Frank H. Laukien owns 26.12% of Bruker
40,511,121 shares as of the August 15, 2026 filing, worth $2.2B at the latest close.
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Free.
The stake
26.12%
worth $2.2B at the latest close
Stake rank
#54
by dollar value of the stake
Last sale
1,168 days ago
Aug 8, 2023
Last buy
500 days ago
Jun 6, 2025 · $100,043
Frank H. Laukien owns 26.12% of BRUKER CORP: 40,511,121 of 155,119,316 shares, worth about $2.2B at the 2026-10-16 close. The stake has moved from 26.13% in 2016 to 26.12% on 2026-08-15, across 10 sales and 15 purchases that moved it since 2016. The last trade that moved it was a discretionary purchase of $100,043 on 2025-06-06.
How the stake is held
as of the Aug 15, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Aug 15, 2026 · Form 4 ↗
HELD DIRECTLY
38,507,043
95.1%
HELD INDIRECTLY · 4 VEHICLES
2,004,078
4.9%
By Former Spouse
1,056,682
2.6%
By Son
337,359
0.8%
By Daughter
336,607
0.8%
As UTMA Custodian for Son
273,430
0.7%
THE STAKE
40,511,121
26.12%