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DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP — 13F Holdings & Portfolio

CIK 1854440 · latest 13F-HR filed 2026-08-14

Backtest portfolio

DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP manages $2.27B in 13F-reported U.S. long-equity assets across 10 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are TPG (16.11%), FOUR (15.38%), LPLA (12.35%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions and exited 0; 4 existing positions rose in reported value and 3 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Loading holdings…
AUM
$2.27B

Long-equity book

Holdings
10

Distinct positions

Period
2026-06-30

Filed 2026-08-14

Q/Q Activity
+0 / −0 / ↑4 / ↓3

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
TPG16.1% · 0%FOUR15.4% · +9%LPLA12.3% · +11%TKO12.0% · 0%CRM10.8% · 0%GLBE10.7% · 0%WMG8.0% · -11%FUN7.2% · -12%ACEL4.5% · 0%LINE2.9% · -45%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 100%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 25, 2026.

Assets Under Management
$3.28B
Discretionary
$3.28B
Employees
8
Accounts
3
Address
300 DRAKES LANDING ROAD
SUITE 290
GREENBRAE, CA 94904
Phone
(415) 464-4648
Website
Name Title / Status Ownership Type
DARLINGTON PARTNERS GP, LLC ControlGENERAL PARTNER
since Jan 2021
Less than 5%Domestic Entity
ISKANDER, MINA, FAHMY ControlCCO, COO, CFO
since Jan 2021
Less than 5%Individual
THE CLARK FAMILY TRUST ControlLIMITED PARTNER
since Jan 2021
25–50%Domestic Entity
THE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST ControlLIMITED PARTNER
since Jan 2021
25–50%Domestic Entity
IGLEHART, STEVEN, ANDREWLIMITED PARTNER
since Jan 2026
Less than 5%Individual
ISKANDER 2018 LIVING TRUSTLIMITED PARTNER
since Jan 2024
5–10%Domestic Entity
MATHIESON FAMILY TRUST U/A 8/4/1997LIMITED PARTNER
since Jun 2022
Less than 5%Domestic Entity
CLARK FAMILY TRUST Control
Indirect owner via DARLINGTON PARTNERS GP, LLC
MEMBER
since Jan 2021
25–50%Domestic Entity
CLARK, SCOTT, WILLIAM Control
Indirect owner via CLARK FAMILY TRUST
TRUSTEE
since Jul 2013
General partner, trustee or managerIndividual
ISKANDER, MINA, FAHMY Control
Indirect owner via ISKANDER 2018 LIVING TRUST
TRUSTEE
since Mar 2018
General partner, trustee or managerIndividual
JISHI, RAMSEY, BASIM Control
Indirect owner via THE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST
TRUSTEE
since Oct 2014
General partner, trustee or managerIndividual
MATHIESON, ANDREW, FRICKE Control
Indirect owner via MATHIESON FAMILY TRUST U/A 8/4/1997
TRUSTEE
since Aug 1997
General partner, trustee or managerIndividual
THE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST Control
Indirect owner via DARLINGTON PARTNERS GP, LLC
MEMBER
since Jan 2021
25–50%Domestic Entity
Ownership & leadership changes · 3 filings with changes since Feb 3, 2021

