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Altarock Partners LP

West Palm Beach, FL 21 processed 13Fs on this site, 2021 Q3 to 2026 Q2

  • $4.2B
  • 8 holdings
  • 2026 Q2
  • +2.8% QoQ
  • Top 5 96.3%

Portfolio

2026 Q2, filed 8/17/2026, 8 holdings

Top 5 96.3%, top 10 100.0%

  1. AMZN, Amazon 32.2%
  2. TDG, TransDigm 27.5%
  3. MSFT, Microsoft 20.5%
  4. MA, Mastercard 9.3%
  5. V, Visa 6.8%
  6. MCO, Moody's 3.2%
  7. GOOGL, Alphabet 0.4%
  8. HLT, Hilton 0.1%

AUM over time

2026 Q2 $4.2B +2.8% QoQ
2021 Q3: $3.7B 2021 Q3: $3.7B
Q3 2021
2021 Q4: $3.8B, +2.3% QoQ 2021 Q4: $3.8B, +2.3% QoQ
Q4
2022 Q1: $3.9B, +3.4% QoQ 2022 Q1: $3.9B, +3.4% QoQ
Q1 2022
2022 Q2: $3.2B, −17.4% QoQ 2022 Q2: $3.2B, −17.4% QoQ
Q2
2022 Q3: $3.1B, −5.7% QoQ 2022 Q3: $3.1B, −5.7% QoQ
Q3
2022 Q4: $3.2B, +4.2% QoQ 2022 Q4: $3.2B, +4.2% QoQ
Q4
2023 Q1: $3.7B, +14.7% QoQ 2023 Q1: $3.7B, +14.7% QoQ
Q1 2023
2023 Q2: $4.2B, +14.1% QoQ 2023 Q2: $4.2B, +14.1% QoQ
Q2
2023 Q3: $4B, −4.1% QoQ 2023 Q3: $4B, −4.1% QoQ
Q3
2023 Q4: $4.5B, +12.3% QoQ 2023 Q4: $4.5B, +12.3% QoQ
Q4
2024 Q1: $4.7B, +3.8% QoQ 2024 Q1: $4.7B, +3.8% QoQ
Q1 2024
2024 Q2: $4.9B, +4.4% QoQ 2024 Q2: $4.9B, +4.4% QoQ
Q2
2024 Q3: $5.1B, +4.5% QoQ 2024 Q3: $5.1B, +4.5% QoQ
Q3
2024 Q4: $4.9B, −2.6% QoQ 2024 Q4: $4.9B, −2.6% QoQ
Q4
2025 Q1: $5B, +0.6% QoQ 2025 Q1: $5B, +0.6% QoQ
Q1 2025
2025 Q2: $5.5B, +10.1% QoQ 2025 Q2: $5.5B, +10.1% QoQ
Q2
2025 Q3: $5.5B, −0.1% QoQ 2025 Q3: $5.5B, −0.1% QoQ
Q3
2025 Q4: $5.1B, −6.7% QoQ 2025 Q4: $5.1B, −6.7% QoQ
Q4
2026 Q1: $4.1B, −19.1% QoQ 2026 Q1: $4.1B, −19.1% QoQ
Q1 2026
2026 Q2: $4.2B, +2.8% QoQ 2026 Q2: $4.2B, +2.8% QoQ
Q2

Book

2022 Q2 2022 Q1, filed 12 Aug, long equity only

Download CSV Download Excel All activity
TDG, TransDigm 24.16%, was 23.61% Add +2.6% 1,458,679 $536.67 $783M +37,400 −$143M
GOOGL, Alphabet 22.74% Add +0.9% 338,130 $2,179 $737M +3,020 −$195M
MSFT, Microsoft 21.65%, was 20.72% Add +3.7% 2,732,009 $256.83 $702M +96,700 −$111M
AMZN, Amazon 10.04% Add +2308.3% 3,064,420 $106.21 $325M +2,937,174 −$89M
V, Visa 9.53%, was 8.46% Add +4.8% 1,568,402 $196.89 $309M +72,300 −$23M
CHTR, Charter Communications 8.42%, was 8.91% Reduce −9.1% 582,551 $468.53 $273M −57,997 −$76M
MA, Mastercard 2.42% Reduce −1.1% 248,449 $315.48 $78M −2,800 −$11M
MCO, Moody's 1.03% Hold 123,310 $271.97 $34M — —

Exits / last held

Gone since 2022 Q1, shown at their last reported size.

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
META, Meta Platforms 0.61% Exit 0 $222.36 $24M −108,039 −$24M

Weight bar: held both quarters added sold at this quarter’s reported price

* Reported price is value ÷ shares from the 13F as of period end, not a live market quote. Weight % is each long-equity position ÷ full 13F AUM, so rows may not sum to 100% when the filing includes options or other non-equity (excluded from this table). Share change and $ change are vs 2022 Q1. Click a column header to sort, or New, Hold, Add or Reduce to bring those moves to the top. Exit opens the last-held block below.

Filings history

20 periods, with AUM normalized

Newest 13Fs
Period Holds AUM QoQ Form Filed Filing ID
2026 Q2 8 $4.2B +2.8% 13F-HR 8/17/2026 000110465926097527
2026 Q1 8 $4.1B −19.1% 13F-HR 5/15/2026 000110465926062170
2025 Q4 8 $5.1B −6.7% 13F-HR 2/13/2026 000110465926015359
2025 Q3 9 $5.5B −0.1% 13F-HR 11/14/2025 000110465925112002
2025 Q2 9 $5.5B +10.1% 13F-HR 8/14/2025 000110465925078208
2025 Q1 9 $5B +0.6% 13F-HR 5/14/2025 000110465925048610
2024 Q4 10 $4.9B −2.6% 13F-HR 2/14/2025 000110465925014306
2024 Q3 9 $5.1B +4.5% 13F-HR 11/13/2024 000110465924117526
2024 Q2 9 $4.9B +4.4% 13F-HR 8/14/2024 000110465924089560
2024 Q1 8 $4.7B +3.8% RESTATEMENT 5/21/2024 000110465924063732
2024 Q1 8 $4.7B — 13F-HR 5/15/2024 000110465924061859
2023 Q4 8 $4.5B +12.3% 13F-HR 2/15/2024 000110465924024107
2023 Q3 8 $4B −4.1% 13F-HR 11/14/2023 000110465923117428
2023 Q2 8 $4.2B +14.1% 13F-HR 8/14/2023 000110465923091497
2023 Q1 8 $3.7B +14.7% 13F-HR 5/16/2023 000110465923061059
2022 Q4 8 $3.2B +4.2% 13F-HR 2/13/2023 000110465923019687
2022 Q3 8 $3.1B −5.7% 13F-HR 11/14/2022 000110465922118063
2022 Q2 8 $3.2B −17.4% 13F-HR 8/12/2022 000110465922090086
2022 Q1 9 $3.9B +3.4% 13F-HR 5/13/2022 000110465922060139
2021 Q4 8 $3.8B +2.3% 13F-HR 2/14/2022 000110465922022401
2021 Q3 8 $3.7B — 13F-HR 11/15/2021 000110465921138975

About

Altarock Partners LP

21 processed 13Fs on this site, 2021 Q3 to 2026 Q2

SEC filing name
ALTAROCK PARTNERS LP
Location
West Palm Beach, FL
All SEC filings
View on sec.gov