ALTAROCK PARTNERS LP — MASTERCARD INCORPORATED MA: Quarterly 13F Position History
ALTAROCK PARTNERS LP has reported MASTERCARD INCORPORATED (MA) on 41 13F-HR filings in Pactolio's tracked window, first appearing in Q1 2016. As of Q1 2026, the position is sized at 522,836 shares ($261.2M market value, 6.33% of the equity book). Quarter-over-quarter share count change: 19,000 (-3.5%) .
- 522,836Shares Held (Latest Filing)
- $261.2MReported Market Value (Latest Filing)
- 6.33%Portfolio Weight (% of 13F Equity Book)
- 19,000Quarter-over-Quarter Share Change
- -$48.1MQuarter-over-Quarter Value Change
- 620,033Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 41 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 522,836 | 19,000 | -3.5% | $261.2M | 6.33% | $499.66 |
| Q4 2025 | 541,836 | 42,250 | -7.2% | $309.3M | 6.07% | $570.88 |
| Q3 2025 | 584,086 | 2,168 | -0.4% | $332.2M | 6.07% | $568.81 |
| Q2 2025 | 586,254 | 0 | — | $329.4M | 6.01% | $561.94 |
| Q1 2025 | 586,254 | 0 | — | $321.3M | 6.46% | $548.12 |
| Q4 2024 | 586,254 | 33,779 | -5.4% | $308.7M | 6.24% | $526.57 |
| Q3 2024 | 620,033 | +353,000 | +132.2% | $306.2M | 6.03% | $493.80 |
| Q2 2024 | 267,033 | 0 | — | $117.8M | 2.42% | $441.16 |
| Q1 2024 | 267,033 | 1,961 | -0.7% | $128.6M | 2.76% | $481.57 |
| Q4 2023 | 268,994 | 11,457 | -4.1% | $114.7M | 2.56% | $426.51 |
| Q3 2023 | 280,451 | 14,059 | -4.8% | $111.0M | 2.78% | $395.91 |
| Q2 2023 | 294,510 | 0 | — | $115.8M | 2.78% | $393.30 |
| Q1 2023 | 294,510 | 6,500 | -2.2% | $107.0M | 2.93% | $363.41 |
| Q4 2022 | 301,010 | 27,153 | -8.3% | $104.7M | 3.29% | $347.73 |
| Q3 2022 | 328,163 | +79,714 | +32.1% | $93.3M | 3.05% | $284.34 |
| Q2 2022 | 248,449 | 2,800 | -1.1% | $78.4M | 2.42% | $315.48 |
| Q1 2022 | 251,249 | 0 | — | $89.8M | 2.29% | $357.38 |
| Q4 2021 | 251,249 | +75,000 | +42.6% | $90.3M | 2.38% | $359.32 |
| Q3 2021 | 176,249 | 0 | — | $61.3M | 1.65% | $347.68 |
| Q2 2021 | 176,249 | 0 | — | $64.3M | 1.78% | $365.09 |
| Q1 2021 | 176,249 | 0 | — | $62.8M | 2.39% | $356.05 |
| Q4 2020 | 176,249 | 210,691 | -54.5% | $62.9M | 2.64% | $356.94 |
| Q3 2020 | 386,940 | 25,000 | -6.1% | $130.9M | 6.17% | $338.17 |
| Q2 2020 | 411,940 | +50,000 | +13.8% | $121.8M | 6.25% | $295.70 |
| Q1 2020 | 361,940 | 35,000 | -8.8% | $87.4M | 5.55% | $241.56 |
| Q4 2019 | 396,940 | 0 | — | $118.5M | 7.33% | $298.59 |
| Q3 2019 | 396,940 | 0 | — | $107.8M | 9.34% | $271.57 |
| Q2 2019 | 396,940 | 0 | — | $105.0M | 9.06% | $264.53 |
| Q1 2019 | 396,940 | 0 | — | $93.5M | 8.88% | $235.45 |
| Q4 2018 | 396,940 | 1,350 | -0.3% | $74.9M | 8.91% | $188.65 |
| Q3 2018 | 398,290 | 0 | — | $88.7M | 8.14% | $222.61 |
| Q2 2018 | 398,290 | 0 | — | $78.3M | 8.09% | $196.52 |
| Q1 2018 | 398,290 | 0 | — | $69.8M | 7.98% | $175.16 |
| Q4 2017 | 398,290 | 0 | — | $60.3M | 7.92% | $151.36 |
| Q3 2017 | 398,290 | 0 | — | $56.2M | 8.22% | $141.20 |
| Q2 2017 | 398,290 | 0 | — | $48.4M | 6.81% | $121.45 |
| Q1 2017 | 398,290 | 5,400 | -1.3% | $44.8M | 6.64% | $112.47 |
| Q4 2016 | 403,690 | 0 | — | $41.7M | 6.11% | $103.25 |
| Q3 2016 | 403,690 | 0 | — | $41.1M | 6.54% | $101.77 |
| Q2 2016 | 403,690 | 0 | — | $35.5M | 6.46% | $88.06 |
| Q1 2016 | 403,690 | — | — | $38.1M | 7.03% | $94.50 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did ALTAROCK PARTNERS LP first disclose a MA position in 13F-HR filings?
ALTAROCK PARTNERS LP first reported MASTERCARD INCORPORATED (MA) on its 13F-HR filing for the period ending 2016-03-31 (Q1 2016). The position has appeared on 41 reported quarters within Pactolio's tracked window.
What was ALTAROCK PARTNERS LP's most recent quarter-over-quarter share-count change in MA?
Between Q4 2025 and Q1 2026, ALTAROCK PARTNERS LP reduced its MA position by 19,000 shares (-3.5%), leaving 522,836 shares at a market value of $261.2M.
Does the implied price-per-share represent ALTAROCK PARTNERS LP's cost basis in MA?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.