CAT ROCK CAPITAL MANAGEMENT LP: MICROSOFT (MSFT): Quarterly 13F Position History
As of Q1 2026, CAT ROCK CAPITAL MANAGEMENT LP reported 248,913 shares of MICROSOFT (MSFT), worth $92.1M and representing 14.3% of its 13F equity book. Quarter-over-quarter share count change: + 40,890 (+19.7%) . The position first appeared in Q1 2020 and has been disclosed across 25 13F-HR filings in Pactolio's tracked window.
- 248,913Shares Held (Latest Filing)
- $92.1MReported Market Value (Latest Filing)
- 14.3%Portfolio Weight (% of 13F Equity Book)
- +40,890Quarter-over-Quarter Share Change
- -$8.5MQuarter-over-Quarter Value Change
- 611,000Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 25 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 248,913 | +40,890 | +19.7% | $92.1M | 14.3% | $370.2 |
| Q4 2025 | 208,023 | 17,400 | -7.7% | $100.6M | 14.4% | $483.6 |
| Q3 2025 | 225,423 | 22,982 | -9.3% | $116.8M | 14.4% | $518.0 |
| Q2 2025 | 248,405 | 31,684 | -11.3% | $123.6M | 15.6% | $497.4 |
| Q1 2025 | 280,089 | +182,964 | +188.4% | $105.1M | 14.0% | $375.4 |
| Q4 2024 | 97,125 | 13,600 | -12.3% | $40.9M | 5.4% | $421.5 |
| Q3 2024 | 110,725 | 52,275 | -32.1% | $47.6M | 5.4% | $430.3 |
| Q2 2024 | 163,000 | 0 | — | $72.9M | 8.2% | $446.9 |
| Q1 2024 | 163,000 | 25,000 | -13.3% | $68.6M | 7.9% | $420.7 |
| Q4 2023 | 188,000 | 44,500 | -19.1% | $70.7M | 10.7% | $376.0 |
| Q3 2023 | 232,500 | 30,000 | -11.4% | $73.4M | 10.9% | $315.8 |
| Q2 2023 | 262,500 | 88,500 | -25.2% | $89.4M | 12.3% | $340.5 |
| Q1 2023 | 351,000 | +57,000 | +19.4% | $101.2M | 14.2% | $288.3 |
| Q4 2022 | 294,000 | +23,000 | +8.5% | $70.5M | 13.0% | $239.8 |
| Q3 2022 | 271,000 | 0 | — | $63.1M | 14.1% | $232.9 |
| Q2 2022 | 271,000 | +36,000 | +15.3% | $69.6M | 14.8% | $256.8 |
| Q1 2022 | 235,000 | 21,000 | -8.2% | $72.5M | 7.5% | $308.3 |
| Q4 2021 | 256,000 | 125,000 | -32.8% | $86.1M | 8.3% | $336.3 |
| Q3 2021 | 381,000 | 148,000 | -28.0% | $107.4M | 9.4% | $281.9 |
| Q2 2021 | 529,000 | 82,000 | -13.4% | $143.3M | 12.1% | $270.9 |
| Q1 2021 | 611,000 | 0 | — | $144.1M | 13.4% | $235.8 |
| Q4 2020 | 611,000 | 0 | — | $135.9M | 13.0% | $222.4 |
| Q3 2020 | 611,000 | 0 | — | $128.5M | 13.3% | $210.3 |
| Q2 2020 | 611,000 | +107,000 | +21.2% | $124.3M | 13.1% | $203.5 |
| Q1 2020 | 504,000 | — | — | $79.5M | 9.5% | $157.7 |
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 CAT ROCK CAPITAL MANAGEMENT LP first disclose a MSFT position in 13F-HR filings?
CAT ROCK CAPITAL MANAGEMENT LP first reported MICROSOFT (MSFT) on its 13F-HR filing for the period ending 2020-03-31 (Q1 2020). The position has appeared on 25 reported quarters within Pactolio's tracked window.
What was CAT ROCK CAPITAL MANAGEMENT LP's most recent quarter-over-quarter share-count change in MSFT?
Between Q4 2025 and Q1 2026, CAT ROCK CAPITAL MANAGEMENT LP added 40,890 shares of MSFT (+19.7%), bringing the total reported position to 248,913 shares at a market value of $92.1M.
Does the implied price-per-share represent CAT ROCK CAPITAL MANAGEMENT LP's cost basis in MSFT?
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.