Harold E. Selick serves as Executive at THRESHOLD PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Harold E. Selick has executed 42 insider transactions totaling $558.7K, demonstrating a bullish approach to their equity position. Their most recent transaction on Jan 9, 2026 involved exercising options for 14,299 shares valued at $0.
Harold E. Selick currently holds 60,845 shares of THRESHOLD PHARMACEUTICALS INC (THLD), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Harold E. Selick has been a net buyer of THLD stock. They have purchased $558.7K and sold $0 worth of shares.
Harold E. Selick's most recent insider trade was on Jan 9, 2026, when they sold 14,299 shares at $0.00 per share.
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| 14,299 |
| $4.21 |
| Discretionary |
| Jan 2, 2026 | PTGX | $0 | Award | 3,762 | $N/A | Discretionary |
| Jan 2, 2026 | PTGX | $0 | Award | 2,695 | $N/A | Discretionary |
| Mar 7, 2024 | PTGX | $12.3K | Option Exercise | 6,490 | $1.89 | Discretionary |
| Apr 10, 2023 | PTGX | $5.4K | Option Exercise | 6,196 | $0.87 | Discretionary |
| Mar 12, 2020 | PTGX | $80.4K | Purchase | 12,000 | $6.70 | Discretionary |
| Apr 1, 2019 | PTGX | $4.3K | Option Exercise | 3,310 | $1.31 | Discretionary |
| Jun 8, 2018 | PDLI | $150.0K | Award | 54,348 | $2.76 | Discretionary |
| Jun 9, 2017 | PDLI | $150.0K | Award | 60,729 | $2.47 | Discretionary |
| Jun 2, 2016 | PDLI | $250.0K | Award | 71,023 | $3.52 | Discretionary |
| Aug 20, 2015 | CBIO | $0 | Other | 382 | $N/A | Discretionary |
| Aug 20, 2015 | CBIO | $0 | Other | 16,232 | $N/A | Discretionary |
| May 28, 2015 | PDLI | $150.0K | Award | 22,059 | $6.80 | Discretionary |
| Nov 26, 2014 | PDLI | $17.0K | Purchase | 2,110 | $8.08 | Discretionary |
| Nov 26, 2014 | PDLI | $2.4K | Purchase | 300 | $8.08 | Discretionary |
| Nov 26, 2014 | PDLI | $808 | Purchase | 100 | $8.08 | Discretionary |
| Nov 26, 2014 | PDLI | $808 | Purchase | 100 | $8.08 | Discretionary |
| Nov 26, 2014 | PDLI | $11.2K | Purchase | 1,390 | $8.09 | Discretionary |
| Nov 26, 2014 | PDLI | $16.2K | Purchase | 2,000 | $8.08 | Discretionary |
| Oct 2, 2014 | THLD | $42.9K | Exercise | 20,942 | $2.05 | Discretionary |
| May 28, 2014 | PDLI | $50.0K | Award | 5,371 | $9.31 | Discretionary |
| Jun 17, 2013 | THLD | $36.5K | Exercise | 19,607 | $1.86 | Discretionary |
| May 21, 2013 | PDLI | $50.0K | Award | 5,974 | $8.37 | Discretionary |
| Jun 5, 2012 | PDLI | $50.0K | Award | 7,924 | $6.31 | Discretionary |
| Aug 9, 2011 | THLD | $0 | Gift | 18,000 | $N/A | Discretionary |
| Aug 9, 2011 | THLD | $0 | Gift | 36,000 | $N/A | Discretionary |
| Jun 22, 2011 | PDLI | $50.0K | Award | 8,489 | $5.89 | Discretionary |
| Mar 11, 2011 | THLD | $100.0K | Purchase | 47,619 | $2.10 | Discretionary |
| Jun 9, 2010 | PDLI | $50.0K | Award | 9,900 | $5.05 | Discretionary |