Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Igm Biosciences, Inc. (IGMS) since 2019 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Igm Biosciences, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1496323.
Total stock buying since 2019: $217,227,345.
Total stock sales since 2019: $7,300,936.
Total stock option exercises since 2019: $889,003.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 54,125 | $68,144 | 0 | $0 |
| 2024 | 395,317 | $3,425,721 | 71,015 | $747,991 | 15,132 | $21,033 |
| 2023 | 735,616 | $5,140,727 | 134,123 | $1,218,690 | 33,756 | $31,393 |
| 2022 | 156,589 | $3,206,011 | 132,076 | $2,795,727 | 85,000 | $79,050 |
| 2021 | 0 | $0 | 22,547 | $1,778,435 | 64,020 | $675,959 |
| 2020 | 689,232 | $49,574,844 | 9,696 | $691,949 | 17,737 | $81,568 |
| 2019 | 9,643,440 | $155,880,042 | 0 | $0 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-07 | 0 | $0 | 27,651 | $35,198 | 0 | $0 |
| 2025-06 | 0 | $0 | 4,481 | $5,370 | 0 | $0 |
| 2025-03 | 0 | $0 | 20,871 | $25,669 | 0 | $0 |
| 2025-01 | 0 | $0 | 1,122 | $1,907 | 0 | $0 |
| 2024-12 | 0 | $0 | 5,018 | $37,532 | 0 | $0 |
| 2024-09 | 0 | $0 | 11,288 | $130,248 | 0 | $0 |
| 2024-07 | 0 | $0 | 15,132 | $211,848 | 15,132 | $21,033 |
| 2024-06 | 0 | $0 | 11,452 | $86,744 | 0 | $0 |
| 2024-03 | 395,317 | $3,425,721 | 28,125 | $281,619 | 0 | $0 |
| 2023-12 | 532,693 | $3,390,965 | 29,519 | $170,560 | 0 | $0 |
| 2023-11 | 0 | $0 | 7,147 | $40,239 | 0 | $0 |
| 2023-10 | 0 | $0 | 935 | $7,429 | 0 | $0 |
| 2023-07 | 0 | $0 | 936 | $8,818 | 0 | $0 |
| 2023-06 | 202,923 | $1,749,762 | 80,423 | $757,584 | 0 | $0 |
| 2023-05 | 0 | $0 | 7,277 | $92,075 | 0 | $0 |
| 2023-04 | 0 | $0 | 935 | $11,781 | 0 | $0 |
| 2023-03 | 0 | $0 | 6,951 | $130,204 | 0 | $0 |
| 2023-01 | 0 | $0 | 0 | $0 | 33,756 | $31,393 |
| 2022-12 | 0 | $0 | 36,092 | $691,708 | 0 | $0 |
| 2022-11 | 60,000 | $1,028,580 | 6,405 | $138,882 | 0 | $0 |
| 2022-10 | 0 | $0 | 25,000 | $570,975 | 25,000 | $23,250 |
| 2022-09 | 12,500 | $253,751 | 25,000 | $485,280 | 25,000 | $23,250 |
| 2022-08 | 0 | $0 | 25,000 | $554,346 | 25,000 | $23,250 |
| 2022-05 | 1,481 | $23,696 | 4,579 | $78,309 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-07-23 | Harler Mary Beth (Chief Executive Officer) | Sale | 14,501 | 1.27 | 18,459 |
| 2025-07-23 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 8,741 | 1.27 | 11,127 |
| 2025-07-23 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 4,409 | 1.27 | 5,612 |
| 2025-06-16 | Harler Mary Beth (Chief Executive Officer) | Sale | 1,522 | 1.20 | 1,824 |
| 2025-06-16 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 486 | 1.20 | 582 |
| 2025-06-16 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 1,522 | 1.20 | 1,824 |
| 2025-06-16 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 951 | 1.20 | 1,140 |
| 2025-03-14 | Harler Mary Beth (Chief Executive Officer) | Sale | 7,329 | 1.23 | 9,014 |
| 2025-03-14 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 1,701 | 1.23 | 2,092 |
| 2025-03-14 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 7,329 | 1.23 | 9,014 |
| 2025-03-14 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 4,512 | 1.23 | 5,549 |
