United States Biotechnology & Medical Research

IGM Biosciences Inc (IGMS)

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The most recent insider trading activity occurred on July 23, 2025. Key executives, including the CEO, CFO, and Chief Business Officer, made significant sell transactions. These sales represent a notable pattern of insider divestment in the recent period.
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Ticker: IGMS Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Harler Mary Beth
Chief Executive Officer
1 sale — total 18,457 USD
Sale 23 Jul 2025
Value US$1,175,586.28 | Price 111.96 | Shares 59,569
Sale 23 Jul 2025
Value US$1,662,561.21 | Price 40.75 | Shares 46,244
Sale 23 Jul 2025
Value US$11,125.54 | Price 1.27 | Shares 8,741
Sale 16 Jun 2025
Value US$1,825.18 | Price 1.20 | Shares 1,522
Sale 16 Jun 2025
Value US$1,825.18 | Price 1.20 | Shares 1,522
Sale 16 Jun 2025
Value US$582.81 | Price 1.20 | Shares 486
Sale 16 Jun 2025
Value US$1,140.44 | Price 1.20 | Shares 951
Sale 14 May 2025
Value US$2,089.92 | Price 1.12 | Shares 1,865
Sale 14 Mar 2025
Value US$2,092.23 | Price 1.23 | Shares 1,701
Sale 14 Mar 2025
Value US$9,014.67 | Price 1.23 | Shares 7,329
Sale 14 Mar 2025
Value US$9,014.67 | Price 1.23 | Shares 7,329
Sale 14 Mar 2025
Value US$5,549.76 | Price 1.23 | Shares 4,512
Proposed sale 14 Mar 2025
Value US$10,654.11 | Price 1.29 | Shares 8,259
Proposed sale 14 Mar 2025
Value US$10,654.11 | Price 1.29 | Shares 8,259
Proposed sale 14 Mar 2025
Value US$6,551.91 | Price 1.29 | Shares 5,079
Sale 15 Jan 2025
Value US$1,907.29 | Price 1.70 | Shares 1,122
Sale 16 Dec 2024
Value US$12,775.84 | Price 7.48 | Shares 1,708
Sale 16 Dec 2024
Value US$7,951.24 | Price 7.48 | Shares 1,063
Sale 16 Dec 2024
Value US$4,031.72 | Price 7.48 | Shares 539
Sale 16 Dec 2024
Value US$12,775.84 | Price 7.48 | Shares 1,708
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
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