면역회사
US ˙ NasdaqGM ˙ US45254E1073

SecurityIMRX / Immuneering Corporation
InstitutionVanguard Group Inc
Latest Disclosed Ownership2,568,293 shares
Latest Disclosed Value $ 16,899,368
Vanguard Group Inc reports 6.34% increase in ownership of IMRX / Immuneering Corporation

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 2,568,293 shares of Immuneering Corporation (US:IMRX) valued at $16,899,368 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 2,415,244 shares of Immuneering Corporation. This represents a change in shares of 6.34% during the quarter. The current value of the position is $10,966,611 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-01-29 2025-12-31 13F IMMUNEERING CLASS A COM 45254E107 2,568,293 153,049 6.34 16,899 -0.04 0.0002
2025-11-07 2025-09-30 13F IMMUNEERING CLASS A COM 45254E107 2,415,244 1,358,322 128.52 16,907 374.75 0.0003
2025-08-11 2025-06-30 13F IMMUNEERING CLASS A COM 45254E107 1,056,922 0 0.00 3,562 121.73 0.0001
2025-05-09 2025-03-31 13F IMMUNEERING CLASS A COM 45254E107 1,056,922 0 0.00 1,607 -30.92 0.0000
2025-02-11 2024-12-31 13F IMMUNEERING CLASS A COM 45254E107 1,056,922 -13,400 -1.25 2,325 -12.76 0.0000
2024-11-13 2024-09-30 13F IMMUNEERING CLASS A COM 45254E107 1,070,322 0 0.00 2,665 94.53 0.0000
2024-08-13 2024-06-30 13F IMMUNEERING CLASS A COM 45254E107 1,070,322 -133,344 -11.08 1,370 -60.61 0.0000
2024-05-10 2024-03-31 13F IMMUNEERING CLASS A COM 45254E107 1,203,666 129,851 12.09 3,479 -55.93 0.0001
2024-03-11 2023-12-31 13F/A-1 IMMUNEERING CLASS A COM 45254E107 1,073,815 29,963 2.87 7,893 -1.55 0.0002
2024-02-14 2023-12-31 13F IMMUNEERING CLASS A COM 45254E107 1,073,815 29,963 7,893 0.0001
2023-12-18 2023-09-30 13F/A-1 IMMUNEERING CLASS A COM 45254E107 1,043,852 42,722 4.27 8,017 -21.03 0.0002
2023-11-14 2023-09-30 13F IMMUNEERING CLASS A COM 45254E107 1,043,852 42,722 8,017 0.0002
2023-08-14 2023-06-30 13F IMMUNEERING CLASS A COM 45254E107 1,001,130 125,162 14.29 10,151 19.35 0.0002
2023-07-14 2023-03-31 13F/A-1 IMMUNEERING CLASS A COM 45254E107 875,968 38,289 4.57 8,506 109.38 0.0002
2023-05-15 2023-03-31 13F IMMUNEERING CLASS A COM 45254E107 875,968 38,289 8,506 0.0000
2023-02-10 2022-12-31 13F IMMUNEERING CLASS A COM 45254E107 837,679 19,190 2.34 4,063 -65.34 0.0001
2022-11-14 2022-09-30 13F IMMUNEERING CLASS A COM 45254E107 818,489 77,866 10.51 11,721 192.51 0.0003
2022-08-12 2022-06-30 13F IMMUNEERING CLASS A COM 45254E107 740,623 -71,769 -8.83 4,007 -23.76 0.0001
2022-05-13 2022-03-31 13F IMMUNEERING CLASS A COM 45254E107 812,392 498,479 158.80 5,256 3.55 0.0001
2022-02-14 2021-12-31 13F IMMUNEERING CLASS A COM 45254E107 313,913 -29,688 -8.64 5,076 -44.36 0.0001
2021-11-12 2021-09-30 13F IMMUNEERING CLASS A COM 45254E107 343,601 343,601 9,123 0.0002
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.