| 2025-01-15 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 1,122 | 1.70 | 1,907 |
| 2024-12-16 | Harler Mary Beth (Chief Executive Officer) | Sale | 1,708 | 7.48 | 12,775 |
| 2024-12-16 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 539 | 7.48 | 4,031 |
| 2024-12-16 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 1,708 | 7.48 | 12,775 |
| 2024-12-16 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 1,063 | 7.48 | 7,951 |
| 2024-09-13 | Harler Mary Beth (Head, Research & Autoimmunity) | Sale | 1,487 | 11.54 | 17,158 |
| 2024-09-13 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 469 | 11.54 | 5,411 |
| 2024-09-13 | Keyt Bruce (CHIEF SCIENTIFIC OFFICER) | Sale | 1,487 | 11.54 | 17,158 |
| 2024-09-13 | Schwarzer Fred (CEO AND PRESIDENT) | Sale | 3,946 | 11.54 | 45,532 |
| 2024-09-13 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 1,487 | 11.54 | 17,158 |
| 2024-09-13 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 925 | 11.54 | 10,673 |
| 2024-09-13 | Takimoto Chris H (CHIEF MEDICAL OFFICER) | Sale | 1,487 | 11.54 | 17,158 |
| 2024-07-25 | Hambleton Julie | Sale | 15,132 | 14.00 | 211,848 |
| 2024-07-25 | Hambleton Julie | Option Ex | 15,132 | 1.39 | 21,033 |
| 2024-06-14 | Harler Mary Beth (Head, Research & Autoimmunity) | Sale | 1,570 | 7.58 | 11,892 |
| 2024-06-14 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 495 | 7.58 | 3,749 |
| 2024-06-14 | Keyt Bruce (CHIEF SCIENTIFIC OFFICER) | Sale | 1,106 | 7.58 | 8,377 |
| 2024-06-14 | Schwarzer Fred (CEO AND PRESIDENT) | Sale | 4,164 | 7.58 | 31,542 |
| 2024-06-14 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 1,570 | 7.58 | 11,892 |
| 2024-06-14 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 977 | 7.58 | 7,400 |
| 2024-06-14 | Takimoto Chris H (CHIEF MEDICAL OFFICER) | Sale | 1,570 | 7.58 | 11,892 |
| 2024-03-28 | Baker Bros. Advisors (gp) Llc | Buy | 97,473 | 9.62 | 937,592 |
| 2024-03-27 | Baker Bros. Advisors (gp) Llc | Buy | 27,844 | 9.24 | 257,389 |
| 2024-03-26 | Baker Bros. Advisors (gp) Llc | Buy | 270,000 | 8.26 | 2,230,740 |
| 2024-03-14 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 464 | 10.17 | 4,719 |
| 2024-03-14 | Keyt Bruce (CHIEF SCIENTIFIC OFFICER) | Sale | 1,844 | 10.17 | 18,755 |
| 2024-03-14 | Schwarzer Fred (CEO AND PRESIDENT) | Sale | 4,182 | 10.17 | 42,535 |
| 2024-03-14 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 2,543 | 10.17 | 25,864 |
| 2024-03-14 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 1,578 | 10.17 | 16,049 |
| 2024-03-14 | Takimoto Chris H (CHIEF MEDICAL OFFICER) | Sale | 2,535 | 10.17 | 25,783 |
| 2024-03-13 | Weber Steven (PRINCIPAL ACCOUNTING OFFICER) | Sale | 529 | 9.88 | 5,223 |
| 2024-03-13 | Keyt Bruce (CHIEF SCIENTIFIC OFFICER) | Sale | 2,101 | 9.88 | 20,747 |
| 2024-03-13 | Schwarzer Fred (CEO AND PRESIDENT) | Sale | 4,765 | 9.88 | 47,054 |
| 2024-03-13 | Tahir Misbah (CHIEF FINANCIAL OFFICER) | Sale | 2,897 | 9.88 | 28,607 |
| 2024-03-13 | Decker Lisa Lynn (CHIEF BUSINESS OFFICER) | Sale | 1,798 | 9.88 | 17,755 |
| 2024-03-13 | Takimoto Chris H (CHIEF MEDICAL OFFICER) | Sale | 2,889 | 9.88 | 28,528 |
| 2023-12-15 | Baker Bros. Advisors (gp) Llc | Buy | 288,007 | 6.44 | 1,854,765 |
| 2023-12-14 | Baker Bros. Advisors (gp) Llc | Buy | 157,370 | 6.50 | 1,023,219 |
