SEC Insider Transactions from Kjellson Nina S.

Last updated: 2026-03-14 09:49 UTC | Total transactions: 27

Kjellson Nina S has filed 27 insider transactions across 1 company since May 2024.

Most recent transaction: a sale of 1890 shares of Tyra Biosciences, Inc. ($TYRA) on February 05, 2025.

Activity breakdown: 0 open-market purchases and 26 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. 5, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 1890 $13.76 4,144,590.0000 57,217,746 0.05% 0.00%
Feb. 5, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 3511 $13.76 4,144,590.0000 57,217,746 0.08% 0.01%
Jan. 23, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 4825 $16.26 4,149,991.0000 57,217,746 0.12% 0.01%
Jan. 16, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 6944 $16.29 7,879,037.0000 57,217,746 0.09% 0.01%
Jan. 16, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 835 $16.29 7,866,690.0000 57,217,746 0.01% 0.00%
Jan. 17, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 12808 $16.40 7,866,229.0000 57,217,746 0.16% 0.02%
Jan. 17, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 461 $16.40 7,866,229.0000 57,217,746 0.01% 0.00%
Jan. 21, 2025 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 3993 $16.36 7,866,229.0000 57,217,746 0.05% 0.01%
Nov. 25, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 4706 $16.84 4,179,857.0000 58,874,497 0.11% 0.01%
Nov. 25, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 566 $16.84 4,179,857.0000 58,874,497 0.01% 0.00%
Nov. 6, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 46856 $17.18 4,204,849.0000 58,874,497 1.10% 0.08%
Nov. 6, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 5635 $17.18 4,187,500.0000 58,874,497 0.13% 0.01%
Nov. 7, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 19720 $17.32 4,185,129.0000 58,874,497 0.47% 0.03%
Nov. 7, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 2371 $17.32 4,185,129.0000 58,874,497 0.06% 0.00%
Nov. 4, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 960 $17.01 4,269,078.0000 58,874,497 0.02% 0.00%
Nov. 4, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 116 $17.01 4,260,837.0000 58,874,497 0.00% 0.00%
Nov. 5, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 9367 $16.77 4,259,711.0000 58,874,497 0.22% 0.02%
Nov. 5, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 1126 $16.77 4,259,711.0000 58,874,497 0.03% 0.00%
Oct. 30, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 9889 $16.17 4,385,212.0000 58,874,497 0.23% 0.02%
Oct. 30, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 1189 $16.17 4,285,585.0000 58,874,497 0.03% 0.00%
Oct. 31, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 89390 $16.46 4,295,822.0000 58,874,497 2.04% 0.15%
Oct. 31, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 10750 $16.46 4,274,835.0000 58,874,497 0.25% 0.02%
Nov. 1, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 23938 $16.54 4,271,884.0000 58,874,497 0.56% 0.04%
Nov. 1, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Commmon Stock 604 $17.16 3,812,774.0000 58,874,497 0.02% 0.00%
Nov. 1, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 2878 $16.54 4,271,957.0000 58,874,497 0.07% 0.00%
Nov. 1, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found S Common Stock 73 $17.16 4,271,884.0000 58,874,497 0.00% 0.00%
May 29, 2024 Tyra Biosciences, Inc. $TYRA Kjellson Nina S Not found A Stock Option (Right to Buy) 18600 $0.00 18,600.0000 42,704,876 9999.99% 0.04%