DOSSIER · 13F Holders · Q1 2026

MOSAIC CO NEW CALL

8 institutions still hold MOSAIC CO NEW CALL as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 61945C903·8 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$91M
visible holders
Holders
8
filers reporting
Concentration
28.11%
Garda Capital Partners LP #1
top holder share
AI Holders Summary · Q1 2026

8 institutions reported MOSAIC CO NEW CALL in Q1 2026. Garda Capital Partners LP leads at 28.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Garda Capital Partners LP
CIK 0001666905
$26M1.0M6.68%Q1 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$25M987K0.01%Q1 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$24M951K0.05%Q1 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$9M348K0.01%Q1 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$6M227K0.00%Q1 2026
06
CenterStar Asset Management, LLC
CIK 0001722053
$1M40K0.13%Q1 2026
07
Warberg Asset Management LLC
CIK 0001597506
$765K30K0.13%Q1 2026
08
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025