SEC Insider Transactions from Paulson Richard A..

Last updated: 2026-03-14 11:54 UTC | Total transactions: 43

Paulson Richard A., President and CEO of Karyopharm Therapeutics Inc. ($KPTI), sold shares on the open market four times in the last year, totaling about $127,000. His most recent sale occurred on March 2, 2026. These sales rank 9,222nd among nearly 12,000 individual insiders, far below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases in the 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
March 2, 2026 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 12361 $9.41 267,030.0000 18,343,968 4.42% 0.07%
Feb. 5, 2026 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 81060 $0.00 279,391.0000 17,050,876,000 40.87% 0.00%
Oct. 15, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 114285 $0.00 198,331.0000 126,240,054 135.98% 0.09%
Sept. 15, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 1257 $6.43 84,046.0000 126,240,054 1.47% 0.00%
Sept. 12, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 2800 $0.00 85,303.0000 126,240,054 3.39% 0.00%
May 6, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 236 $7.12 82,503.0000 126,240,054 0.29% 0.00%
April 4, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 245 $3.74 82,739.0000 126,240,054 0.30% 0.00%
March 4, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 11694 $6.29 82,984.0000 126,240,054 12.35% 0.01%
Feb. 28, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 20000 $0.00 94,678.0000 126,240,054 26.78% 0.02%
Feb. 28, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Stock Option (right to buy) 40000 $0.00 40,000.0000 126,240,054 9999.99% 0.03%
Feb. 4, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 4099 $0.65 1,120,158.0000 0 0.36% 0.00%
Jan. 6, 2025 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 4055 $0.78 1,124,257.0000 0 0.36% 0.00%
Dec. 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3620 $0.81 1,128,312.0000 0 0.32% 0.00%
Nov. 5, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3675 $0.91 1,131,932.0000 0 0.32% 0.00%
Oct. 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3607 $0.88 1,135,607.0000 0 0.32% 0.00%
Sept. 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3667 $0.72 1,139,214.0000 0 0.32% 0.00%
Aug. 6, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3608 $0.93 1,142,881.0000 0 0.31% 0.00%
July 5, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3616 $0.85 1,146,489.0000 0 0.31% 0.00%
June 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3592 $0.99 1,150,105.0000 0 0.31% 0.00%
May 6, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3576 $1.13 1,153,697.0000 0 0.31% 0.00%
April 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3563 $1.29 1,157,273.0000 0 0.31% 0.00%
March 5, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3573 $1.30 1,160,836.0000 0 0.31% 0.00%
March 1, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common 19374 $1.20 1,164,409.0000 0 1.64% 0.00%
Feb. 29, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common 80470 $1.17 1,183,783.0000 0 6.37% 0.00%
Feb. 28, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 442800 $0.00 1,264,253.0000 0 53.90% 0.00%
Feb. 6, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 4012 $1.59 821,453.0000 0 0.49% 0.00%
Jan. 24, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 42000 $0.00 825,465.0000 0 5.36% 0.00%
Jan. 4, 2024 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 4114 $0.82 783,465.0000 0 0.52% 0.00%
Dec. 4, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3622 $0.79 787,579.0000 0 0.46% 0.00%
Nov. 6, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3606 $0.92 791,201.0000 0 0.45% 0.00%
Oct. 4, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3589 $1.27 794,807.0000 0 0.45% 0.00%
Sept. 5, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 64 $1.32 798,396.0000 0 0.01% 0.00%
Sept. 5, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3558 $1.33 798,460.0000 0 0.44% 0.00%
Aug. 7, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3722 $1.72 802,018.0000 0 0.46% 0.00%
July 5, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3538 $1.72 805,740.0000 0 0.44% 0.00%
June 5, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3536 $2.24 809,278.0000 0 0.44% 0.00%
May 4, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3805 $3.35 812,814.0000 0 0.47% 0.00%
April 4, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3497 $3.97 816,619.0000 0 0.43% 0.00%
March 6, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3506 $3.16 820,116.0000 0 0.43% 0.00%
Feb. 28, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO A Common Stock 252000 $0.00 856,655.0000 0 41.68% 0.00%
March 1, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 33033 $3.03 823,622.0000 0 3.86% 0.00%
Feb. 6, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3950 $3.40 604,655.0000 0 0.65% 0.00%
Jan. 4, 2023 Karyopharm Therapeutics Inc. $KPTI Paulson Richard A. President and CEO S Common Stock 3922 $3.27 608,605.0000 0 0.64% 0.00%