When did MOS join the S&P 500?

The Mosaic Company joined the S&P 500 index on 2011-09-23.

What sector is MOS in?

MOS is in the Materials sector, Fertilizers & Agricultural Chemicals industry.

MOS — The Mosaic Company

Name: MOS Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Fertilizers & Agricultural Chemicals · Materials

Key Facts

Status	Active
Sector	Materials
Industry	Fertilizers & Agricultural Chemicals
Joined	2011-09-23
Tenure	14 yrs

The Mosaic Company is engaged in the production and sale of concentrated phosphate and potash crop nutrients. It operates through the following segments: Phosphate, Potash, and Mosaic Fertilizers. The Phosphate segment involves the ownership and operation of mines and production facilities for concentrated phosphate crop nutrients and phosphate-based animal feed ingredients, along with processing plants for producing concentrated phosphate crop nutrients. The Potash segment includes mining, processing and selling potash. The Mosaic Fertilizers segment focuses on mines, chemical plants, crop nutrient mixing and bagging facilities, port terminals and warehouses.

Industry Peers

CF CTVA

Sector Peers

ALB AMCR APD AVY BALL CF CRH CTVA DD DOW

S&P 500 Timeline

2011-09-23Joined S&P 500

Institutional Holdings (13F)

7 institutions hold MOS, totaling 1.8M shares ($41M) · As of 2026Q1

Rank	Institution	Shares	Value
1	AEGIS FINANCIAL CORP	854K	$22M
2	FOUNDATION RESOURCE MANAGEMENT INC	684K	$17M
3	AUXIER ASSET MANAGEMENT LLC	66K	$2M
4	JOHN G ULLMAN & ASSOCIATES INC	16K	$401625
5	HRT FINANCIAL LP	129K	$3281
6	HUNTINGTON NATIONAL BANK	1	$67
7	HANTZ FINANCIAL SERVICES, INC.	2K	$58

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10