Bruker (BRKR) 10% Owner Frank H. Laukien Sells Shares to Cover Taxes

What Happened

• Frank H. Laukien, a reported 10% owner of Bruker Corporation (BRKR), had shares withheld by the company to satisfy tax withholding obligations related to the vesting of restricted stock units (RSUs). The filing shows dispositions (code F) of 2,361 shares at $53.41 on 2026-08-09 ($126,101) and 4,564 shares at $56.32 on 2026-08-10 ($257,044), for a combined value of approximately $383,145.
• This was not an open-market sale for investment purposes but a routine tax-withholding disposition tied to RSU vesting.

Key Details

• Transaction dates and prices:
  • 2026-08-09: 2,361 shares withheld @ $53.41 = $126,101
  • 2026-08-10: 4,564 shares withheld @ $56.32 = $257,044
• Total shares withheld/disposed: 6,925; total proceeds approx. $383,145.
• Shares owned after the transactions: Not disclosed in the provided filing.
• Footnote: F1 — Shares were withheld by the company to satisfy tax withholding obligations for vested RSUs.
• Filing timeliness: Form 4 filed 2026-08-11 reporting transactions on 2026-08-09 and 2026-08-10; filing appears timely (not marked late).

Context

• These transactions reflect a common cashless (sell-to-cover) withholding method when RSUs vest — shares are surrendered to cover taxes rather than representing a discretionary sale signal.
• As Laukien is a 10% owner, the filing is an insider disclosure for a principal shareholder rather than an executive market-timing trade; routine tax withholding is often administrative.