Islander Capital Partners, L.P. — TRANSDIGM GROUP INC TDG: Quarterly 13F Position History
Islander Capital Partners, L.P. has reported TRANSDIGM GROUP INC (TDG) on 2 13F-HR filings in Pactolio's tracked window, first appearing in Q4 2025. As of Q1 2026, the position is sized at 13,580 shares ($15.7M market value, 6.20% of the equity book). Quarter-over-quarter share count change: + 1,630 (+13.6%) .
- 13,580Shares Held (Latest Filing)
- $15.7MReported Market Value (Latest Filing)
- 6.20%Portfolio Weight (% of 13F Equity Book)
- +1,630Quarter-over-Quarter Share Change
- -$153.0KQuarter-over-Quarter Value Change
- 13,580Peak Reported Shares (Historical)
Recent initiation: Islander Capital Partners, L.P. first reported TDG on the Q4 2025 filing — fewer than three quarters of history are available.
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 2 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 13,580 | +1,630 | +13.6% | $15.7M | 6.20% | $1158.96 |
| Q4 2025 | 11,950 | — | — | $15.9M | 7.16% | $1329.85 |
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 Islander Capital Partners, L.P. first disclose a TDG position in 13F-HR filings?
Islander Capital Partners, L.P. first reported TRANSDIGM GROUP INC (TDG) on its 13F-HR filing for the period ending 2025-12-31 (Q4 2025). The position has appeared on 2 reported quarters within Pactolio's tracked window.
What was Islander Capital Partners, L.P.'s most recent quarter-over-quarter share-count change in TDG?
Between Q4 2025 and Q1 2026, Islander Capital Partners, L.P. added 1,630 shares of TDG (+13.6%), bringing the total reported position to 13,580 shares at a market value of $15.7M.
Does the implied price-per-share represent Islander Capital Partners, L.P.'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.