Pennant Investors, LP: TRANSDIGM GROUP INC (TDG): Quarterly 13F Position History
As of Q1 2026, Pennant Investors, LP reported 16,771 shares of TRANSDIGM GROUP INC (TDG), worth $19.4M and representing 5.4% of its 13F equity book. Quarter-over-quarter share count change: 1,700 (-9.2%) . The position first appeared in Q3 2018 and has been disclosed across 31 13F-HR filings in Pactolio's tracked window.
- 16,771Shares Held (Latest Filing)
- $19.4MReported Market Value (Latest Filing)
- 5.4%Portfolio Weight (% of 13F Equity Book)
- 1,700Quarter-over-Quarter Share Change
- -$5.1MQuarter-over-Quarter Value Change
- 61,270Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 31 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 16,771 | 1,700 | -9.2% | $19.4M | 5.4% | $1159.0 |
| Q4 2025 | 18,471 | 0 | — | $24.6M | 6.0% | $1329.8 |
| Q3 2025 | 18,471 | 1,400 | -7.0% | $24.3M | 6.5% | $1318.0 |
| Q2 2025 | 19,871 | 6,700 | -25.2% | $30.2M | 9.0% | $1520.6 |
| Q1 2025 | 26,571 | +7,200 | +37.2% | $36.8M | 11.1% | $1383.3 |
| Q4 2024 | 19,371 | 0 | — | $24.5M | 7.3% | $1267.3 |
| Q3 2024 | 19,371 | 13,000 | -40.2% | $27.6M | 8.2% | $1427.1 |
| Q2 2024 | 32,371 | 9,629 | -22.9% | $41.4M | 11.3% | $1277.6 |
| Q1 2024 | 42,000 | 0 | — | $51.7M | 14.3% | $1231.6 |
| Q4 2023 | 42,000 | 0 | — | $42.5M | 13.1% | $1011.6 |
| Q3 2023 | 42,000 | 0 | — | $35.4M | 13.4% | $843.1 |
| Q2 2023 | 42,000 | 0 | — | $37.6M | 13.3% | $894.2 |
| Q1 2023 | 42,000 | 0 | — | $31.0M | 12.9% | $737.0 |
| Q4 2022 | 42,000 | +13,906 | +49.5% | $26.4M | 13.2% | $629.6 |
| Q3 2022 | 28,094 | 3,406 | -10.8% | $14.7M | 8.4% | $524.8 |
| Q2 2022 | 31,500 | 0 | — | $16.9M | 7.3% | $536.7 |
| Q1 2022 | 31,500 | +3,406 | +12.1% | $20.5M | 8.2% | $651.6 |
| Q4 2021 | 28,094 | 0 | — | $17.9M | 6.3% | $636.3 |
| Q3 2021 | 28,094 | 0 | — | $17.5M | 5.3% | $624.6 |
| Q2 2021 | 28,094 | 0 | — | $18.2M | 4.6% | $647.3 |
| Q1 2021 | 28,094 | 0 | — | $16.5M | 5.1% | $587.9 |
| Q4 2020 | 28,094 | 7,906 | -22.0% | $17.4M | 5.6% | $618.9 |
| Q3 2020 | 36,000 | +6,600 | +22.4% | $17.1M | 6.2% | $475.1 |
| Q2 2020 | 29,400 | 24,700 | -45.7% | $13.0M | 5.6% | $442.0 |
| Q1 2020 | 54,100 | +6,600 | +13.9% | $17.3M | 7.6% | $320.2 |
| Q4 2019 | 47,500 | 3,000 | -5.9% | $26.6M | 10.3% | $560.0 |
| Q3 2019 | 50,500 | 0 | — | $26.3M | 9.6% | $520.7 |
| Q2 2019 | 50,500 | +8,200 | +19.4% | $24.4M | 11.1% | $483.8 |
| Q1 2019 | 42,300 | +2,000 | +5.0% | $19.2M | 7.9% | $454.0 |
| Q4 2018 | 40,300 | 20,970 | -34.2% | $13.7M | 5.7% | $340.0 |
| Q3 2018 | 61,270 | — | — | $22.8M | 8.5% | $372.3 |
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 Pennant Investors, LP first disclose a TDG position in 13F-HR filings?
Pennant Investors, LP first reported TRANSDIGM GROUP INC (TDG) on its 13F-HR filing for the period ending 2018-09-30 (Q3 2018). The position has appeared on 31 reported quarters within Pactolio's tracked window.
What was Pennant Investors, LP's most recent quarter-over-quarter share-count change in TDG?
Between Q4 2025 and Q1 2026, Pennant Investors, LP reduced its TDG position by 1,700 shares (-9.2%), leaving 16,771 shares at a market value of $19.4M.
Does the implied price-per-share represent Pennant Investors, 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.