SEC Insider Transactions from Lee Jennifer Kayden.

Last updated: 2026-03-16 13:03 UTC | Total transactions: 90

Lee Jennifer Kayden has filed 90 insider transactions across 1 company since February 2023.

Most recent transaction: a grant/award of 32500 shares of RHYTHM PHARMACEUTICALS, INC. ($RYTM) on February 11, 2026.

Activity breakdown: 0 open-market purchases and 35 sales.

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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. 11, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Stock Options (Right to Buy) 32500 $0.00 32,500.0000 64,984,361 9999.99% 0.05%
Feb. 11, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Restricted Stock Units 21650 $0.00 21,650.0000 64,984,361 9999.99% 0.03%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America F Common Stock 9237 $108.99 19,233.0000 64,984,361 32.44% 0.01%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 22612 $0.00 28,470.0000 64,984,361 386.00% 0.03%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 9163 $0.00 27,487.0000 64,984,361 25.00% 0.01%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 4512 $0.00 4,512.0000 64,984,361 50.00% 0.01%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 5500 $0.00 11,000.0000 64,984,361 33.33% 0.01%
Feb. 1, 2026 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 3437 $0.00 0.0000 64,984,361 100.00% 0.01%
Feb. 16, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 5500 $0.00 16,500.0000 60,995,204 25.00% 0.01%
Feb. 14, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Restricted Stock Units 36650 $0.00 36,650.0000 60,995,204 9999.99% 0.06%
Feb. 19, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 2035 $57.22 5,858.0000 60,995,204 25.78% 0.00%
Feb. 16, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 5500 $0.00 7,893.0000 60,995,204 229.84% 0.01%
Feb. 14, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Stock Options (Right to Buy) 55000 $0.00 55,000.0000 60,995,204 9999.99% 0.09%
Feb. 12, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 10 $56.41 4,803.0000 60,995,204 0.21% 0.00%
Feb. 12, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1205 $56.39 3,598.0000 60,995,204 25.09% 0.00%
Feb. 13, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1205 $58.00 2,393.0000 60,995,204 33.49% 0.00%
Feb. 12, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 600 $56.39 4,813.0000 60,995,204 11.08% 0.00%
Feb. 9, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 4189 $0.00 21,601.0000 60,995,204 16.24% 0.01%
Feb. 11, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 2031 $0.00 0.0000 60,995,204 100.00% 0.00%
Feb. 11, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 4 $57.50 5,413.0000 60,995,204 0.07% 0.00%
Feb. 11, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1023 $57.51 5,417.0000 60,995,204 15.89% 0.00%
Feb. 11, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 2031 $0.00 6,440.0000 60,995,204 46.06% 0.00%
Feb. 10, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 2295 $59.34 4,409.0000 60,995,204 34.23% 0.00%
Feb. 10, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1894 $58.39 6,704.0000 60,995,204 22.03% 0.00%
Feb. 9, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 3437 $0.00 4,409.0000 60,995,204 353.60% 0.01%
Feb. 9, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 4189 $6.80 8,598.0000 60,995,204 95.01% 0.01%
Feb. 9, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 3437 $0.00 3,437.0000 60,995,204 50.00% 0.01%
Feb. 5, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 200 $61.95 972.0000 60,995,204 17.06% 0.00%
Feb. 5, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1133 $61.01 1,172.0000 60,995,204 49.15% 0.00%
Feb. 5, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1733 $60.08 2,305.0000 60,995,204 42.92% 0.00%
Feb. 1, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 4513 $0.00 9,024.0000 60,995,204 33.34% 0.01%
Feb. 4, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1447 $59.43 4,038.0000 60,995,204 26.38% 0.00%
Feb. 1, 2025 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 4513 $0.00 5,485.0000 60,995,204 464.30% 0.01%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 28717 $0.00 71,283.0000 61,219,918 28.72% 0.05%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 11642 $0.00 37,108.0000 61,219,918 23.88% 0.02%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 11642 $30.66 67,833.0000 61,219,918 20.72% 0.02%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 38051 $65.68 29,782.0000 61,219,918 56.10% 0.06%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 17540 $66.95 12,242.0000 61,219,918 58.89% 0.03%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 11070 $67.56 1,172.0000 61,219,918 90.43% 0.02%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 200 $68.43 972.0000 61,219,918 17.06% 0.00%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 20622 $0.00 25,790.0000 61,219,918 44.43% 0.03%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 20622 $6.80 27,474.0000 61,219,918 300.96% 0.03%
Nov. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 28717 $24.29 56,191.0000 61,219,918 104.52% 0.05%
March 20, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 9066 $39.33 6,852.0000 57,673,128 56.95% 0.02%
March 20, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 9169 $38.22 15,918.0000 57,673,128 36.55% 0.02%
