(주)엑사젠
US ˙ NasdaqGM ˙ US30068X1037

SecurityXGN / Exagen Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership790,011 shares
Latest Disclosed Value $ 4,803,267
Vanguard Group Inc reports 7.66% increase in ownership of XGN / Exagen Inc.

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 790,011 shares of Exagen Inc. (US:XGN) valued at $4,803,267 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 733,824 shares of Exagen Inc.. This represents a change in shares of 7.66% during the quarter. The current value of the position is $3,784,153 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)
2026-01-29 2025-12-31 13F EXAGEN COM 30068X103 790,011 56,187 7.66 4,803 -40.44 0.0001
2025-11-07 2025-09-30 13F EXAGEN COM 30068X103 733,824 52,205 7.66 8,065 69.52 0.0001
2025-08-11 2025-06-30 13F EXAGEN COM 30068X103 681,619 190,675 38.84 4,758 169.98 0.0001
2025-05-09 2025-03-31 13F EXAGEN COM 30068X103 490,944 0 0.00 1,762 -12.43 0.0000
2025-02-11 2024-12-31 13F EXAGEN COM 30068X103 490,944 0 0.00 2,013 32.63 0.0000
2024-11-13 2024-09-30 13F EXAGEN COM 30068X103 490,944 0 0.00 1,517 69.88 0.0000
2024-08-13 2024-06-30 13F EXAGEN COM 30068X103 490,944 0 0.00 894 14.49 0.0000
2024-05-10 2024-03-31 13F EXAGEN COM 30068X103 490,944 0 0.00 781 -20.08 0.0000
2024-03-11 2023-12-31 13F/A-1 EXAGEN COM 30068X103 490,944 0 0.00 977 -17.85 0.0000
2024-02-14 2023-12-31 13F EXAGEN COM 30068X103 490,944 0 977 0.0000
2023-12-18 2023-09-30 13F/A-1 EXAGEN COM 30068X103 490,944 0 0.00 1,188 -16.51 0.0000
2023-11-14 2023-09-30 13F EXAGEN COM 30068X103 490,944 0 1,188 0.0000
2023-08-14 2023-06-30 13F EXAGEN COM 30068X103 490,944 0 0.00 1,424 19.38 0.0000
2023-07-14 2023-03-31 13F/A-1 EXAGEN COM 30068X103 490,944 0 0.00 1,193 1.19 0.0000
2023-05-15 2023-03-31 13F EXAGEN COM 30068X103 490,944 0 1,193 0.0000
2023-02-10 2022-12-31 13F EXAGEN COM 30068X103 490,944 167 0.03 1,178 -11.43 0.0000
2022-11-14 2022-09-30 13F EXAGEN COM 30068X103 490,777 0 0.00 1,330 -52.79 0.0000
2022-08-12 2022-06-30 13F EXAGEN COM 30068X103 490,777 -46,360 -8.63 2,817 -34.69 0.0001
2022-05-13 2022-03-31 13F EXAGEN COM 30068X103 537,137 -2,960 -0.55 4,313 -31.33 0.0001
2022-02-14 2021-12-31 13F EXAGEN COM 30068X103 540,097 29,892 5.86 6,281 -9.47 0.0001
2021-11-12 2021-09-30 13F EXAGEN COM 30068X103 510,205 -9,668 -1.86 6,938 -10.97 0.0002
2021-08-13 2021-06-30 13F EXAGEN COM 30068X103 519,873 106,908 25.89 7,793 7.85 0.0002
2021-05-14 2021-03-31 13F EXAGEN COM 30068X103 412,965 97,523 30.92 7,226 73.58 0.0002
2021-02-12 2020-12-31 13F EXAGEN COM 30068X103 315,442 547 0.17 4,163 21.94 0.0001
2020-11-16 2020-09-30 13F EXAGEN COM 30068X103 314,895 -360 -0.11 3,414 -12.75 0.0001
2020-08-14 2020-06-30 13F EXAGEN COM 30068X103 315,255 34,214 12.17 3,913 -12.66 0.0001
2020-05-15 2020-03-31 13F EXAGEN COM 30068X103 281,041 35,958 14.67 4,480 -28.04 0.0002
2020-02-14 2019-12-31 13F EXAGEN COM 30068X103 245,083 210,083 600.24 6,226 1,048.71 0.0002
2019-11-14 2019-09-30 13F EXAGEN COM 30068X103 35,000 35,000 542 0.0000
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.