What SEC filings does The Mosaic Company submit to the SEC?

The Mosaic Company (MOS) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about MOS?

A Form 4 for MOS discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from The Mosaic Company?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for MOS?

The 10-K is The Mosaic Company's annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all MOS SEC filings directly on EDGAR?

You can view all historical The Mosaic Company filings on the SEC EDGAR company page for MOS. Each filing card on this page links directly to the original SEC document.

How often does The Mosaic Company file with the SEC?

The Mosaic Company files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling MOS shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

MOS SEC Filing News — The Mosaic Company

Latest SEC filings for The Mosaic Company (MOS) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-02.

The Mosaic Company, through its subsidiaries, produces and markets concentrated phosphate and potash crop nutrients. It operates in three segments: Phosphates, Potash, and Mosaic Fertilizantes. The company owns and operates mines and production facilities, which produce concentrated phosphate crop nutrients and phosphate-based animal feed ingredients, as well as concentrated phosphate crop nutrients, such as diammonium phosphate, monoammonium phosphate, and MicroEssentials, a value-added ammonia…

Sector: Basic Materials Industry: Agricultural Inputs Market Cap: $5.7B

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for MOS currently lean bearish. Of the 20 filing records displayed, 1 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

MOS Filing Activity Snapshot 2026-06-01 — 2026-10-02

Insider Transactions (Form 4)

0 buys vs 1 sell

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$508.8K

Precourt Walter F. III (SVP - Chief Admin Officer) · 2026-08-21

23,000 shares · Form 4

8-K Item Codes Filed

Item 5.02: Departure / Election of Directors or Officers; Item 9.01: Financial Statements and Exhibits Item 2.04: Triggering Events

Item codes identify the type of material event disclosed (e.g. 2.02 = earnings results, 5.02 = executive change, 1.01 = material agreement).

Form 144 Notices

Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 10 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 10 filings in this group are Form 4s for The Mosaic Company.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 10 insider filings shown, the breakdown is 9 compensation award and 1 open-market sale. 1 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×9: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×1: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Form 4 Compensation award Tax / Compensation Filing 2026-10-02

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Little Sonya C (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	65	$24.73	$1.6K

Filing: Form 4 (Insider Transaction) Insider: Little Sonya C (Director) Shares: 65

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-21

MOS insider Precourt Walter F. III (SVP - Chief Admin Officer) sold 23,000 shares (~$508.8K)

Precourt Walter F. III, listed as SVP - Chief Admin Officer at MOSAIC CO, reported an open-market sale of 23,000 MOS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	23,000	$22.12	$508.8K

Filing: Form 4 (Insider Transaction) Insider: Precourt Walter F. III (SVP - Chief Admin Officer) Shares: 23,000 Est. Value: $508.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Kuzenko Jody Lynne (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Kuzenko Jody Lynne (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Shanahan Kathleen M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Shanahan Kathleen M (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Gitzel Timothy S. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Gitzel Timothy S. (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Watkins Gretchen H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Watkins Gretchen H (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Koenig Emery N. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Koenig Emery N. (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Teixeira Joao Roberto Goncalves (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	4,873	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Teixeira Joao Roberto Goncalves (Director) Shares: 4,873

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

BEEBE CHERYL K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	2,437	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: BEEBE CHERYL K (Director) Shares: 2,437

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-01

MOS insider Form 4 filed for equity award, exercise, or tax withholding

Seaton David Thomas (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	3,167	—	—
`A`	Compensation award derivative · Restricted Stock Units	7,273	—	—
`M`	Option exercise derivative · Restricted Stock Units	4,873	—	—

Filing: Form 4 (Insider Transaction) Insider: Seaton David Thomas (Director) Shares: 3,167

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. The Mosaic Company has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-19

MOS Form 144 filed for proposed insider sale by Precourt Walter F. III (23,000 shares) ~$508.6K

Precourt Walter F. III filed a Form 144 with the SEC indicating intent to sell MOS (MOSAIC CO) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Precourt Walter F. III Shares: 23,000 Est. Value: $508.6K

View on SEC EDGAR → Open Filing Document →

Material Events 8 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 8 in this period for The Mosaic Company. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

The items reported in this period are: Item 5.02: Departure / Election of Directors or Officers; Item 9.01: Financial Statements and Exhibits; Item 2.04: Triggering Events.

Form 8-K Leadership Change 2026-09-25

MOS filed 8-K — Departure / Election of Directors or Officers

MOSAIC CO filed an 8-K with the SEC. Item 5.02: Departure / Election of Directors or Officers; Item 9.01: Financial Statements and Exhibits. Filing excerpt: 8-K 1 formxchangeofofficerssepte.htm 8-K Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 23, 2026 THE MOSAIC COMPANY (Exact name of registrant as specified in its charter) DE 001-32327 20-1026454 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 101 East Kennedy Blvd. 33602…

Filing: 8-K (Material Event) Item 5.02: Departure / Election of Directors or Officers; Item 9.01: Financial Statements and Exhibits

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-28

MOS filed 8-K — Triggering Events

MOSAIC CO filed an 8-K with the SEC. Item 2.04: Triggering Events. Filing excerpt: 8-K 1 a8-kxredemptionmakewhole8xk.htm 8-K Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 28, 2026 THE MOSAIC COMPANY (Exact name of registrant as specified in its charter) DE 001-32327 20-1026454 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 101 East Kennedy Blvd. 33602…

Filing: 8-K (Material Event) Item 2.04: Triggering Events

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-17

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-17

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-14

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-10

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-04

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-06-15

MOS filed 8-K — material company event

MOSAIC CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for The Mosaic Company.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-05

MOS filed Quarterly Report (10-Q)

MOSAIC CO filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify The Mosaic Company's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on MOS. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — MOS SEC Filings

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MOS Full Analysis

Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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