William H. Chang serves as Executive at Semler Scientific, Inc., where they oversee executive responsibilities. Since joining the company, William H. Chang has executed 35 insider transactions totaling $3.2M, demonstrating a bullish approach to their equity position. Their most recent transaction on Jan 2, 2026 involved receiving (via award) 4,000 shares valued at $0.
William H. Chang currently holds 4,000 shares of Semler Scientific, Inc. (SMLR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William H. Chang has been a net buyer of SMLR stock. They have purchased $1.8M and sold $1.4M worth of shares.
William H. Chang's most recent insider trade was on Jan 2, 2026, when they sold 4,000 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| May 10, 2024 | SMLR | $0 | Award | 2,182 | $N/A | Discretionary |
| Jun 30, 2021 | ENSC | $0 | Award | 2,242,189 | $N/A | Discretionary |
| Jun 30, 2021 | ENSC | $0 | Award | 353,451 | $N/A | Discretionary |
| Jun 4, 2021 | SMLR | $30.8K | Sale | 280 | $110.00 | Discretionary |
| Jun 3, 2021 | SMLR | $301.4K | Sale | 2,720 | $110.82 | Discretionary |
| Jun 2, 2021 | SMLR | $103.1K | Sale | 937 | $110.00 | Discretionary |
| Jan 23, 2020 | SMLR | $50.0K | Sale | 1,000 | $50.00 | Discretionary |
| Jan 22, 2020 | SMLR | $272.8K | Sale | 5,451 | $50.04 | Discretionary |
| Jan 21, 2020 | SMLR | $319.2K | Sale | 6,360 | $50.19 | Discretionary |
| Jan 17, 2020 | SMLR | $300.0K | Sale | 6,000 | $50.00 | Discretionary |
| Oct 1, 2018 | SMLR | $350.0K | Exercise | 134,616 | $2.60 | Discretionary |
| Apr 20, 2018 | SMLR | $200.0K | Purchase | 23,975 | $8.34 | Discretionary |
| Apr 20, 2018 | SMLR | $200.0K | Purchase | 23,975 | $8.34 | Discretionary |
| Apr 20, 2018 | SMLR | $200.0K | Purchase | 23,975 | $8.34 | Discretionary |
| Dec 7, 2017 | SMLR | $200.0K | Exercise | 114,286 | $1.75 | Discretionary |
| Dec 7, 2017 | SMLR | $200.0K | Exercise | 114,286 | $1.75 | Discretionary |
| Jul 15, 2015 | SMLR | $100.0K | Purchase | 33,333 | $3.00 | Discretionary |
| Mar 2, 2015 | SMLR | $256.3K | Purchase | 62,500 | $4.10 | Discretionary |
| Feb 24, 2015 | SMLR | $248.6K | Purchase | 55,000 | $4.52 | Discretionary |
| Feb 26, 2014 | SMLR | $416.3K | Option Exercise | 92,501 | $4.50 | Discretionary |
| Feb 26, 2014 | SMLR | $375.0K | Option Exercise | 83,334 | $4.50 | Discretionary |
| Feb 26, 2014 | SMLR | $175.0K | Option Exercise | 38,889 | $4.50 | Discretionary |
| Feb 26, 2014 | SMLR | $0 | Conversion | 41,667 | $N/A | Discretionary |
| Feb 26, 2014 | SMLR | $0 | Conversion | 64,583 | $N/A | Discretionary |
| Feb 26, 2014 | SMLR | $0 | Conversion | 417,781 | $N/A | Discretionary |
| Feb 26, 2014 | SMLR | $2.0M | Payment | 286,460 | $7.00 | Discretionary |
| Feb 26, 2014 | SMLR | $193.7K | Option Exercise | 48,437 | $4.00 | Discretionary |
| Feb 26, 2014 | SMLR | $83.4K | Option Exercise | 20,844 | $4.00 | Discretionary |