| 2023-12-13 | Keyt Bruce (Chief Scientific Officer) | Sale | 7,574 | 5.78 | 43,762 |
| 2023-12-13 | Schwarzer Fred (CEO and President) | Sale | 17,576 | 5.78 | 101,554 |
| 2023-12-13 | Decker Lisa Lynn (Chief Business Officer) | Sale | 4,369 | 5.78 | 25,244 |
| 2023-12-13 | Baker Bros. Advisors (gp) Llc | Buy | 87,316 | 5.88 | 512,981 |
| 2023-11-29 | Gauthier George (Chief Commercial Officer) | Sale | 1,180 | 6.21 | 7,331 |
| 2023-11-29 | Decker Lisa Lynn (Chief Business Officer) | Sale | 1,180 | 6.21 | 7,331 |
| 2023-11-29 | Takimoto Chris H (Chief Medical Officer) | Sale | 1,180 | 6.21 | 7,331 |
| 2023-11-27 | Keyt Bruce (Chief Scientific Officer) | Sale | 933 | 5.06 | 4,720 |
| 2023-11-27 | Schwarzer Fred (CEO and President) | Sale | 1,337 | 5.06 | 6,763 |
| 2023-11-27 | Tahir Misbah (Chief Financial Officer) | Sale | 1,337 | 5.06 | 6,763 |
| 2023-10-02 | Gauthier George (Chief Commercial Officer) | Sale | 935 | 7.95 | 7,429 |
| 2023-07-03 | Gauthier George (Chief Commercial Officer) | Sale | 936 | 9.42 | 8,818 |
| 2023-06-30 | Topsoe Christina Teng (Director) | Buy | 3,000 | 9.32 | 27,957 |
| 2023-06-30 | Topsoe Jakob Haldor (Director) | Buy | 3,500 | 9.25 | 32,375 |
| 2023-06-29 | Topsoe Jakob Haldor (Director) | Buy | 3,500 | 9.10 | 31,846 |
| 2023-06-29 | Green Jeremy | Buy | 80,423 | 9.42 | 757,584 |
| 2023-06-29 | Green Jeremy | Sale | 80,423 | 9.42 | 757,584 |
| 2023-06-26 | Behrens M Kathleen (Director) | Buy | 112,500 | 8.00 | 900,000 |
| 2023-05-23 | Gauthier George (Chief Commercial Officer) | Sale | 1,259 | 12.65 | 15,930 |
| 2023-05-23 | Keyt Bruce (Chief Scientific Officer) | Sale | 982 | 12.65 | 12,425 |
| 2023-05-23 | Schwarzer Fred (CEO and President) | Sale | 1,259 | 12.65 | 15,930 |
| 2023-05-23 | Tahir Misbah (Chief Financial Officer) | Sale | 1,259 | 12.65 | 15,930 |
| 2023-05-23 | Decker Lisa Lynn (Chief Business Officer) | Sale | 1,259 | 12.65 | 15,930 |
| 2023-05-23 | Takimoto Chris H (Chief Medical Officer) | Sale | 1,259 | 12.65 | 15,930 |
| 2023-04-05 | Gauthier George (Chief Commercial Officer) | Sale | 935 | 12.60 | 11,781 |
| 2023-03-14 | Gauthier George (Chief Commercial Officer) | Sale | 1,061 | 18.73 | 19,874 |
| 2023-03-14 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,293 | 18.73 | 24,220 |
| 2023-03-14 | Tahir Misbah (Chief Financial Officer) | Sale | 1,768 | 18.73 | 33,118 |
| 2023-03-14 | Decker Lisa Lynn (Chief Business Officer) | Sale | 1,061 | 18.73 | 19,874 |
| 2023-03-14 | Takimoto Chris H (Chief Medical Officer) | Sale | 1,768 | 18.73 | 33,118 |
| 2023-01-05 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 33,756 | .93 | 31,393 |
| 2022-12-19 | Tahir Misbah (Chief Financial Officer) | Sale | 3,801 | 20.00 | 76,020 |
| 2022-12-16 | Gauthier George (Chief Commercial Officer) | Sale | 4,354 | 19.07 | 83,017 |
| 2022-12-16 | Keyt Bruce (Chief Scientific Officer) | Sale | 5,371 | 19.07 | 102,408 |
| 2022-12-16 | Schwarzer Fred (CEO and President) | Sale | 12,369 | 19.07 | 235,839 |
| 2022-12-16 | Tahir Misbah (Chief Financial Officer) | Sale | 2,283 | 19.07 | 43,529 |
| 2022-12-16 | Decker Lisa Lynn (Chief Business Officer) | Sale | 2,484 | 19.07 | 47,362 |
