Dorsey Asset Management, LLC: AERCAP HOLDINGS NV (AER): Quarterly 13F Position History
As of Q1 2026, Dorsey Asset Management, LLC reported 1,123,489 shares of AERCAP HOLDINGS NV (AER), worth $154.1M and representing 12.3% of its 13F equity book. Quarter-over-quarter share count change: 91,570 (-7.5%) . The position first appeared in Q1 2025 and has been disclosed across 5 13F-HR filings in Pactolio's tracked window.
- 1,123,489Shares Held (Latest Filing)
- $154.1MReported Market Value (Latest Filing)
- 12.3%Portfolio Weight (% of 13F Equity Book)
- 91,570Quarter-over-Quarter Share Change
- -$20.6MQuarter-over-Quarter Value Change
- 1,361,118Peak 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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,123,489 | 91,570 | -7.5% | $154.1M | 12.3% | $137.2 |
| Q4 2025 | 1,215,059 | 48,939 | -3.9% | $174.7M | 15.2% | $143.8 |
| Q3 2025 | 1,263,998 | 97,120 | -7.1% | $152.9M | 13.7% | $121.0 |
| Q2 2025 | 1,361,118 | +222,576 | +19.5% | $159.3M | 14.3% | $117.0 |
| Q1 2025 | 1,138,542 | — | — | $116.3M | 12.3% | $102.2 |
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 Dorsey Asset Management, LLC first disclose a AER position in 13F-HR filings?
Dorsey Asset Management, LLC first reported AERCAP HOLDINGS NV (AER) on its 13F-HR filing for the period ending 2025-03-31 (Q1 2025). The position has appeared on 5 reported quarters within Pactolio's tracked window.
What was Dorsey Asset Management, LLC's most recent quarter-over-quarter share-count change in AER?
Between Q4 2025 and Q1 2026, Dorsey Asset Management, LLC reduced its AER position by 91,570 shares (-7.5%), leaving 1,123,489 shares at a market value of $154.1M.
Does the implied price-per-share represent Dorsey Asset Management, LLC's cost basis in AER?
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.