Oakcliff Capital Partners, LP: TRANSDIGM GROUP INC (TDG): Quarterly 13F Position History
As of Q1 2026, Oakcliff Capital Partners, LP reported 24,170 shares of TRANSDIGM GROUP INC (TDG), worth $28.0M and representing 12.4% of its 13F equity book. The position first appeared in Q1 2017 and has been disclosed across 37 13F-HR filings in Pactolio's tracked window.
- 24,170Shares Held (Latest Filing)
- $28.0MReported Market Value (Latest Filing)
- 12.4%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- -$4.1MQuarter-over-Quarter Value Change
- 58,873Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 37 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 24,170 | 0 | — | $28.0M | 12.4% | $1159.0 |
| Q4 2025 | 24,170 | 0 | — | $32.1M | 13.8% | $1329.8 |
| Q3 2025 | 24,170 | +2,877 | +13.5% | $31.9M | 13.7% | $1318.0 |
| Q2 2025 | 21,293 | 0 | — | $32.4M | 16.2% | $1520.6 |
| Q1 2025 | 21,293 | 0 | — | $29.5M | 15.5% | $1383.3 |
| Q4 2024 | 21,293 | 131 | -0.6% | $27.0M | 13.8% | $1267.3 |
| Q3 2024 | 21,424 | 0 | — | $30.6M | 15.4% | $1427.1 |
| Q2 2024 | 21,424 | 0 | — | $27.4M | 14.6% | $1277.6 |
| Q1 2024 | 21,424 | 2,884 | -11.9% | $26.4M | 15.8% | $1231.6 |
| Q4 2023 | 24,308 | 0 | — | $24.6M | 15.5% | $1011.6 |
| Q3 2023 | 24,308 | 8,090 | -25.0% | $20.5M | 14.1% | $843.1 |
| Q2 2023 | 32,398 | 4,800 | -12.9% | $29.0M | 19.3% | $894.2 |
| Q1 2023 | 37,198 | 14,500 | -28.0% | $27.4M | 19.1% | $737.0 |
| Q4 2022 | 51,698 | 4,000 | -7.2% | $32.6M | 24.3% | $629.7 |
| Q3 2022 | 55,698 | 0 | — | $29.2M | 24.6% | $524.8 |
| Q2 2022 | 55,698 | 0 | — | $29.9M | 22.0% | $536.7 |
| Q1 2022 | 55,698 | 0 | — | $36.3M | 18.8% | $651.5 |
| Q4 2021 | 55,698 | 0 | — | $35.4M | 16.2% | $636.3 |
| Q3 2021 | 55,698 | 0 | — | $34.8M | 15.4% | $624.6 |
| Q2 2021 | 55,698 | 0 | — | $36.1M | 15.5% | $647.3 |
| Q1 2021 | 55,698 | 0 | — | $32.7M | 15.5% | $587.9 |
| Q4 2020 | 55,698 | 3,175 | -5.4% | $34.5M | 13.7% | $618.9 |
| Q3 2020 | 58,873 | 0 | — | $28.0M | 12.1% | $475.1 |
| Q2 2020 | 58,873 | 0 | — | $26.0M | 13.8% | $442.1 |
| Q1 2020 | 58,873 | +24,600 | +71.8% | $18.9M | 13.2% | $320.2 |
| Q4 2019 | 34,273 | 0 | — | $19.2M | 11.5% | $560.0 |
| Q3 2019 | 34,273 | 0 | — | $17.8M | 12.1% | $520.7 |
| Q2 2019 | 34,273 | 5,833 | -14.5% | $16.6M | 12.2% | $483.8 |
| Q1 2019 | 40,106 | 9,000 | -18.3% | $18.2M | 13.2% | $454.0 |
| Q4 2018 | 49,106 | 0 | — | $16.7M | 13.7% | $340.1 |
| Q3 2018 | 49,106 | 0 | — | $18.3M | 13.6% | $372.3 |
| Q2 2018 | 49,106 | 0 | — | $16.9M | 12.8% | $345.1 |
| Q1 2018 | 49,106 | 0 | — | $15.1M | 12.9% | $306.9 |
| Q4 2017 | 49,106 | 0 | — | $13.5M | 11.8% | $274.6 |
| Q3 2017 | 49,106 | 621 | -1.2% | $12.6M | 10.6% | $255.6 |
| Q2 2017 | 49,727 | 0 | — | $13.4M | 12.4% | $268.9 |
| Q1 2017 | 49,727 | — | — | $10.9M | 10.5% | $220.2 |
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 Oakcliff Capital Partners, LP first disclose a TDG position in 13F-HR filings?
Oakcliff Capital Partners, LP first reported TRANSDIGM GROUP INC (TDG) on its 13F-HR filing for the period ending 2017-03-31 (Q1 2017). The position has appeared on 37 reported quarters within Pactolio's tracked window.
What was Oakcliff Capital Partners, LP's most recent quarter-over-quarter share-count change in TDG?
Oakcliff Capital Partners, LP held the same 24,170 shares of TDG between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Oakcliff 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.