SEC Insider Transactions from Mason Mark.

Last updated: 2026-03-14 11:52 UTC | Total transactions: 19

Mason Mark, CFO of Citigroup Inc. ($C), made two open market sales of company shares in the last 365 days, totaling $416 thousand. His most recent sale was on February 20, 2026. These transactions rank 6,858th out of 11,678 insiders by sale value, well below the average of $8.6 million across 6.4 sales per insider. He recorded no open market purchases in this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Feb. 20, 2026 CITIGROUP INC $C Mason Mark Chief Financial Officer A Performance Share Units 39347 $0.00 39,347.4800 3,099,753,000 9999.99% 0.00%
Feb. 20, 2026 CITIGROUP INC $C Mason Mark Chief Financial Officer S Common Stock 2000 $114.96 234,137.8590 3,099,753,000 0.85% 0.00%
Feb. 20, 2026 CITIGROUP INC $C Mason Mark Chief Financial Officer S Common Stock 1627 $114.40 236,137.8590 3,099,753,000 0.68% 0.00%
Feb. 11, 2026 CITIGROUP INC $C Mason Mark Chief Financial Officer A Common Stock 52367 $0.00 237,764.8590 3,099,753,000 28.25% 0.00%
Jan. 30, 2026 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 145 $0.00 1,675.0000 7,463,000,000 9.48% 0.00%
Jan. 20, 2026 CITIGROUP INC $C Mason Mark Chief Financial Officer F Common Stock 29210 $118.04 185,397.4410 3,099,753,000 13.61% 0.00%
Dec. 4, 2025 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 130 $0.00 1,530.0000 7,466,000,000 9.29% 0.00%
Sept. 10, 2025 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 125 $0.00 1,400.0000 7,465,000,000 9.80% 0.00%
June 10, 2025 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 132 $0.00 1,275.0000 7,469,000,000 11.55% 0.00%
Feb. 21, 2025 CITIGROUP INC $C Mason Mark Chief Financial Officer A Performance Share Unit 34761 $0.00 34,760.9000 3,099,719,000 9999.99% 0.00%
Feb. 14, 2025 CITIGROUP INC $C Mason Mark Chief Financial Officer G Common Stock 3073 $0.00 214,598.0540 3,099,719,000 1.41% 0.00%
Feb. 14, 2025 CITIGROUP INC $C Mason Mark Chief Financial Officer S Common Stock 58465 $83.21 217,671.0540 3,099,719,000 21.17% 0.00%
Feb. 13, 2025 CITIGROUP INC $C Mason Mark Chief Financial Officer A Common Stock 51872 $0.00 276,136.0540 3,099,719,000 23.13% 0.00%
Jan. 31, 2025 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 151 $0.00 1,143.0000 7,469,000,000 15.22% 0.00%
Jan. 20, 2025 CITIGROUP INC $C Mason Mark Chief Financial Officer F Common Stock 28711 $79.99 224,264.6450 3,099,719,000 11.35% 0.00%
Dec. 9, 2024 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 132 $0.00 992.0000 7,470,000,000 15.35% 0.00%
Sept. 6, 2024 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 146 $0.00 860.0000 7,469,000,000 20.45% 0.00%
June 7, 2024 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 138 $0.00 714.0000 7,472,000,000 23.96% 0.00%
Jan. 31, 2024 MICROSOFT CORP $MSFT Mason Mark Director A Common Stock 147 $0.00 576.0000 7,472,000,000 34.27% 0.00%