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Public ownership evidence

The Mosaic Company (MOS) Ownership Disclosures

Read MOS insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-11-042026-11-02Martus Christopher EdwardA7,882Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-02 and its public availability date is 2026-11-04. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001285785-26-000149 ↗SEC 0001285785-26-000131 ↗SEC 0001285785-26-000116 ↗

Recent Form 4 activity

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2026-11-042026-11-02Martus Christopher EdwardA7,882Not reported
2026-10-022026-09-23Little Sonya CA65Not reported
2026-08-222026-08-19Precourt Walter F. IIIS23,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-2923$487None
Cornerstone Financial Management LLC2026-03-312026-08-2941$1,046None
Cornerstone Financial Management LLC2025-12-312026-08-2941$988None
Advisors Asset Management, Inc.2021-12-312026-08-2855,421$2,177,491None
Advisors Asset Management, Inc.2022-12-312026-08-2856,759$2,490,017None
Advisors Asset Management, Inc.2020-06-302026-08-2828,218$353,007None
Advisors Asset Management, Inc.2022-06-302026-08-2863,647$3,006,000None
Advisors Asset Management, Inc.2021-09-302026-08-2849,121$1,755,000None
Corient Private Wealth LP2026-06-302026-08-2863,640$1,348,535None
Redwood Investment Management, LLC2025-03-312026-08-2869,593$1,880,000None
Principia Wealth Advisory, LLC2026-06-302026-08-2735$742None
Principia Wealth Advisory, LLC2026-03-312026-08-2718$459None
Advisors Asset Management, Inc.2024-03-312026-08-277,941$257,765None
Advisors Asset Management, Inc.2022-09-302026-08-2756,464$2,729,000None
Advisors Asset Management, Inc.2020-12-312026-08-2733,400$769,000None
Advisors Asset Management, Inc.2022-03-312026-08-2757,363$3,814,640None
Advisors Asset Management, Inc.2023-06-302026-08-2733,862$1,185,170None
Advisors Asset Management, Inc.2023-09-302026-08-2722,330$794,948None
Advisors Asset Management, Inc.2023-03-312026-08-2735,446$1,626,262None
Advisors Asset Management, Inc.2021-03-312026-08-2741,215$1,302,806None
Advisors Asset Management, Inc.2021-06-302026-08-2748,985$1,563,000None
Advisors Asset Management, Inc.2020-09-302026-08-2731,597$577,277None
Advisors Asset Management, Inc.2025-09-302026-08-274,993$173,157None
Advisors Asset Management, Inc.2023-12-312026-08-2720,197$721,639None
Redwood Investment Management, LLC2025-09-302026-08-2735,856$1,243,000None
Redwood Investment Management, LLC2025-12-312026-08-2730,116$725,000None
Advisors Asset Management, Inc.2019-12-312026-08-2631,810$688,368None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2666,550$1,697,025None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2645,150$956,729None
CYBER HORNET ETFs LLC2026-06-302026-08-25868$18,393None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25368,161$7,801,332None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-257,801,332$368,161,000None
Advisors Asset Management, Inc.2024-06-302026-08-227,218$208,600None
Advisors Asset Management, Inc.2025-12-312026-08-225,955$143,456None
Advisors Asset Management, Inc.2020-03-312026-08-2226,224$283,744None
WEST MICHIGAN ADVISORS, LLC2026-06-302026-08-2212,370$262,120None
Assenagon Asset Management S.A.2026-06-302026-08-22166,069$3,519,002None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20254,727$5,397,674None
Beacon Pointe Advisors, LLC2026-06-302026-08-1910,484$222,147None
Advisors Asset Management, Inc.2019-03-312026-08-1934,504$942,304None
Advisors Asset Management, Inc.2019-09-302026-08-1932,613$668,567None
Advisors Asset Management, Inc.2019-06-302026-08-1936,581$915,622None
Ensign Peak Advisors, Inc2026-03-312026-08-1924,511$625,031None
Ensign Peak Advisors, Inc2025-12-312026-08-1976,992$1,854,737None
Ensign Peak Advisors, Inc2025-09-302026-08-1981,936$2,841,540None
Fulcrum Asset Management LLP2026-06-302026-08-1920,555$461,254None
PIN OAK INVESTMENT ADVISORS INC2026-06-302026-08-19300$6,000None
Rakuten Investment Management, Inc.2026-06-302026-08-1933,699$756,205None
Caitlin John, LLC2026-06-302026-08-184,145$87,834None
Corient Private Wealth LP2026-06-302026-08-18475,000$478,633None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Redwood Investment Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.