Praesidium Investment Management Company, LLC: TRANSDIGM GROUP INC (TDG): Quarterly 13F Position History
As of Q2 2026, Praesidium Investment Management Company, LLC reported 8,081 shares of TRANSDIGM GROUP INC (TDG), worth $10.8M and representing 5.0% of its 13F equity book. Quarter-over-quarter share count change: 23,379 (-74.3%) . The position first appeared in Q2 2025 and has been disclosed across 5 13F-HR filings in Pactolio's tracked window.
- 8,081Shares Held (Latest Filing)
- $10.8MReported Market Value (Latest Filing)
- 5.0%Portfolio Weight (% of 13F Equity Book)
- 23,379Quarter-over-Quarter Share Change
- -$25.7MQuarter-over-Quarter Value Change
- 32,086Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 5 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 8,081 | 23,379 | -74.3% | $10.8M | 5.0% | $1332.0 |
| Q1 2026 | 31,460 | +5,260 | +20.1% | $36.5M | 8.7% | $1159.0 |
| Q4 2025 | 26,200 | 5,312 | -16.9% | $34.8M | 6.5% | $1329.8 |
| Q3 2025 | 31,512 | 574 | -1.8% | $41.5M | 8.1% | $1318.0 |
| Q2 2025 | 32,086 | – | – | $48.8M | 8.6% | $1520.6 |
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 rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did Praesidium Investment Management Company, LLC first disclose a TDG position in 13F-HR filings?
Praesidium Investment Management Company, LLC first reported TRANSDIGM GROUP INC (TDG) on its 13F-HR filing for the period ending 2025-06-30 (Q2 2025). The position has appeared on 5 reported quarters within Pactolio's tracked window.
What was Praesidium Investment Management Company, LLC's most recent quarter-over-quarter share-count change in TDG?
Between Q1 2026 and Q2 2026, Praesidium Investment Management Company, LLC reduced its TDG position by 23,379 shares (-74.3%), leaving 8,081 shares at a market value of $10.8M.
Does the implied price-per-share represent Praesidium Investment Management Company, LLC'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.