United States Biotechnology & Medical Research

IGM Biosciences Inc (IGMS)

Track

Ticker: IGMS Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Sale 23 Jul 2025
Value US$1,175,586.28 | Price 111.96 | Shares 59,569 (-27.3%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-07-25 2025-07-23 S Sale
3.2
Harler Mary Beth

Chief Executive Officer

Executive Director
59,569 -27.3%
111.96
US$1,175,586 		59,569 -27.3% 111.96 US$1,175,586
2025-07-25 2025-07-23 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
46,244 +9.4%
40.75
US$1,662,561 		46,244 +9.4% 40.75 US$1,662,561
2025-07-25 2025-07-23 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
31,638 -28.1%
295.51
US$25,068 		31,638 -28.1% 295.51 US$25,068
2025-06-20 2025-06-16 S Sale
3.2
Harler Mary Beth

Chief Executive Officer

Executive Director
1,522 -0.4%
1.20
US$1,825 		1,522 -0.4% 1.20 US$1,825
2025-06-20 2025-06-16 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
1,522 -0.8%
1.20
US$1,825 		1,522 -0.8% 1.20 US$1,825
2025-06-20 2025-06-16 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
486 -1.8%
1.20
US$583 		486 -1.8% 1.20 US$583
2025-06-20 2025-06-16 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
951 -1.3%
1.20
US$1,140 		951 -1.3% 1.20 US$1,140
2025-05-16 2025-05-14 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
1,865 -6.5%
1.12
US$2,090 		1,865 -6.5% 1.12 US$2,090
2025-03-18 2025-03-14 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
1,701 -5.6%
1.23
US$2,092 		1,701 -5.6% 1.23 US$2,092
2025-03-18 2025-03-14 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
7,329 -3.9%
1.23
US$9,015 		7,329 -3.9% 1.23 US$9,015
2025-03-18 2025-03-14 S Sale
3.2
Harler Mary Beth

Chief Executive Officer

Executive Director
7,329 -2.1%
1.23
US$9,015 		7,329 -2.1% 1.23 US$9,015
2025-03-18 2025-03-14 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
4,512 -5.8%
1.23
US$5,550 		4,512 -5.8% 1.23 US$5,550
2025-03-14 2025-03-14 PrS Proposed sale
3.7
Misbah Tahir

Officer

Officer
8,259
1.29
US$10,654 		8,259 1.29 US$10,654
2025-03-14 2025-03-14 PrS Proposed sale
3.2
Mary Beth Harler

Officer

Officer
8,259
1.29
US$10,654 		8,259 1.29 US$10,654
2025-03-14 2025-03-14 PrS Proposed sale
3.2
Lisa Lynn Decker

Officer

Officer
5,079
1.29
US$6,552 		5,079 1.29 US$6,552
2025-01-17 2025-01-15 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
1,122 -3.5%
1.70
US$1,907 		1,122 -3.5% 1.70 US$1,907
2024-12-18 2024-12-16 S Sale
3.2
Harler Mary Beth

Chief Executive Officer

Executive Director
1,708 -0.5%
7.48
US$12,776 		1,708 -0.5% 7.48 US$12,776
2024-12-18 2024-12-16 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
1,063 -1.3%
7.48
US$7,951 		1,063 -1.3% 7.48 US$7,951
2024-12-18 2024-12-16 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
539 -1.7%
7.48
US$4,032 		539 -1.7% 7.48 US$4,032
2024-12-18 2024-12-16 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
1,708 -0.9%
7.48
US$12,776 		1,708 -0.9% 7.48 US$12,776
2024-12-16 2024-12-16 PrS Proposed sale
2.8
Fred Schwarzer

Former Officer and Director

Executive Director
32,250
7.17
US$231,232 		32,250 7.17 US$231,232
2024-12-16 2024-12-16 PrS Proposed sale
3.1
Bruce Keyt

Former Officer

Officer
18,762
7.17
US$134,524 		18,762 7.17 US$134,524
2024-09-17 2024-09-13 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
469 -1.8%
11.54
US$5,412 		469 -1.8% 11.54 US$5,412
2024-09-17 2024-09-13 S Sale
3.4
Takimoto Chris H

CHIEF MEDICAL OFFICER

Officer
1,487 -1.0%
11.54
US$17,158 		1,487 -1.0% 11.54 US$17,158
2024-09-17 2024-09-13 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
925 -1.2%
11.54
US$10,673 		925 -1.2% 11.54 US$10,673
2024-09-17 2024-09-13 S Sale
3.1
Keyt Bruce