March 19, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 15515 $39.22 25,087.0000 57,673,128 38.21% 0.03%
Feb. 16, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Common Stock 33750 $0.00 40,602.0000 57,673,128 492.56% 0.06%
Feb. 16, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Stock Option (Right to Buy) 67000 $0.00 67,000.0000 57,673,128 9999.99% 0.12%
Feb. 16, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America A Restricted Stock Units 22000 $0.00 22,000.0000 57,673,128 9999.99% 0.04%
Feb. 9, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 3438 $0.00 6,874.0000 57,673,128 33.34% 0.01%
Feb. 9, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 3438 $0.00 6,459.0000 57,673,128 113.80% 0.01%
Feb. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 2031 $0.00 8,490.0000 57,673,128 31.44% 0.00%
Feb. 12, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1023 $51.38 7,467.0000 57,673,128 12.05% 0.00%
Feb. 13, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 615 $49.83 6,852.0000 57,673,128 8.24% 0.00%
Feb. 11, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 2031 $0.00 2,031.0000 57,673,128 50.00% 0.00%
Feb. 1, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Restricted Stock Units 4513 $0.00 13,537.0000 57,673,128 25.00% 0.01%
Feb. 1, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 4513 $0.00 4,513.0000 57,673,128 9999.99% 0.01%
Feb. 1, 2024 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1492 $45.06 3,021.0000 57,673,128 33.06% 0.00%
Nov. 14, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 13677 $32.01 0.0000 57,874,960 100.00% 0.02%
Nov. 14, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 12030 $6.80 13,677.0000 57,874,960 730.42% 0.02%
Nov. 14, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 12030 $0.00 46,412.0000 57,874,960 20.58% 0.02%
Nov. 8, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 3479 $28.64 3,880.0000 57,874,960 47.28% 0.01%
Nov. 8, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 5712 $6.80 7,359.0000 57,874,960 346.81% 0.01%
Nov. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 3438 $6.80 5,085.0000 57,874,960 208.74% 0.01%
Nov. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1719 $27.37 3,366.0000 57,874,960 33.81% 0.00%
Nov. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1719 $28.00 1,647.0000 57,874,960 51.07% 0.00%
Nov. 8, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 5712 $0.00 61,880.0000 57,874,960 8.45% 0.01%
Nov. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 3438 $0.00 58,442.0000 57,874,960 5.56% 0.01%
Nov. 8, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 2233 $29.31 1,647.0000 57,874,960 57.55% 0.00%
Nov. 3, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 80 $0.00 67,592.0000 57,874,960 0.12% 0.00%
Nov. 3, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 80 $28.00 1,647.0000 57,874,960 4.63% 0.00%
Nov. 3, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 80 $6.80 1,727.0000 57,874,960 4.86% 0.00%
Sept. 5, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 4519 $6.80 7,813.0000 56,867,662 137.19% 0.01%
Sept. 5, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 6166 $28.05 1,647.0000 56,867,662 78.92% 0.01%
Sept. 5, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 4519 $0.00 67,672.0000 56,867,662 6.26% 0.01%
Aug. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 1718 $0.00 72,191.0000 56,867,662 2.32% 0.00%
Aug. 7, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 8591 $6.80 14,517.0000 56,867,662 144.97% 0.02%
Aug. 7, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 11223 $24.18 3,294.0000 56,867,662 77.31% 0.02%
Aug. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Common Stock 1718 $6.80 5,012.0000 56,867,662 52.16% 0.00%
Aug. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America S Common Stock 1718 $24.66 3,294.0000 56,867,662 34.28% 0.00%
Aug. 7, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Lee Jennifer Kayden EVP, Head of North America M Stock Option (Right to Buy) 8591 $0.00 73,909.0000 56,867,662 10.41% 0.02%
Feb. 11, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America M Common Stock 2031 $0.00 5,575.0000 52,120,701 57.31% 0.00%
Feb. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America S Common Stock 1204 $27.51 3,544.0000 52,120,701 25.36% 0.00%
Feb. 11, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America M Restricted Stock Units 2031 $0.00 4,062.0000 52,120,701 33.33% 0.00%
Feb. 14, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America S Common Stock 635 $26.87 4,940.0000 52,120,701 11.39% 0.00%
Feb. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America M Restricted Stock Units 3438 $0.00 10,312.0000 52,120,701 25.00% 0.01%
Feb. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America M Common Stock 3438 $0.00 4,748.0000 52,120,701 262.44% 0.01%
Feb. 9, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America S Common Stock 1192 $27.66 3,556.0000 52,120,701 25.11% 0.00%
Feb. 1, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America A Restricted Stock Units 18050 $0.00 18,050.0000 52,120,701 9999.99% 0.03%
Feb. 1, 2023 RHYTHM PHARMACEUTICALS, INC. $RYTM Chien Jennifer EVP, Head of North America A Stock Option (Right to Buy) 46900 $0.00 46,900.0000 52,120,701 9999.99% 0.09%