Mosaic MOS Insider Ownership

Updated Oct 10, 2026

Across the past 12 months, open-market trades by Mosaic insiders totaled $17,488 in purchases (685 shares) and $508,760 in sales (23K shares).

• Among MOS insiders, Jody Lynne Kuzenko (Director) bought the most stock on the open market in the past 12 months: $17,488 (685 shares), most recently on November 11, 2025.
• On the selling side, Walter F. Precourt III (SVP & Chief Administrative Officer) was the top open-market seller of Mosaic over the past 12 months, with $508,760 sold (23K shares) and the latest sale on August 19, 2026.
• Apart from open-market trades, MOS insiders received 65 shares in stock awards, acquired 81.96K shares through option exercises and conversions and gave up 33.21K shares to cover taxes or exercise prices in the past 12 months.
• Business Quant data puts insider holdings in MOS at 814.78K shares across insiders' latest Form 4 filings, down 2.74% from 837.71K shares at the end of Q2 2026.
• Indirect holdings, through trusts, partnerships, family members and other entities, make up 1.23% (10K shares) of Mosaic's insider total, with the other 98.77% (804.78K shares) held directly.
• MOS's insider total is spread across 18 insiders who have filed a Form 4 in the past two years.
• MOS's largest insider holders by reported holdings are Karen A. Swager (EVP & Operations, 175.6K shares), Walter F. Precourt III (SVP & Chief Administrative Officer, 116.2K shares) and Emery N. Koenig (Director, 86.23K shares).
• Karen A. Swager holds 21.55% of the combined insider position in Mosaic.
• Institutions held 95.25% of Mosaic's outstanding shares in their Q2 2026 13F filings, insiders about 0.26% based on their latest Form 4 filings, and other investors, including the public, the remaining 4.49%.
• In the past year, 18 insiders of Mosaic submitted 27 Form 4 filings reporting trades, awards or other transactions.
• The insider data for MOS reflects Form 4 filings through October 2, 2026.