STOCKBRIDGE PARTNERS LLC
Q3 2021 Form 13-F
BOSTON, MASSACHUSETTS
CIK 0001505183
· CRD 160674
· SEC-registered investment adviser
Consolidated report · includes
2 managers
since Q4 2013
$4.9B Reported Value Total
STOCKBRIDGE INVESTORS reports 3 total accounts under management (AUM). There are 3 discretionary accounts valued at $5,867,663,788, and 0 non-discretionary accounts.
Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
Private funds (Form ADV)
3 funds
· $4.8B gross asset value
Hedge Fund: $4.8B
Source: Form ADV filed 2026-05-28
Reported value
$4.9B
Quarter over quarter
-1.3%
Holdings
19
Top-10 concentration
80.9%
Filing Structure
Reports holdings for
- Berkshire Partners Holdings LLC · File #028-16056 · since Q4 2013
- BPSP L P · File #028-16060 · since Q4 2013
- Berkshire Partners LLC · File #028-14378 · Q2 2013 – Q3 2013 · declared by one filing
Key People
Form ADV owners & control persons
Reuben Benjamin Ackerman
CHIEF COMPLIANCE OFFICER AND GENERAL COUNSEL
Michael Carl Ascione
CO-MANAGING PARTNER
Samantha Allen Adams
MANAGING DIRECTOR
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
13F Metrics
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Q3 2021 13F record
Q3 2021 13F filing summary
| Period of report | September 30, 2021 |
|---|---|
| Filed | November 15, 2021 |
| Form | 13F-HR |
| Reported value | $4.9B |
| Positions | 19 |
| Change in reported value | +3.3% |
| New positions | 4 |
| Exited positions | 1 |
| Position turnover | 25.0% |
| Top-10 concentration | 80.9% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q2 2026 13F
Filed Aug 14, 2026
|
17 | $4.8B |
|
Q1 2026 13F
Filed May 15, 2026
|
16 | $4.1B |
|
Q4 2025 13F
Filed Feb 17, 2026
|
13 | $4.5B |
|
Q3 2025 13F
Filed Nov 14, 2025
|
14 | $5.2B |
|
Q2 2025 13F
Filed Aug 14, 2025
|
12 | $5.1B |
|
Q1 2025 13F
Filed May 15, 2025
|
12 | $4.5B |
|
Q4 2024 13F
Filed Feb 14, 2025
|
12 | $4.7B |
|
Q3 2024 13F
Filed Nov 14, 2024
|
13 | $5.0B |
|
Q2 2024 13F
Filed Aug 14, 2024
|
13 | $4.8B |
|
Q1 2024 13F
Filed May 15, 2024
|
13 | $4.9B |
|
Q4 2023 13F
Filed Feb 14, 2024
|
14 | $4.7B |
|
Q3 2023 13F
Filed Nov 14, 2023
|
15 | $4.5B |
|
Q2 2023 13F
Filed Aug 14, 2023
|
15 | $4.9B |
|
Q1 2023 13F
Filed May 15, 2023
|
15 | $4.3B |
|
Q4 2022 13F
Filed Feb 14, 2023
|
14 | $3.7B |
|
Q3 2022 13F
Filed Nov 14, 2022
|
16 | $3.5B |
|
Q2 2022 13F
Filed Aug 15, 2022
|
17 | $3.8B |
|
Q1 2022 13F
Filed May 13, 2022
|
17 | $4.6B |
|
Q4 2021 13F
Filed Feb 14, 2022
|
17 | $5.0B |
|
Q3 2021 13F
Filed Nov 15, 2021
|
19 | $4.9B |
33 earlier quarters on file — choose one from the quarter menu above.
Top 19 holdings · Q3 2021
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | TDG TRANSDIGM GROUP INC | $970.9M | 20.01% |
| 2 | GWRE GUIDEWIRE SOFTWARE INC | $613.4M | 12.64% |
| 3 | V VISA INC | $482.8M | 9.95% |
| 4 | LBRDK LIBERTY BROADBAND CORP | $426.9M | 8.8% |
| 5 | WMS ADVANCED DRAIN SYS INC DEL | $285.0M | 5.87% |
| 6 | SHC SOTERA HEALTH CO | $259.9M | 5.35% |
| 7 | VMC VULCAN MATLS CO | $232.7M | 4.8% |
| 8 | VRSN VERISIGN INC | $224.3M | 4.62% |
| 9 | AMZN AMAZON COM INC | $215.1M | 4.43% |
| 10 | MSFT MICROSOFT CORP | $213.0M | 4.39% |
| 11 | UBER UBER TECHNOLOGIES INC | $204.2M | 4.21% |
| 12 | W WAYFAIR INC | $200.1M | 4.12% |
| 13 | NYT NEW YORK TIMES CO | $198.1M | 4.08% |
| 14 | NOW SERVICENOW INC | $134.8M | 2.78% |
| 15 | TEAM ATLASSIAN CORP PLC | $86.3M | 1.78% |
| 16 | CHTR CHARTER COMMUNICATIONS INC N | $52.0M | 1.07% |
| 17 | MLNK MERIDIANLINK INC | $30.2M | 0.62% |
| 18 | ALKT ALKAMI TECHNOLOGY INC | $14.1M | 0.29% |
| 19 | DNA GINKGO BIOWORKS HOLDINGS INC | $9.3M | 0.19% |
Values as reported on the Q3 2021 Form 13F. Every position is in the holdings table below.