 3/4/5 answer different SEC disclosure questions and should not be blended into one ownership total.
  • Use 13F values for visible U.S.-listed equity portfolios, 13D/G rows for large beneficial-owner stakes, and Forms 3/4/5 rows for reporting-owner positions and transactions.
  • Open the linked research path when you need the filing, CIK, issuer, CUSIP, date, or source trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
150 East 58 Th Street, 14 Th Floor, New York, NY, 10155
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Incorporated in
DE
Fiscal year end
31 December

Filer intelligence

What SEC filings say about Madison Avenue Partners, LP

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

Open 13F portfolio Save filer

Quick read

  • Latest parsed 13F shows $2.32B across 25 reported holdings for Q2 2026.
  • Largest parsed 13F holding: GHC at $281.21M.
  • 5 recent 13D/G stake rows found; top row is TBPH at 18% ownership.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio 25 rows

Quarterly institutional portfolio holdings.

Open
13D/G stakes 5 rows

Beneficial ownership and large-stake disclosures.

Open
Forms 3/4/5 No rows yet

Officer, director, and 10% owner holdings or transactions.

Open

Top parsed 13F holdings

Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.

Q2 2026 - 14 Aug 2026

Top 5 concentration

50%

Share of latest parsed 13F value represented by the visible holdings below.

Top 5 reported value

$1.16B

Compared with $2.32B total 13F value.

Top 5 net change

+$344.26M

Position-value change inside the visible top holdings only.

13F concentration map

A simple visual split of the latest parsed 13F portfolio.

Largest add: INVH · Largest trim: SNDK

GHC INVH MKL CPNG MICC Other holdings

GHC

12.1%

Graham Hldgs Co

$281.21M

INVH

10.8%

Invitation Homes Inc

$251.81M

MKL

9.4%

Markel Group Inc

$219.37M

CPNG

9.3%

Coupang Inc

$216.38M

MICC

8.2%

Magnum Ice Cream Co Nv

$189.64M

13D/G large-stake context

TBPH

30 Jun 2026 · Ordinary Shares, $0.00001 Par Value (the "Ordinary Shares")

18%
Issuer page 13D/G history

STAA

30 Jun 2026 · Common Stock, par value $0.01 per share (the "Common Stock")

8.4%
Issuer page 13D/G history

GHC

30 Jun 2026 · Class B Common Stock, par value $1.00 per share (the "Common Stock")

7.5%
Issuer page 13D/G history

LKFT

15 Jun 2026 · Ordinary shares, no nominal value per share (the "Ordinary Shares")

5.5%
Issuer page 13D/G history

Latest update

What changed recently for Madison Avenue Partners, LP

New filing available

Latest Schedule 13D/G period: 30 Jun 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

14 Aug 2026

Page type

Filer profile

Latest period

30 Jun 2026

Schedule 13D/G context is visible from filings filed on 14 Aug 2026.

Open filer profile Browse recent public updates

Benchmark Context

Benchmark context for this company

Madison Avenue Partners, LP has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest Schedule 13D/G period: 30 Jun 2026. That gives you a fresh baseline before you compare this company with peers.

  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
  • Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

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SEC filing record

CIK 0001801265 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
48
First seen
14 Feb 2020
Latest filing
14 Aug 2026
Entity
Company

Observed form types

13F-HR 13F-HR/A SCHEDULE 13D SCHEDULE 13G SCHEDULE 13G/A

CIK-linked evidence first

Madison Avenue Partners, LP SEC filings Madison Avenue Partners, LP 13F portfolio Madison Avenue Partners, LP 13D/G history Open SEC filing index

Latest Filings

Showing the latest 12 of 48 SEC filings for Madison Avenue Partners, LP.

Open full filing history
SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
14 Aug 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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13F-HR

13F-HR filing

Filing date
14 Aug 2026
Reporting date
30 Jun 2026
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
23 Jun 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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13F-HR

13F-HR filing

Filing date
15 May 2026
Reporting date
31 Mar 2026
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
15 May 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
15 May 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
20 Apr 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
04 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
17 Feb 2026
Reporting date
31 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
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