| 2022-12-16 | Takimoto Chris H (Chief Medical Officer) | Sale | 5,430 | 19.07 | 103,533 |
| 2022-11-23 | Gauthier George (Chief Commercial Officer) | Sale | 1,258 | 21.68 | 27,278 |
| 2022-11-23 | Keyt Bruce (Chief Scientific Officer) | Sale | 877 | 21.68 | 19,016 |
| 2022-11-23 | Schwarzer Fred (CEO and President) | Sale | 1,258 | 21.68 | 27,278 |
| 2022-11-23 | Tahir Misbah (Chief Financial Officer) | Sale | 877 | 21.68 | 19,016 |
| 2022-11-23 | Decker Lisa Lynn (Chief Business Officer) | Sale | 1,258 | 21.68 | 27,278 |
| 2022-11-23 | Takimoto Chris H (Chief Medical Officer) | Sale | 877 | 21.68 | 19,016 |
| 2022-11-08 | Behrens M Kathleen (Director) | Buy | 60,000 | 17.14 | 1,028,580 |
| 2022-10-04 | Keyt Bruce (Chief Scientific Officer) | Sale | 25,000 | 22.84 | 570,975 |
| 2022-10-04 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 25,000 | .93 | 23,250 |
| 2022-09-29 | Loberg Michael D (Director) | Buy | 5,821 | 19.62 | 114,213 |
| 2022-09-28 | Loberg Michael D (Director) | Buy | 6,172 | 20.97 | 129,402 |
| 2022-09-27 | Loberg Michael D (Director) | Buy | 507 | 19.99 | 10,136 |
| 2022-09-08 | Keyt Bruce (Chief Scientific Officer) | Sale | 10,000 | 19.96 | 199,570 |
| 2022-09-08 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 10,000 | .93 | 9,300 |
| 2022-09-07 | Keyt Bruce (Chief Scientific Officer) | Sale | 10,000 | 19.04 | 190,390 |
| 2022-09-07 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 10,000 | .93 | 9,300 |
| 2022-09-06 | Keyt Bruce (Chief Scientific Officer) | Sale | 5,000 | 19.06 | 95,320 |
| 2022-09-06 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 5,000 | .93 | 4,650 |
| 2022-08-22 | Keyt Bruce (Chief Scientific Officer) | Sale | 6,300 | 20.71 | 130,454 |
| 2022-08-22 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 6,300 | .93 | 5,859 |
| 2022-08-19 | Keyt Bruce (Chief Scientific Officer) | Sale | 8,700 | 22.82 | 198,542 |
| 2022-08-19 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 8,700 | .93 | 8,091 |
| 2022-08-18 | Keyt Bruce (Chief Scientific Officer) | Sale | 10,000 | 22.54 | 225,350 |
| 2022-08-18 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 10,000 | .93 | 9,300 |
| 2022-05-24 | Gauthier George (Chief Commercial Officer) | Sale | 1,340 | 17.10 | 22,916 |
| 2022-05-24 | Keyt Bruce (Chief Scientific Officer) | Sale | 939 | 17.10 | 16,058 |
| 2022-05-24 | Decker Lisa Lynn (Chief Business Officer) | Sale | 1,362 | 17.10 | 23,292 |
| 2022-05-24 | Takimoto Chris H (Chief Medical Officer) | Sale | 938 | 17.10 | 16,043 |
| 2022-05-20 | Topsoe Jakob Haldor (Director) | Buy | 1,481 | 16.00 | 23,696 |
| 2022-04-06 | Keyt Bruce (Chief Scientific Officer) | Sale | 2,500 | 25.00 | 62,500 |
| 2022-04-06 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2022-04-01 | Loberg Michael D (Director) | Buy | 21,739 | 23.00 | 499,997 |
| 2022-04-01 | Behrens M Kathleen (Director) | Buy | 60,869 | 23.00 | 1,399,987 |
| 2022-03-30 | Keyt Bruce (Chief Scientific Officer) | Sale | 7,500 | 28.50 | 213,727 |
| 2022-03-30 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 7,500 | .93 | 6,975 |
| 2021-11-02 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,326 | 51.37 | 68,116 |
