John L. Knopf serves as Executive at ACCELERON PHARMA INC, where they oversee executive responsibilities. Since joining the company, John L. Knopf has executed 94 insider transactions totaling $21.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 9, 2016 involved exercising options for 31,543 shares valued at $185.5K.
John L. Knopf currently holds 245,627 shares of ACCELERON PHARMA INC (XLRN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John L. Knopf has been a net seller of XLRN stock. They have purchased $0 and sold $21.0M worth of shares.
John L. Knopf's most recent insider trade was on Nov 9, 2016, when they sold 31,543 shares at $5.88 per share.
Get notified when new Form 4 filings are submitted
| 37,500 |
| $5.28 |
| Discretionary |
| Nov 9, 2016 | XLRN | $49.5K | Option Exercise | 9,375 | $5.28 | Discretionary |
| Nov 9, 2016 | XLRN | $84.4K | Option Exercise | 15,976 | $5.28 | Discretionary |
| Nov 9, 2016 | XLRN | $3.2M | Sale | 100,000 | $32.19 | Discretionary |
| Nov 9, 2016 | XLRN | $28.5K | Option Exercise | 5,606 | $5.08 | Discretionary |
| Jul 7, 2016 | XLRN | $171.0K | Option Exercise | 95,000 | $1.80 | Discretionary |
| Jul 6, 2016 | XLRN | $219.0K | Option Exercise | 41,477 | $5.28 | Discretionary |
| Jul 6, 2016 | XLRN | $1.0M | Sale | 31,040 | $33.58 | Discretionary |
| Jul 6, 2016 | XLRN | $357.6K | Sale | 10,437 | $34.26 | Discretionary |
| Jul 5, 2016 | XLRN | $161.0K | Option Exercise | 30,501 | $5.28 | Discretionary |
| Jul 5, 2016 | XLRN | $932.7K | Sale | 28,111 | $33.18 | Discretionary |
| Jul 5, 2016 | XLRN | $81.8K | Sale | 2,390 | $34.22 | Discretionary |
| Jul 1, 2016 | XLRN | $252.8K | Sale | 7,396 | $34.18 | Discretionary |
| Jul 1, 2016 | XLRN | $121.6K | Option Exercise | 23,022 | $5.28 | Discretionary |
| Jul 1, 2016 | XLRN | $720.3K | Sale | 20,626 | $34.92 | Discretionary |
| May 20, 2016 | XLRN | $855.4K | Sale | 25,787 | $33.17 | Discretionary |
| May 20, 2016 | XLRN | $131.0K | Option Exercise | 25,787 | $5.08 | Discretionary |
| May 19, 2016 | XLRN | $191.1K | Option Exercise | 37,623 | $5.08 | Discretionary |
| May 19, 2016 | XLRN | $1.2M | Sale | 37,623 | $33.04 | Discretionary |
| May 18, 2016 | XLRN | $122.4K | Option Exercise | 24,090 | $5.08 | Discretionary |
| May 18, 2016 | XLRN | $1.2M | Sale | 36,590 | $33.04 | Discretionary |
| Mar 3, 2016 | XLRN | $0 | Award | 17,500 | $N/A | Discretionary |
| Oct 7, 2015 | XLRN | $157.2K | Sale | 6,548 | $24.01 | Discretionary |
| Oct 7, 2015 | XLRN | $96.5K | Option Exercise | 19,000 | $5.08 | Discretionary |
| Oct 7, 2015 | XLRN | $306.1K | Sale | 12,452 | $24.58 | Discretionary |
| Sep 14, 2015 | XLRN | $3.4K | Option Exercise | 8,500 | $0.40 | Discretionary |
| Sep 9, 2015 | XLRN | $0 | Award | 89,000 | $N/A | Discretionary |
| Sep 8, 2015 | XLRN | $160.7K | Sale | 5,173 | $31.06 | Discretionary |
| Sep 8, 2015 | XLRN | $139.9K | Sale | 4,799 | $29.16 | Discretionary |