MADISON DEARBORN PARTNERS LLC

Ten-percent owner · AVEX

As of 2026-09-16, MADISON DEARBORN PARTNERS LLC has 26 Form 4 transactions on record across 1 company — 26 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $0Indirect: $930.8M$930.8Mas of 2026-09-16
  • Direct $0
  • Indirect $930.8M
AVEXindirect57,564,830 sh$930.8M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

AVEX · 26 trades
2026-06-05: Sale, 2,273,843 sh ($59.1M)2026-06-05: Other acquisition, 2,611 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Other acquisition, 2,611 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Other acquisition, 2,611 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Other acquisition, 2,611 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Other acquisition, 2,611 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh2026-06-05: Disposition, 4,757,448 sh2026-06-05: Other acquisition, 975,246 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-05AVEXSale2,273,843 @ $25.99$59.1M−9.0% of holding22,861,457Form 4
25 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-05AVEXOther acquisition2,61122,858,846Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXOther acquisition2,61122,858,846Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXOther acquisition2,61122,858,846Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXOther acquisition2,61122,858,846Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXOther acquisition2,61122,858,846Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4
2026-06-05AVEXDisposition4,757,44858,540,076Form 4
2026-06-05AVEXOther acquisition975,24657,564,830Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.