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.
6.375% Preferred Stock Series A
Granted 136.3K · Bought 122.6K
Granted 16.9K
Granted 91.5K · Sold 52.8K
Granted 41.0K
Granted 30.2K · Sold 8.4K
Granted 40.2K
Granted 43.4K · Sold 28.1K
Granted 25.2K · Sold 6.2K
Granted 22.7K · Sold 4.7K
Granted 25.2K · Sold 15.0K
Granted 10.2K
Granted 13.5K · Sold 15.3K
Granted 14.5K · Sold 3.5K
Granted 10.2K
Granted 9.0K
Granted 2.4K
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 · 19 transactions | +0.9% | 40.43Mas of Aug 2025 | 136.3K | 122.6K | — |
| Srega JuergenPRESIDENT CALID · 2 transactions | +973.3% | 157.7Kas of Aug 2024 | 16.9K | — | — |
| Munch MarkEXEC VP&PRES BRUKER NANO INC. · 30 transactions | +27.5% | 128.4K | 91.5K | — | 52.8K |
| Herman Gerald NEXECUTIVE VICE PRESIDENT, CFO · 10 transactions | +44.6% | 102.6Kas of Aug 2025 | 41.0K | — | — |
| Packer Richard ADirector · 7 transactions | +30.4% | 93.7K | 30.2K | — | 8.4K |
| Linton William ADirector · 6 transactions | +174.4% | 63.2K | 40.2K | — | — |
| Busse FalkoPRESIDENT, BIOSPIN GROUP · 9 transactions | +46.6% | 48.2Kas of Aug 2025 | 43.4K | — | 28.1K |
| Ornell John ADirector · 6 transactions | +91.3% | 39.7K | 25.2K | — | 6.2K |
| Rosenthal BobDirector · 6 transactions | +86.7% | 38.8K | 22.7K | — | 4.7K |
| Requardt Hermann FritzDirector · 7 transactions | +49.1% | 31.0K | 25.2K | — | 15.0K |
| Perkins Adelene QDirector · 3 transactions | +53.8% | 29.1K | 10.2K | — | — |
| Prause BurkhardPRES. & CEO, BRUKER BEST · 7 transactions | -6.6% | 25.2Kas of Aug 2025 | 13.5K | — | 15.3K |
| Friend Cynthia MDirector · 5 transactions | +94.7% | 22.5K | 14.5K | — | 3.5K |
| Anderson Bonnie HDirector · 3 transactions | +43429.3% | 17.8K | 10.2K | — | — |
| Francis LauraDirector · 2 transactions | — | 9.0K | 9.0K | — | — |
| Ma PhilipDirector · 1 transaction | +66.3% | 6.0Kas of Jan 2024 | 2.4K | — | — |
| 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 3 years: -11.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.