SEC Insider Transactions from Lu Hongbo.

Last updated: 2026-04-02 23:06 UTC | Total transactions: 26

Lu Hongbo, a director at Zenas BioPharma, Inc. ($ZBIO), made two open market purchases of common shares in the last 365 days, totaling about $5.6 million. His most recent buy was on February 11, 2026. These purchases rank 154th among nearly 5,000 individual insiders, surpassing the average buy amount of $1.5 million and close to the typical 3.3 transactions. Lu Hongbo reported no open market sales during 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
March 31, 2026 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 3768 $18.63 426,736.0000 44,730,052 0.89% 0.01%
March 31, 2026 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 75000 $20.00 422,968.0000 44,730,052 21.55% 0.17%
Feb. 11, 2026 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 25985 $22.50 347,968.0000 42,159,340 8.07% 0.06%
Dec. 16, 2025 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director A Common Stock 7819 $0.00 54,982.0000 133,758,000 16.58% 0.01%
Sept. 13, 2024 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 58823 $17.00 58,823.0000 1,567,269 9999.99% 3.75%
Oct. 7, 2025 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 263160 $19.00 321,983.0000 42,159,340 447.38% 0.62%
June 11, 2025 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Not found A Stock Option (Right to Buy) 45000 $0.00 45,000.0000 79,507,474 9999.99% 0.06%
June 10, 2025 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director A Stock Option (Right to Buy) 18500 $0.00 18,500.0000 41,800,802 9999.99% 0.04%
Feb. 1, 2025 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Not found A Stock Option (Right to Buy) 10657 $0.00 10,657.0000 79,507,474 9999.99% 0.01%
Dec. 18, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director A Common Stock 16733 $22.99 47,163.0000 119,784,000 54.99% 0.01%
March 22, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 400 $28.00 39,730.0000 106,750,000 1.02% 0.00%
March 26, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 850 $27.50 40,580.0000 106,750,000 2.14% 0.00%
April 2, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 150 $27.34 40,730.0000 106,750,000 0.37% 0.00%
April 10, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 500 $25.00 41,230.0000 106,750,000 1.23% 0.00%
April 18, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 500 $22.00 41,730.0000 106,750,000 1.21% 0.00%
Sept. 25, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director G Common Stock 5650 $0.00 36,080.0000 124,199,000 13.54% 0.00%
Sept. 12, 2024 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Director P Common Stock 285714 $10.50 476,190.0000 71,259,239 150.00% 0.40%
Sept. 12, 2024 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Director P Common Stock 190476 $10.50 190,476.0000 71,259,239 9999.99% 0.27%
Sept. 13, 2024 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director P Common Stock 58823 $17.00 58,823.0000 1,567,269 9999.99% 3.75%
Sept. 12, 2024 Zenas BioPharma, Inc. $ZBIO Lu Hongbo Director A Stock Option (Right to Buy) 37000 $0.00 37,000.0000 1,567,269 9999.99% 2.36%
July 1, 2024 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Not found A Stock Option (Right to Buy) 4676 $0.00 4,676.0000 71,259,239 9999.99% 0.01%
June 10, 2024 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Not found A Stock Option (Right to Buy) 32000 $0.00 32,000.0000 71,259,239 9999.99% 0.04%
March 20, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 1000 $27.50 33,680.0000 106,750,000 3.06% 0.00%
March 19, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 1000 $28.00 32,680.0000 106,750,000 3.16% 0.00%
March 18, 2024 ARROWHEAD PHARMACEUTICALS, INC. $ARWR Lu Hongbo Director P Common Stock 1000 $27.49 31,680.0000 106,750,000 3.26% 0.00%
June 12, 2023 Terns Pharmaceuticals, Inc. $TERN Lu Hongbo Not found A Stock Option (Right to Buy) 32000 $0.00 32,000.0000 0 9999.99% 0.00%