Atalan Capital Partners, LP: TRANSDIGM GROUP INC (TDG): Quarterly 13F Position History
As of Q1 2026, Atalan Capital Partners, LP reported 84,500 shares of TRANSDIGM GROUP INC (TDG), worth $97.9M and representing 9.0% of its 13F equity book. Quarter-over-quarter share count change: 3,150 (-3.6%) . The position first appeared in Q4 2019 and has been disclosed across 26 13F-HR filings in Pactolio's tracked window.
- 84,500Shares Held (Latest Filing)
- $97.9MReported Market Value (Latest Filing)
- 9.0%Portfolio Weight (% of 13F Equity Book)
- 3,150Quarter-over-Quarter Share Change
- -$18.6MQuarter-over-Quarter Value Change
- 305,000Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 26 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 84,500 | 3,150 | -3.6% | $97.9M | 9.0% | $1159.0 |
| Q4 2025 | 87,650 | 5,100 | -5.5% | $116.6M | 8.3% | $1329.8 |
| Q3 2025 | 92,750 | +2,750 | +3.1% | $122.2M | 8.5% | $1318.0 |
| Q2 2025 | 90,000 | 0 | — | $136.9M | 10.5% | $1520.6 |
| Q1 2025 | 90,000 | 13,000 | -12.6% | $124.5M | 11.8% | $1383.3 |
| Q4 2024 | 103,000 | 0 | — | $130.5M | 13.0% | $1267.3 |
| Q3 2024 | 103,000 | 10,500 | -9.3% | $147.0M | 12.6% | $1427.1 |
| Q2 2024 | 113,500 | 36,500 | -24.3% | $145.0M | 13.5% | $1277.6 |
| Q1 2024 | 150,000 | 50,000 | -25.0% | $184.7M | 15.3% | $1231.6 |
| Q4 2023 | 200,000 | 52,680 | -20.8% | $202.3M | 17.8% | $1011.6 |
| Q3 2023 | 252,680 | 32,062 | -11.3% | $213.0M | 20.0% | $843.1 |
| Q2 2023 | 284,742 | 18,175 | -6.0% | $254.6M | 20.0% | $894.2 |
| Q1 2023 | 302,917 | 0 | — | $223.3M | 18.8% | $737.0 |
| Q4 2022 | 302,917 | 0 | — | $190.7M | 18.1% | $629.6 |
| Q3 2022 | 302,917 | 2,083 | -0.7% | $159.0M | 17.5% | $524.8 |
| Q2 2022 | 305,000 | +22,000 | +7.8% | $163.7M | 15.9% | $536.7 |
| Q1 2022 | 283,000 | 0 | — | $184.4M | 13.6% | $651.5 |
| Q4 2021 | 283,000 | +20,000 | +7.6% | $180.1M | 11.5% | $636.3 |
| Q3 2021 | 263,000 | +26,000 | +11.0% | $164.3M | 10.2% | $624.6 |
| Q2 2021 | 237,000 | +22,000 | +10.2% | $153.4M | 9.3% | $647.3 |
| Q1 2021 | 215,000 | +56,500 | +35.6% | $126.4M | 8.6% | $587.9 |
| Q4 2020 | 158,500 | +40,500 | +34.3% | $98.1M | 8.7% | $618.9 |
| Q3 2020 | 118,000 | +55,500 | +88.8% | $56.1M | 4.9% | $475.1 |
| Q2 2020 | 62,500 | +62,500 | — | $27.6M | 2.6% | $442.0 |
| Q1 2020 | 0 | 40,000 | -100.0% | $0 | 0.0% | — |
| Q4 2019 | 40,000 | — | — | $22.4M | 2.4% | $560.0 |
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 Atalan Capital Partners, LP first disclose a TDG position in 13F-HR filings?
Atalan Capital Partners, LP first reported TRANSDIGM GROUP INC (TDG) on its 13F-HR filing for the period ending 2019-12-31 (Q4 2019). The position has appeared on 26 reported quarters within Pactolio's tracked window.
What was Atalan Capital Partners, LP's most recent quarter-over-quarter share-count change in TDG?
Between Q4 2025 and Q1 2026, Atalan Capital Partners, LP reduced its TDG position by 3,150 shares (-3.6%), leaving 84,500 shares at a market value of $97.9M.
Does the implied price-per-share represent Atalan Capital Partners, LP's cost basis in TDG?
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.