Mosaic (MOS) director converts 4,873 RSUs and receives 7,273-unit equity grant

Rhea-AI Filing Summary

Mosaic Co director Joao Roberto Goncalves Teixeira reported equity compensation-related transactions, not open-market trading. He acquired 4,873 shares of Common Stock on May 28, 2026 through the exercise of vested restricted stock units, bringing his direct holdings to 13,442 shares after the transaction.

On the same date, he also received a new grant of 7,273 restricted stock units. According to the filing, these units will vest and be paid in shares on the date of Mosaic’s 2027 Annual Meeting of Stockholders, while the 4,873 units exercised had vested on the 2026 Annual Meeting date.

Insider Trade Summary

4,873 shares exercised/converted

Mixed 3 txns

Insider Teixeira Joao Roberto Goncalves

Role null

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	7,273	$0.00	--
Exercise	Restricted Stock Units	4,873	$0.00	--
Exercise	Common Stock	4,873	$0.00	--

Holdings After Transaction: Restricted Stock Units — 7,273 shares (Direct, null); Common Stock — 13,442 shares (Direct, null)

Footnotes (1)

1. One-for-One The restricted stock units will vest and be paid to the reporting person on the date of the issuer's 2027 Annual Meeting of Stockholders. Not Applicable The restricted stock units vested on the date of the issuer's 2026 Annual Meeting of Stockholders.

Key Figures

RSUs exercised: 4,873 shares Common Stock held after transaction: 13,442 shares New RSU grant: 7,273 units +3 more

6 metrics

RSUs exercised 4,873 shares Restricted stock units converted into Common Stock on May 28, 2026

Common Stock held after transaction 13,442 shares Direct holdings after RSU exercise on May 28, 2026

New RSU grant 7,273 units Restricted stock units granted on May 28, 2026

RSU conversion ratio One-for-one Each restricted stock unit converts into one share of Common Stock

2026 vesting event 2026 Annual Meeting Previously granted RSUs vested on the 2026 Annual Meeting date

2027 vesting event 2027 Annual Meeting New RSUs will vest and be paid on the 2027 Annual Meeting date

Key Terms

Restricted Stock Units, Exercise or conversion of derivative security, Grant, award, or other acquisition, Annual Meeting of Stockholders, +1 more

5 terms

Restricted Stock Units financial

"The restricted stock units will vest and be paid to the reporting person..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Annual Meeting of Stockholders financial

"on the date of the issuer's 2027 Annual Meeting of Stockholders"

One-for-One financial

"Footnote states One-for-One for the restricted stock units"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Teixeira Joao Roberto Goncalves

(Last) (First) (Middle)

C/O THE MOSAIC COMPANY

101 EAST KENNEDY BLVD, SUITE 2500

(Street)

TAMPA FLORIDA 33602

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MOSAIC CO [ MOS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/28/2026		M		4,873	A	$0	13,442	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0(1)	05/28/2026		A		7,273		(2)	(3)	Common Stock	7,273	$0	7,273	D
Restricted Stock Units	$0(1)	05/28/2026		M			4,873	(4)	(3)	Common Stock	4,873	$0	0	D

Explanation of Responses:

1. One-for-One

2. The restricted stock units will vest and be paid to the reporting person on the date of the issuer's 2027 Annual Meeting of Stockholders.

3. Not Applicable

4. The restricted stock units vested on the date of the issuer's 2026 Annual Meeting of Stockholders.

Remarks:

	/s/ Philip E. Bauer, Attorney-in-Fact on behalf of Joao Roberto Goncalves Teixeira	06/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Mosaic (MOS) director Joao Teixeira report?

Mosaic director Joao Teixeira reported equity compensation transactions, not market trades. He exercised 4,873 vested restricted stock units into Common Stock and received a new grant of 7,273 restricted stock units, all recorded as direct ownership positions in the filing.

Did Mosaic (MOS) director Joao Teixeira buy or sell shares on the open market?

The filing does not show any open-market buys or sells. Instead, it records the exercise of 4,873 vested restricted stock units into Common Stock and a new grant of 7,273 restricted stock units as part of equity compensation arrangements.

How many Mosaic (MOS) shares does Joao Teixeira hold after these transactions?

After exercising vested restricted stock units, Joao Teixeira directly holds 13,442 shares of Mosaic Common Stock. This figure reflects his ownership following the 4,873-share conversion on May 28, 2026, as reported in the Form 4 filing.

What new restricted stock units did Mosaic (MOS) grant to Joao Teixeira?

Mosaic granted Joao Teixeira 7,273 restricted stock units. These units are equity-based awards that convert one-for-one into Common Stock and, according to the filing, will vest and be paid on the date of Mosaic’s 2027 Annual Meeting of Stockholders.

When did the reported restricted stock units for Mosaic (MOS) vest or vesting occur?

The 4,873 restricted stock units exercised by Joao Teixeira vested on the date of Mosaic’s 2026 Annual Meeting of Stockholders. The newly granted 7,273 restricted stock units will vest and be paid on the date of the company’s 2027 Annual Meeting of Stockholders.

Are Joao Teixeira’s Mosaic (MOS) transactions classified as exercises or grants?

The Form 4 shows both an exercise and a grant. One transaction reflects the exercise or conversion of 4,873 restricted stock units into Common Stock, while another records the grant or award acquisition of 7,273 new restricted stock units to the director.