| 2021-11-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-10-05 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,242 | 64.10 | 79,617 |
| 2021-10-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-09-03 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,244 | 70.69 | 87,932 |
| 2021-09-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-08-09 | Hambleton Julie (Director) | Sale | 1,000 | 80.00 | 80,000 |
| 2021-08-04 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,242 | 67.00 | 83,214 |
| 2021-08-02 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-07-06 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 943 | 82.75 | 78,033 |
| 2021-07-06 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,247 | 82.50 | 102,877 |
| 2021-07-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2021-07-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-06-02 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 941 | 79.15 | 74,480 |
| 2021-06-02 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,245 | 79.15 | 98,541 |
| 2021-06-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2021-06-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-05-26 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 444 | 70.00 | 31,080 |
| 2021-05-14 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 900 | 1.39 | 1,251 |
| 2021-05-05 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,243 | 62.50 | 77,687 |
| 2021-05-03 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2021-05-03 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-04-06 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,254 | 82.00 | 102,828 |
| 2021-04-05 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-03-05 | Tahir Misbah (Chief Financial Officer) | Option Ex | 2,750 | 1.39 | 3,822 |
| 2021-03-02 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 1,224 | 90.25 | 110,466 |
| 2021-03-02 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,619 | 90.25 | 146,114 |
| 2021-03-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2021-03-01 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-02-03 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 1,226 | 96.00 | 117,696 |
| 2021-02-03 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,619 | 96.00 | 155,424 |
| 2021-02-02 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2021-02-02 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2021-01-27 | Baker Julian (Director) | Option Ex | 22,420 | 28.14 | 630,786 |
| 2021-01-05 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 1,102 | 79.25 | 87,333 |
| 2021-01-05 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,503 | 79.33 | 119,232 |
| 2021-01-04 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2021-01-04 | Keyt Bruce (Chief Scientific Officer) | Sale | 883 | 88.07 | 77,765 |
| 2021-01-04 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2020-12-21 | Tahir Misbah (Chief Financial Officer) | Option Ex | 2,750 | 1.39 | 3,822 |
| 2020-12-17 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,618 | 86.10 | 139,309 |
| 2020-12-16 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,500 | .93 | 2,325 |
| 2020-12-11 | Haldor Topsoe Holding A/s (10% Owner) | Buy | 111,111 | 90.00 | 9,999,990 |
