IGMS Market Cap History — IGM Biosciences Capitalization Over Time

As of 5/6/2025 IGM Biosciences has a market cap of 40.63 million. Investors often follow the IGMS market cap history to compare the size of the company over time.

This page shows IGMS market capitalization trends over time, with 21 market cap datapoints presented, dating back to 9/18/2019.

Quick links: Market Cap History Table  |  Market Cap History Chart  |  About IGM Biosciences
IGMS Market Cap History



Below is a table of the IGMS market cap history going back to 9/18/2019:

Date IGMS Market Cap
9/18/2019469.86M
11/1/2019541.87M
3/16/2020760.28M
3/24/20212.05B
4/30/20211.81B
8/2/20211.72B
10/29/20211.22B
3/21/2022414.64M
5/2/2022523.34M
8/2/2022475.96M
10/31/2022582.77M
3/27/2023484.03M
5/4/2023371.21M
7/26/2023263.16M
11/6/2023160.85M
3/1/2024322.58M
5/1/2024318.87M
8/7/2024287.74M
10/31/2024584.08M
2/28/202546.77M
5/6/202540.63M

Also see: IGMS Shares Outstanding History
and IGMS YTD Return
IGMS Historical Market Cap:
-35.23% CAGR
IGMS Historical Market Cap: +-35.23% CAGR

Mouse over chart for data details
9/18/2019 ...5/6/2025
IGM Biosciences, Inc. is a clinical-stage biotechnology company. Co. is engaged in developing and delivering a new class of medicines to treat patients with cancer and autoimmune and inflammatory diseases. Co.'s pipeline of clinical and preclinical assets is based on the IgM antibody, which has 10 binding sites compared to conventional IgG antibodies with only two binding sites. It is also focused on creating, developing, manufacturing, and commercializing IgM antibody agonists against oncology and immunology and inflammation targets. Co.'s development programs include Aplitabart, Imvotamab, and IGM-2644. We show 21 historical shares outstanding datapoints in our IGMS shares outstanding history coverage, used to compute IGMS market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing IGMS market cap history over the course of time is important for investors interested in comparing IGMS's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of IGMS versus a peer is one thing; comparing IGMS market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like IGMS can fluctuate over the course of history. With this page we aim to empower investors researching IGMS by allowing them to research the IGMS market cap history.
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Video: The Importance of Market Cap
IGM Biosciences (IGMS) is categorized under the Healthcare sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

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