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Mar 25, 2026 filing
  • No longer listedNUSINOW, ERIC, ANDREW · LIMITED PARTNER · 10–25% · listed since Jan 2021
  • AddedIGLEHART, STEVEN, ANDREW · LIMITED PARTNER · Less than 5%
  • ChangedISKANDER 2018 LIVING TRUST · ownership Less than 5% → 5–10%
Mar 28, 2024 filing
  • AddedISKANDER 2018 LIVING TRUST · LIMITED PARTNER · Less than 5%
  • AddedISKANDER, MINA, FAHMY · TRUSTEE · General partner, trustee or manager · indirect via ISKANDER 2018 LIVING TRUST · control person
  • ChangedISKANDER, MINA, FAHMY · title CCO, COO AND CFO → CCO, COO, CFO
  • ChangedMATHIESON FAMILY TRUST U/A 8/4/1997 · ownership 5–10% → Less than 5%
Jul 12, 2022 filing
  • No longer listedFAIRVIEW CAPITAL · LIMITED PARTNER · 5–10% · listed since Jan 2021
  • No longer listedMATHIESON, ANDREW, FRICKE · PRESIDENT · 75% or more · indirect via FAIRVIEW CAPITAL · control person · listed since Jan 1998
  • AddedMATHIESON FAMILY TRUST U/A 8/4/1997 · LIMITED PARTNER · 5–10%
  • AddedMATHIESON, ANDREW, FRICKE · TRUSTEE · General partner, trustee or manager · indirect via MATHIESON FAMILY TRUST U/A 8/4/1997 · control person
Feb 3, 2021 filing (earliest on record)
  • ListedCLARK FAMILY TRUST · MEMBER · 25–50% · indirect via DARLINGTON PARTNERS GP, LLC · control person
  • ListedCLARK, SCOTT, WILLIAM · TRUSTEE · General partner, trustee or manager · indirect via CLARK FAMILY TRUST · control person
  • ListedDARLINGTON PARTNERS GP, LLC · GENERAL PARTNER · Less than 5% · control person
  • ListedFAIRVIEW CAPITAL · LIMITED PARTNER · 5–10%
  • ListedISKANDER, MINA, FAHMY · CCO, COO AND CFO · Less than 5% · control person
  • ListedJISHI, RAMSEY, BASIM · TRUSTEE · General partner, trustee or manager · indirect via THE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST · control person
  • ListedMATHIESON, ANDREW, FRICKE · PRESIDENT · 75% or more · indirect via FAIRVIEW CAPITAL · control person
  • ListedNUSINOW, ERIC, ANDREW · LIMITED PARTNER · 10–25%
  • ListedTHE CLARK FAMILY TRUST · LIMITED PARTNER · 25–50% · control person
  • ListedTHE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST · LIMITED PARTNER · 25–50% · control person
  • ListedTHE RAMSEY B. JISHI AND KAREN M. JISHI 2014 REVOCABLE TRUST · MEMBER · 25–50% · indirect via DARLINGTON PARTNERS GP, LLC · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 4 →

Top Trims

Show all 3 →

New Positions

  • No new positions this quarter.
Show all 0 →

Exited Positions

  • No exits this quarter.
Show all 0 →

DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 TPG INC TPG 872657101 $364.9M 16.11% 9,000,000 SH
2 SHIFT4 PMTS INC FOUR 82452J109 $348.4M 15.38% 7,161,844 SH
3 LPL FINL HLDGS INC LPLA 50212V100 $279.7M 12.35% 993,006 SH
4 TKO GROUP HOLDINGS INC TKO 87256C101 $271.8M 12.00% 1,350,367 SH
5 SALESFORCE INC CRM 79466L302 $244.7M 10.80% 1,561,852 SH
6 GLOBAL E ONLINE LTD GLBE M5216V106 $241.8M 10.67% 6,961,820 SH
7 WARNER MUSIC GROUP CORP WMG 934550203 $181.5M 8.01% 6,705,884 SH
8 SIX FLAGS ENTERTAINMENT CORP FUN 83001C108 $164.0M 7.24% 7,700,000 SH
9 ACCEL ENTERTAINMENT INC ACEL 00436Q106 $102.1M 4.51% 8,098,349 SH
10 LINEAGE INC LINE 53566V106 $66.3M 2.93% 1,533,843 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $2.27B 10 0001854440-26-000004
2026-03-31 2026-05-15 $2.23B 10 0002073679-26-000062
2025-12-31 2026-02-17 $2.50B 14 0001854440-26-000002
2025-09-30 2025-11-14 $2.96B 14 0001854440-25-000012
Filer Information
Address
300 DRAKES LANDING ROAD
SUITE 290
GREENBRAE, CA 94904
Phone
(415) 464-4648
Filing Manager
DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP
GREENBRAE, CA
Signatory
Mina Iskander
CCO, COO, CFO