| 2020-12-11 | Topsoe Christina Teng (Director) | Buy | 111,111 | 90.00 | 9,999,990 |
| 2020-12-11 | Topsoe Jakob Haldor (Director) | Buy | 111,111 | 90.00 | 9,999,990 |
| 2020-12-11 | Behrens M Kathleen (Director) | Buy | 44,444 | 90.00 | 3,999,960 |
| 2020-12-08 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 1,219 | 91.00 | 110,929 |
| 2020-12-07 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 1,900 | 1.39 | 2,641 |
| 2020-12-02 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 608 | 63.16 | 38,398 |
| 2020-12-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2020-11-04 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 605 | 50.00 | 30,250 |
| 2020-11-02 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2020-10-02 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 1,830 | 73.50 | 134,505 |
| 2020-10-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 2,850 | 1.39 | 3,961 |
| 2020-10-01 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,000 | 73.59 | 73,590 |
| 2020-09-18 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 609 | 77.91 | 47,447 |
| 2020-09-17 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2020-09-10 | Keyt Bruce (Chief Scientific Officer) | Sale | 1,000 | 60.00 | 60,000 |
| 2020-09-10 | Behrens M Kathleen (Director) | Buy | 30,000 | 60.74 | 1,822,170 |
| 2020-09-09 | Green Jeremy | Buy | 23,260 | 52.41 | 1,219,010 |
| 2020-09-08 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 602 | 50.20 | 30,220 |
| 2020-09-08 | Green Jeremy | Buy | 47,113 | 49.91 | 2,351,504 |
| 2020-09-04 | Green Jeremy | Buy | 74,433 | 50.28 | 3,742,193 |
| 2020-09-03 | Green Jeremy | Buy | 74,253 | 48.69 | 3,615,230 |
| 2020-09-02 | Green Jeremy | Buy | 20,637 | 46.15 | 952,459 |
| 2020-09-01 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2020-09-01 | Green Jeremy | Buy | 41,759 | 44.84 | 1,872,348 |
| 2020-08-27 | Chen Daniel Shinyu (Chief Medical Officer) | Sale | 605 | 45.13 | 27,301 |
| 2020-08-11 | Chen Daniel Shinyu (Chief Medical Officer) | Option Ex | 950 | 1.39 | 1,320 |
| 2020-06-04 | Keyt Bruce (Chief Scientific Officer) | Option Ex | 2,987 | 20.83 | 62,219 |
| 2019-12-09 | Behrens M Kathleen (Director) | Buy | 20,000 | 24.93 | 498,660 |
| 2019-09-24 | Topsoe Jakob Haldor (Director) | Buy | 4,000 | 20.50 | 81,996 |
| 2019-09-20 | Baker Julian (Director) | Buy | 3,144,000 | 16.00 | 50,304,000 |
| 2019-09-19 | Topsoe Jakob Haldor (Director) | Buy | 14,340 | 22.01 | 315,609 |
| 2019-09-18 | Haldor Topsoe Holding A/s (10% Owner) | Buy | 1,250,000 | 16.00 | 20,000,000 |
| 2019-09-18 | Topsoe Christina Teng (Director) | Buy | 2,568,750 | 16.00 | 41,100,000 |
| 2019-09-18 | Topsoe Jakob Haldor (Director) | Buy | 1,285,475 | 16.99 | 21,845,362 |
| 2019-09-18 | Hambleton Julie (Director) | Buy | 5,000 | 18.31 | 91,550 |
| 2019-09-18 | Loberg Michael D (Director) | Buy | 5,000 | 18.57 | 92,865 |
| 2019-09-18 | Behrens M Kathleen (Director) | Buy | 62,500 | 16.00 | 1,000,000 |
Insider trading activities including stock purchases, stock sales, and option exercises of IGMS listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Igm Biosciences, Inc. (symbol IGMS, CIK number 1496323) see the Securities and Exchange Commission (SEC) website.