Key facts
- This page summarizes Karen A. Swager's Form 4 filing for MOSAIC CO (MOS).
- 4 reported transactions and 5 derivative rows are listed below.
- Accepted by SEC: 11 Mar 2026, 16:09.
Karen A. Swager - 09 Mar 2026 Form 4 Insider Report for MOSAIC CO (MOS)
- Reporting relationship
- EVP - Operations
- Issuer ticker
- MOS
- Reported as of
- 09 Mar 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 11 Mar 2026, 16:09:02 UTC
- Prior SEC filing
- 06 Mar 2026
- Next SEC filing
- 02 Apr 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Philip E. Bauer, Attorney-in-Fact for Karen A. Swager
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Karen A. Swager filed Form 4 for MOSAIC CO (MOS) on 11 Mar 2026.
Change
- Previous filing in this sequence was filed on 06 Mar 2026.
- 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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001762750
Primary reporting owner
Swager Karen A
- Relationship
- EVP - Operations
- Address
- C/O THE MOSAIC COMPANY, 101 EAST KENNEDY BLVD., SUITE 2500, TAMPA
- Signature
- /s/ Philip E. Bauer, Attorney-in-Fact for Karen A. Swager
- 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
- +12,181
- Change %
- +7.4%
- Price
- $0.000000*
- Shares after
- 176,547
- Date
- 09 Mar 2026
- Ownership
- Direct
MOS
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +5,138
- Change %
- +2.9%
- Price
- $0.000000*
- Shares after
- 181,685
- Date
- 09 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
MOS
transaction
Common Stock
Tax liability
- Transaction value
- Shares
- -6,087
- Change %
- -3.4%
- Price
- $26.92*
- Shares after
- 175,598
- 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
- -12,181
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 12,181
- Exercise price
- $0.000000
- Footnotes
- F3, F4
MOS
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 15,485
- Date
- 09 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 15,485
- Exercise price
- $0.000000
- Footnotes
- F3, F4
MOS
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 26,528
- Date
- 09 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 26,528
- Exercise price
- $0.000000
- Footnotes
- F4, F5
MOS
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 21,767
- Date
- 09 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 21,767
- Exercise price
- $0.000000
- Footnotes
- F3, F4
MOS
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 29,463
- Date
- 09 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 29,463
- 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.