IGM Biosciences, Inc.
US ˙ NasdaqGS ˙ US4495851085
ESTE SÍMBOLO NÃO ESTÁ MAIS ATIVO

SecurityIGMS / IGM Biosciences, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership6,705 shares
Latest Disclosed Value $ 7,509
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 75.59% decrease in ownership of IGMS / IGM Biosciences, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 6,705 shares of IGM Biosciences, Inc. (US:IGMS) valued at $7,510 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 27,469 shares of IGM Biosciences, Inc.. This represents a change in shares of -75.59% during the quarter. The current value of the position is $8,515 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-08-26 2025-06-30 NP IGM Biosciences EC US4495851085 6,705 -20,764 -75.59 8 -77.42 0.0002
2025-05-28 2025-03-31 NP IGM Biosciences EC US4495851085 27,469 0 0.00 32 -81.44 0.0008
2025-02-25 2024-12-31 NP IGM Biosciences EC US4495851085 27,469 0 0.00 168 -63.22 0.0037
2024-11-26 2024-09-30 NP IGM Biosciences EC US4495851085 27,469 334 1.23 454 144.09 0.0086
2024-08-26 2024-06-30 NP IGM Biosciences EC US4495851085 27,135 5,340 24.50 186 -11.43 0.0038
2024-05-28 2024-03-31 NP IGM Biosciences EC US4495851085 21,795 0 0.00 210 16.02 0.0044
2024-02-26 2023-12-31 NP IGM Biosciences EC US4495851085 21,795 0 0.00 181 0.00 0.0039
2023-11-28 2023-09-30 NP IGM Biosciences EC US4495851085 21,795 0 0.00 182 -9.95 0.0047
2023-08-25 2023-06-30 NP IGM Biosciences EC US4495851085 21,795 4,380 25.15 201 -15.90 0.0048
2023-05-26 2023-03-31 NP IGM Biosciences EC US4495851085 17,415 0 0.00 239 -19.26 0.0064
2023-02-24 2022-12-31 NP IGM Biosciences EC US4495851085 17,415 1,504 9.45 296 -18.01 0.0081
2022-11-25 2022-09-30 NP IGM Biosciences EC US4495851085 15,911 1,859 13.23 362 42.69 0.0104
2022-08-25 2022-06-30 NP IGM Biosciences EC US4495851085 14,052 0 0.00 253 -32.53 0.0070
2022-05-26 2022-03-31 NP IGM Biosciences EC US4495851085 14,052 0 0.00 376 -8.98 0.0087
2022-02-25 2021-12-31 NP IGM Biosciences EC US4495851085 14,052 2,739 24.21 412 -44.55 0.0089
2021-11-24 2021-09-30 NP IGM Biosciences EC US4495851085 11,313 0 0.00 744 -21.04 0.0164
2021-08-26 2021-06-30 NP IGM Biosciences EC US4495851085 11,313 0 0.00 941 8.54 0.0202
2021-05-27 2021-03-31 NP IGM Biosciences EC US4495851085 11,313 643 6.03 868 -7.96 0.0197
2021-02-25 2020-12-31 NP IGM Biosciences EC US4495851085 10,670 -1,309 -10.93 942 6.56 0.0241
2020-11-25 2020-09-30 NP IGM Biosciences EC US4495851085 11,979 0 0.00 884 1.14 0.0284
2020-08-27 2020-06-30 NP IGM Biosciences EC US4495851085 11,979 3,700 44.69 874 88.36 0.0286
2020-06-01 2020-03-31 NP IGM Biosciences EC US4495851085 8,279 8,279 465 0.0190
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.