CHIEF SCIENTIFIC OFFICER

Officer
1,487 -0.6%
11.54
US$17,158 		1,487 -0.6% 11.54 US$17,158
2024-09-17 2024-09-13 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
1,487 -1.2%
11.54
US$17,158 		1,487 -1.2% 11.54 US$17,158
2024-09-17 2024-09-13 S Sale
2.8
Schwarzer Fred

CEO AND PRESIDENT

Executive Director
3,946 -1.6%
11.54
US$45,532 		3,946 -1.6% 11.54 US$45,532
2024-09-17 2024-09-13 S Sale
3.2
Harler Mary Beth

Head, Research & Autoimmunity

Officer
1,487 -0.9%
11.54
US$17,158 		1,487 -0.9% 11.54 US$17,158
2024-07-29 2024-07-25 PlS Planned sale
3.8
Hambleton Julie
Non-Executive Director
15,132 -88.3%
14.00
US$211,848 		15,132 -88.3% 14.00 US$211,848
2024-07-25 2024-07-25 PrS Proposed sale
3.8
Hambleton Julie

Director

Non-Executive Director
15,132
13.95
US$211,079 		15,132 13.95 US$211,079
2024-06-18 2024-06-14 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
495 -1.9%
7.58
US$3,750 		495 -1.9% 7.58 US$3,750
2024-06-18 2024-06-14 S Sale
2.8
Schwarzer Fred

CEO AND PRESIDENT

Executive Director
4,164 -1.6%
7.58
US$31,544 		4,164 -1.6% 7.58 US$31,544
2024-06-18 2024-06-14 S Sale
3.4
Takimoto Chris H

CHIEF MEDICAL OFFICER

Officer
1,570 -1.6%
7.58
US$11,893 		1,570 -1.6% 7.58 US$11,893
2024-06-18 2024-06-14 S Sale
3.1
Keyt Bruce

CHIEF SCIENTIFIC OFFICER

Officer
1,106 -0.6%
7.58
US$8,378 		1,106 -0.6% 7.58 US$8,378
2024-06-18 2024-06-14 S Sale
3.2
Harler Mary Beth

Head, Research & Autoimmunity

Officer
1,570 -1.8%
7.58
US$11,893 		1,570 -1.8% 7.58 US$11,893
2024-06-18 2024-06-14 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
977 -1.6%
7.58
US$7,401 		977 -1.6% 7.58 US$7,401
2024-06-18 2024-06-14 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
1,570 -1.7%
7.58
US$11,893 		1,570 -1.7% 7.58 US$11,893
2024-03-28 2024-03-28 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
89,407 +2.4%
9.62
US$860,042 		89,407 +2.4% 9.62 US$860,042
2024-03-28 2024-03-28 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
8,066 +2.4%
9.62
US$77,590 		8,066 +2.4% 9.62 US$77,590
2024-03-28 2024-03-27 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
8,439 +0.2%
9.27
US$78,207 		8,439 +0.2% 9.27 US$78,207
2024-03-28 2024-03-27 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
761 +0.2%
9.27
US$7,052 		761 +0.2% 9.27 US$7,052
2024-03-28 2024-03-27 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
17,101 +0.5%
9.22
US$157,683 		17,101 +0.5% 9.22 US$157,683
2024-03-28 2024-03-27 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
1,543 +0.5%
9.22
US$14,228 		1,543 +0.5% 9.22 US$14,228
2024-03-28 2024-03-26 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
247,656 +7.3%
8.26
US$2,046,159 		247,656 +7.3% 8.26 US$2,046,159
2024-03-28 2024-03-26 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
22,344 +7.1%
8.26
US$184,608 		22,344 +7.1% 8.26 US$184,608
2024-03-15 2024-03-14 S Sale
3.1
Keyt Bruce

CHIEF SCIENTIFIC OFFICER

Officer
1,844 -1.1%
10.17
US$18,754 		1,844 -1.1% 10.17 US$18,754
2024-03-15 2024-03-14 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
464 -1.7%
10.17
US$4,719 		464 -1.7% 10.17 US$4,719
2024-03-15 2024-03-14 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
1,578 -2.5%
10.17
US$16,049 		1,578 -2.5% 10.17 US$16,049
2024-03-15 2024-03-14 S Sale
3.4
Takimoto Chris H

