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.
| 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% |