DOSSIER · 13F Holders · Q3 2026

THERMO FISHER SCIENTIFIC INC

7 institutions still hold THERMO FISHER SCIENTIFIC INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 883556902·7 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$279M
visible holders
Holders
7
filers reporting
Concentration
69.94%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

7 institutions reported THERMO FISHER SCIENTIFIC INC in Q3 2026. IMC-Chicago, LLC leads at 69.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$195M289K0.04%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$39M57K0.02%Q3 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$17M25K0.00%Q3 2026
04
Maven Securities LTD
CIK 0001633046
$15M29K0.29%Q2 2026
05
GROUP ONE TRADING LLC
CIK 0000932540
$12M18K0.02%Q3 2026
06
Baer Investment Advisory LLC
CIK 0002057153
$1M651.06%Q3 2026
07
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025