CHIEF MEDICAL OFFICER

Officer
2,535 -2.6%
10.17
US$25,782 		2,535 -2.6% 10.17 US$25,782
2024-03-15 2024-03-14 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
2,543 -2.7%
10.17
US$25,864 		2,543 -2.7% 10.17 US$25,864
2024-03-15 2024-03-14 S Sale
2.8
Schwarzer Fred

CEO AND PRESIDENT

Executive Director
4,182 -1.9%
10.17
US$42,533 		4,182 -1.9% 10.17 US$42,533
2024-03-15 2024-03-13 S Sale
3.1
Keyt Bruce

CHIEF SCIENTIFIC OFFICER

Officer
2,101 -1.2%
9.88
US$20,748 		2,101 -1.2% 9.88 US$20,748
2024-03-15 2024-03-13 S Sale
3.6
Weber Steven

PRINCIPAL ACCOUNTING OFFICER

Officer
529 -1.9%
9.88
US$5,224 		529 -1.9% 9.88 US$5,224
2024-03-15 2024-03-13 S Sale
3.2
Decker Lisa Lynn

CHIEF BUSINESS OFFICER

Officer
1,798 -2.8%
9.88
US$17,756 		1,798 -2.8% 9.88 US$17,756
2024-03-15 2024-03-13 S Sale
3.4
Takimoto Chris H

CHIEF MEDICAL OFFICER

Officer
2,889 -2.9%
9.88
US$28,529 		2,889 -2.9% 9.88 US$28,529
2024-03-15 2024-03-13 S Sale
3.7
Tahir Misbah

CHIEF FINANCIAL OFFICER

Officer
2,897 -3.0%
9.88
US$28,608 		2,897 -3.0% 9.88 US$28,608
2024-03-15 2024-03-13 S Sale
2.8
Schwarzer Fred

CEO AND PRESIDENT

Executive Director
4,765 -2.1%
9.88
US$47,055 		4,765 -2.1% 9.88 US$47,055
2024-03-13 2024-03-13 PrS Proposed sale
3.4
Chris H Takimoto

Officer

Officer
6,612
9.95
US$65,789 		6,612 9.95 US$65,789
2024-03-13 2024-03-13 PrS Proposed sale
3.7
Misbah Tahir

Officer

Officer
6,612
9.95
US$65,789 		6,612 9.95 US$65,789
2024-03-13 2024-03-13 PrS Proposed sale
2.8
Fred Schwarzer

Officer; Director

Executive Director
11,518
9.95
US$114,604 		11,518 9.95 US$114,604
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
214,025 +6.7%
6.60
US$1,412,565 		214,025 +6.7% 6.60 US$1,412,565
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
17,066 +5.7%
6.60
US$112,636 		17,066 +5.7% 6.60 US$112,636
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
52,528 +1.7%
6.37
US$334,399 		52,528 +1.7% 6.37 US$334,399
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
4,188 +1.4%
6.37
US$26,661 		4,188 +1.4% 6.37 US$26,661
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
185 +0.0%
6.36
US$1,176 		185 +0.0% 6.36 US$1,176
2023-12-15 2023-12-15 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
15 +0.0%
6.36
US$95 		15 +0.0% 6.36 US$95
2023-12-15 2023-12-14 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
145,749 +4.9%
6.50
US$947,602 		145,749 +4.9% 6.50 US$947,602
2023-12-15 2023-12-14 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
11,621 +4.1%
6.50
US$75,555 		11,621 +4.1% 6.50 US$75,555
2023-12-15 2023-12-13 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
71,219 +2.5%
5.99
US$426,751 		71,219 +2.5% 5.99 US$426,751
2023-12-15 2023-12-13 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
5,679 +2.1%
5.99
US$34,029 		5,679 +2.1% 5.99 US$34,029
2023-12-15 2023-12-13 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
9,649 +0.3%
5.76
US$55,567 		9,649 +0.3% 5.76 US$55,567
2023-12-15 2023-12-13 B Purchase
3.3
BAKER BROS. ADVISORS LP
Non-Executive Director Large shareholder
769 +0.3%
5.76
US$4,429 		769 +0.3% 5.76 US$4,429
2023-12-15 2023-12-13 S Sale
3.2
Decker Lisa Lynn

Chief Business Officer

Officer
4,369 -10.9%
5.78
US$25,245 		4,369 -10.9% 5.78 US$25,245
2023-12-15 2023-12-13 S Sale
2.8
Schwarzer Fred

CEO and President

Executive Director
17,576 -14.6%
5.78
US$101,558 		17,576 -14.6% 5.78 US$101,558
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