CG Oncology, Inc.

SecurityCGON / CG Oncology, Inc.
InstitutionAvidity Partners Management LP
Latest Disclosed Ownership1,288,948 shares
Latest Disclosed Value $ 87,236,001
Avidity Partners Management LP reports 12.48% decrease in ownership of CGON / CG Oncology, Inc.

On May 28, 2026 - Avidity Partners Management LP filed a 13F-HR/A form disclosing ownership of 1,288,948 shares of CG Oncology, Inc. (US:CGON) valued at $87,236,001 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,472,699 shares of CG Oncology, Inc.. This represents a change in shares of -12.48% during the quarter. The current value of the position is $69,242,287 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)
2026-05-28 2026-03-31 13F/A-1 CG ONCOLOGY COM 156944100 1,288,948 -183,751 -12.48 87,236 42.67 17.6659
2026-02-13 2025-12-31 13F CG ONCOLOGY COM 156944100 1,472,699 -128,200 -8.01 61,146 -5.18 17.6371
2025-11-14 2025-09-30 13F CG ONCOLOGY COM 156944100 1,600,899 100,957 6.73 64,484 65.35 14.6757
2025-08-14 2025-06-30 13F CG ONCOLOGY COM 156944100 1,499,942 519,000 52.91 38,998 62.34 7.7690
2025-05-15 2025-03-31 13F CG ONCOLOGY COM 156944100 980,942 -116,858 -10.64 24,023 -23.70 4.5787
2025-02-14 2024-12-31 13F CG ONCOLOGY COM 156944100 1,097,800 -558,200 -33.71 31,485 -49.61 3.0923
2024-11-14 2024-09-30 13F CG ONCOLOGY COM 156944100 1,656,000 359,775 27.76 62,481 52.68 3.1872
2024-08-14 2024-06-30 13F CG ONCOLOGY COM 156944100 1,296,225 -158,540 -10.90 40,922 -35.92 1.7389
2024-05-15 2024-03-31 13F CG ONCOLOGY COM 156944100 1,454,765 1,454,765 63,864 2.0592
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.