Bruker Corporation
A maker of high-performance scientific instruments, Bruker builds the NMR, mass spectrometry, X-ray, and microscopy tools that researchers use to study molecules, cells, and materials, plus superconducting wire for MRI and fusion energy. It was founded in 1960 in a backyard workshop in Karlsruhe, Germany, by physicist Günther Laukien and Dr. Emil Bruker. The company carries Bruker's name because German rules barred professors from commercializing their research, so Laukien couldn't be listed as a founder.
Granted 411.7K · Bought 124.3K · Sold 890.9K
Granted 221.9K · Sold 202.2K
Granted 137.9K · Sold 74.1K
Granted 65.6K · Sold 14.2K
Granted 54.0K · Sold 28.4K
Granted 60.0K
Granted 52.6K · Sold 28.1K
Granted 29.0K · Sold 6.2K
Granted 26.5K · Sold 4.7K
Granted 29.0K · Sold 15.0K
Granted 14.0K
Granted 18.4K · Sold 15.3K
Granted 18.3K · Sold 4.5K
Granted 14.0K
Granted 9.0K
Granted 23.8K · Sold 31.1K
Granted 6.0K
Granted 4.5K
Granted 3.0K · Bought 500
Granted 2.9K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Laukien Frank HPRESIDENT & CEO, Director, 10% owner · 60 transactions | 0% | 40.43Mas of Aug 2025 | 411.7K | 124.3K | 890.9K |
| Srega JuergenPRESIDENT CALID · 8 transactions | +10.4% | 157.7Kas of Aug 2024 | 221.9K | — | 202.2K |
| Munch MarkEXEC VP&PRES BRUKER NANO INC. · 41 transactions | +51% | 128.4K | 137.9K | — | 74.1K |
| Herman Gerald NEXECUTIVE VICE PRESIDENT, CFO · 16 transactions | +117.4% | 102.6Kas of Aug 2025 | 65.6K | — | 14.2K |
| Packer Richard ADirector · 12 transactions | +61.4% | 93.7K | 54.0K | — | 28.4K |
| Linton William ADirector · 11 transactions | -27.9% | 63.2K | 60.0K | — | — |
| Busse FalkoPRESIDENT, BIOSPIN GROUP · 11 transactions | +103.5% | 48.2Kas of Aug 2025 | 52.6K | — | 28.1K |
| Ornell John ADirector · 8 transactions | +134.3% | 39.7K | 29.0K | — | 6.2K |
| Rosenthal BobDirector · 8 transactions | +128.7% | 38.8K | 26.5K | — | 4.7K |
| Requardt Hermann FritzDirector · 9 transactions | +82.6% | 31.0K | 29.0K | — | 15.0K |
| Perkins Adelene QDirector · 5 transactions | +92.5% | 29.1K | 14.0K | — | — |
| Prause BurkhardPRES. & CEO, BRUKER BEST · 9 transactions | -5% | 25.2Kas of Aug 2025 | 18.4K | — | 15.3K |
| Friend Cynthia MDirector · 8 transactions | +159.5% | 22.5K | 18.3K | — | 4.5K |
| Anderson Bonnie HDirector · 5 transactions | +364.6% | 17.8K | 14.0K | — | — |
| Francis LauraDirector · 2 transactions | — | 9.0K | 9.0K | — | — |
| Kastner Marc ADirector · 7 transactions | -27.8% | 8.1Kas of May 2023 | 23.8K | — | 31.1K |
| Ma PhilipDirector · 3 transactions | — | 6.0Kas of Jan 2024 | 6.0K | — | — |
| Phillips JackDirector · 1 transaction | — | 4.5K | 4.5K | — | — |
| Bures ThomasChief Accounting Officer · 3 transactions | — | 3.2K | 3.0K | 500 | — |
| Bernard ThierryDirector · 1 transaction | — | 2.9K | 2.9K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -1.19M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.