How many institutions held IGMS - IGM Biosciences, Inc. - Common Stock, par value $0.01 per share in Q3 2021?

106 institutional investors reported IGMS - IGM Biosciences, Inc. - Common Stock, par value $0.01 per share for Q3 2021. Use the holders table for investor-level position and value details.

IGM Biosciences, Inc. - Common Stock, par value $0.01 per share (IGMS)

Q: What does CUSIP 449585108 represent in this 13F holders report?

CUSIP 449585108 is the security identifier for IGMS - IGM Biosciences, Inc. - Common Stock, par value $0.01 per share used to aggregate holder disclosures.

CUSIP: 449585108

Q3 2021 13F Holders as of 30 Sep 2021

Type / Class: Equity / Common Stock, par value $0.01 per share
Shares outstanding: 34,723,329
Total 13F shares: 16,900,148
Share change: +415,844
Total reported value: $1,111,361,370
Put/Call ratio: 16%
Price per share: $65.76
Number of holders: 106
Value change: +$22,065,266
Number of buys: 50
Number of sells: 46

Quarterly Holders Quick Answers

What is CUSIP 449585108?
CUSIP 449585108 identifies IGMS - IGM Biosciences, Inc. - Common Stock, par value $0.01 per share in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

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Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2021
Previous quarter: Q2 2021

Recent filing periods for CUSIP 449585108:

Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024

Top shareholders of IGMS - IGM Biosciences, Inc. - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.

Institutional Holders of IGM Biosciences, Inc. - Common Stock, par value $0.01 per share (IGMS) as of Q3 2021

As of 30 Sep 2021, IGM Biosciences, Inc. - Common Stock, par value $0.01 per share (IGMS) was held by 106 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 16,900,148 shares. The largest 10 holders included Redmile Group, LLC, BAKER BROS. ADVISORS LP, PRICE T ROWE ASSOCIATES INC /MD/, Artal Group S.A., ALKEON CAPITAL MANAGEMENT LLC, STATE STREET CORP, BlackRock Inc., PICTET ASSET MANAGEMENT SA, Woodline Partners LP, and VANGUARD GROUP INC. This page lists 106 institutional shareholders reporting positions in this security for the Q3 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

104

Q3 2021 holders

106

Holder diff

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 Value $	Q3 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.