Russell A. Flugel - 09 Mar 2026 Form 4 Insider Report for MOSAIC CO (MOS)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
11 Mar 2026, 16:08:55 UTC
Prior SEC filing
28 May 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Philip E. Bauer, Attorney-in-Fact for Russell A. Flugel

Key filing fact

Russell A. Flugel filed Form 4 for MOSAIC CO (MOS) on 11 Mar 2026.

Key facts

  • This page summarizes Russell A. Flugel's Form 4 filing for MOSAIC CO (MOS).
  • 4 reported transactions and 5 derivative rows are listed below.
  • Accepted by SEC: 11 Mar 2026, 16:08.

Change

  • Previous filing in this sequence was filed on 28 May 2025.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001643125 Primary reporting owner

Flugel Russell A

Relationship
Principal Accounting Officer
Address
C/O THE MOSAIC COMPANY, 101 EAST KENNEDY BLVD, SUITE 2500, TAMPA
Signature
/s/ Philip E. Bauer, Attorney-in-Fact for Russell A. Flugel
Signature date
11 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MOS transaction

Common Stock

Options Exercise

Transaction value
Shares
+4,437
Change %
+48%
Price
$0.000000*
Shares after
13,737
Date
09 Mar 2026
Ownership
Direct
MOS transaction

Common Stock

Options Exercise

Transaction value
Shares
+1,108
Change %
+8.1%
Price
$0.000000*
Shares after
14,845
Date
09 Mar 2026
Ownership
Direct
Footnotes
F1
MOS transaction

Common Stock

Tax liability

Transaction value
Shares
-2,384
Change %
-16%
Price
$26.92*
Shares after
12,461
Date
09 Mar 2026
Ownership
Direct
Footnotes
F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MOS transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-4,437
Change %
-100%
Price
$0.000000*
Shares after
0
Date
09 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
4,437
Exercise price
$0.000000
Footnotes
F3, F4
MOS holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
8,074
Date
09 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
8,074
Exercise price
$0.000000
Footnotes
F3, F4, F5
MOS holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
8,540
Date
09 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
8,540
Exercise price
$0.000000
Footnotes
F3, F4
MOS holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
6,199
Date
09 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
6,199
Exercise price
$0.000000
Footnotes
F3, F4
MOS holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
11,560
Date
09 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
11,560
Exercise price
$0.000000
Footnotes
F3, F4
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Shares Issued to reporting person upon the vesting of a performance unit award granted to reporting person on March 9, 2023. The performance unit award was not a derivative security.

Footnote F2

Shares sold to cover tax liability incurred as a result of most recent vesting of restricted stock and performance units.

Footnote F3

One-for-One

Footnote F4

Not Applicable

Footnote F5

The Restricted Stock Unit will vest a cumulative vesting percentage equal to 33% on March 4, 2027, 66% on March 4, 2028 and 100% on March 4, 2029.

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