The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Gold Mitchell since 2005.
This trader's CIK number is 1242882.
At the time of last reporting, Gold Mitchell was the Executive Chairman and CEO of Alpine Immune Sciences, Inc.. (stock ticker symbol ALPN).
Also see all insider trading activities at Alpine Immune Sciences, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2011 | DNDN | 0 | $0 | 114,000 | $4,255,962 | 68,643 | $330,135 |
| 2010 | DNDN | 0 | $0 | 554,887 | $28,878,912 | 270,625 | $1,806,692 |
| 2009 | DNDN | 0 | $0 | 600,000 | $14,952,000 | 542,928 | $3,374,840 |
| 2007 | DNDN | 0 | $0 | 202,090 | $2,719,929 | 151,157 | $612,790 |
| 2005 | DNDN | 4,000 | $22,540 | 0 | $0 | 0 | $0 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2024 | ALPN | 0 | $0 | 0 | $0 | 13,245 | $99,999 |
| 2023 | ALPN | 0 | $0 | 213,302 | $3,966,868 | 178,356 | $559,849 |
| 2021 | ALPN | 0 | $0 | 535,514 | $5,365,024 | 0 | $0 |
| 2019 | ALPN | 190,875 | $1,024,998 | 0 | $0 | 0 | $0 |
2. Alpine Immune Sciences, Inc. (ALPN)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2011-07-25 | DNDN | Option Ex | 3,881 | 4.90 | 19,016 |
| 2011-07-25 | DNDN | Sale | 19,000 | 38.37 | 728,973 |
| 2011-06-27 | DNDN | Option Ex | 3,881 | 4.90 | 19,016 |
| 2011-06-27 | DNDN | Sale | 19,000 | 38.69 | 735,167 |
| 2011-05-25 | DNDN | Option Ex | 3,881 | 4.90 | 19,016 |
| 2011-05-25 | DNDN | Sale | 19,000 | 40.00 | 759,943 |
| 2011-04-25 | DNDN | Option Ex | 19,000 | 4.90 | 93,100 |
| 2011-04-25 | DNDN | Sale | 19,000 | 40.71 | 773,452 |
| 2011-03-25 | DNDN | Sale | 19,000 | 33.21 | 630,914 |
| 2011-03-25 | DNDN | Option Ex | 19,000 | 4.90 | 93,100 |
| 2011-03-03 | DNDN | Option Ex | 19,000 | 4.57 | 86,887 |
| 2011-03-03 | DNDN | Sale | 19,000 | 33.03 | 627,513 |
| 2010-04-29 | DNDN | Option Ex | 270,625 | 6.68 | 1,806,692 |
| 2010-04-30 | DNDN | Sale | 154,887 | 54.71 | 8,473,712 |
| 2010-04-29 | DNDN | Sale | 400,000 | 51.01 | 20,405,200 |
| 2009-04-29 | DNDN | Option Ex | 542,928 | 6.22 | 3,374,840 |
| 2009-04-29 | DNDN | Sale | 600,000 | 24.92 | 14,952,000 |
| 2007-04-02 | DNDN | Sale | 202,090 | 13.46 | 2,719,929 |
| 2007-04-02 | DNDN | Option Ex | 151,157 | 4.05 | 612,790 |
| 2005-03-18 | DNDN | Buy | 4,000 | 5.63 | 22,540 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2024-05-08 | ALPN | Option Ex | 13,245 | 7.55 | 99,999 |
| 2023-12-28 | ALPN | Option Ex | 75,457 | 6.70 | 505,184 |
| 2023-12-28 | ALPN | Sale | 1,016 | 20.04 | 20,361 |
| 2023-12-22 | ALPN | Sale | 37,825 | 20.43 | 772,613 |
| 2023-12-26 | ALPN | Sale | 24,486 | 20.23 | 495,229 |
| 2023-12-27 | ALPN | Sale | 29,573 | 20.04 | 592,731 |
| 2023-12-22 | ALPN | Option Ex | 37,825 | .45 | 17,021 |
| 2023-12-26 | ALPN | Option Ex | 24,486 | .55 | 13,467 |
| 2023-12-27 | ALPN | Option Ex | 29,573 | .65 | 19,222 |
| 2023-12-19 | ALPN | Option Ex | 2,402 | .45 | 1,080 |
| 2023-12-19 | ALPN | Sale | 2,402 | 20.01 | 48,064 |
| 2023-12-12 | ALPN | Sale | 41,063 | 17.32 | 711,046 |
| 2023-12-11 | ALPN | Sale | 68,870 | 17.27 | 1,189,040 |
| 2023-12-12 | ALPN | Option Ex | 8,613 | .45 | 3,875 |
| 2023-12-08 | ALPN | Sale | 8,067 | 17.08 | 137,784 |
| 2021-09-17 | ALPN | Sale | 445,262 | 9.70 | 4,320,822 |
| 2021-09-16 | ALPN | Sale | 6,768 | 10.00 | 67,693 |
| 2021-09-15 | ALPN | Sale | 3,484 | 10.00 | 34,840 |
| 2021-05-13 | ALPN | Sale | 10,000 | 11.52 | 115,170 |
| 2021-05-12 | ALPN | Sale | 10,000 | 11.68 | 116,840 |
| 2021-04-13 | ALPN | Sale | 10,000 | 10.07 | 100,710 |
| 2021-04-14 | ALPN | Sale | 10,000 | 10.52 | 105,200 |
| 2021-03-04 | ALPN | Sale | 10,000 | 13.01 | 130,109 |
| 2021-03-05 | ALPN | Sale | 10,000 | 12.99 | 129,880 |
| 2021-02-01 | ALPN | Sale | 10,000 | 12.64 | 126,380 |
| 2021-02-02 | ALPN | Sale | 10,000 | 11.74 | 117,380 |
| 2019-01-18 | ALPN | Buy | 190,875 | 5.37 | 1,024,998 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Gold Mitchell (Executive Chairman and CEO of Alpine Immune Sciences, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.