CoStar Group, Inc.
US ˙ NasdaqGS ˙ US22160N1090

SecurityCSGP / CoStar Group, Inc.
InstitutionJump Financial, LLC
Latest Disclosed Ownership7,141 shares
Latest Disclosed Value $ 288,069
Jump Financial, LLC ownership in CSGP / CoStar Group, Inc.

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 7,141 shares of CoStar Group, Inc. (US:CSGP) valued at $288,068 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of CoStar Group, Inc.. The current value of the position is $240,366 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)
2026-05-14 2026-03-31 13F CoStar Group Common Stock 22160N109 7,141 7,141 288 0.0034
2026-02-17 2025-12-31 13F CoStar Group Common Stock 22160N109 0 -13,574 -100.00 0 -100.00
2025-11-13 2025-09-30 13F CoStar Group Common Stock 22160N109 13,574 -14,607 -51.83 1,145 -49.45 0.0137
2025-08-13 2025-06-30 13F CoStar Group Common Stock 22160N109 28,181 28,181 2,266 0.0250
2025-02-13 2024-12-31 13F CoStar Group Common Stock 22160N109 0 -10,001 -100.00 0 -100.00
2024-11-14 2024-09-30 13F CoStar Group Common Stock 22160N109 10,001 -83,993 -89.36 754 -89.18 0.0154
2024-11-14 2024-06-30 13F/A-1 CoStar Group Common Stock 22160N109 93,994 53,389 131.48 6,969 77.66 0.1392
2024-08-14 2024-06-30 13F COSTAR GROUP Common Stock 22160N109 93,994 53,389 6,969 0.1392
2024-05-13 2024-03-31 13F COSTAR GROUP Common Stock 22160N109 40,605 27,837 218.02 3,922 251.75 0.1074
2024-10-21 2023-12-31 13F/A-1 CoStar Group Common Stock 22160N109 12,768 2,159 20.35 1,116 36.81 0.0367
2024-02-07 2023-12-31 13F COSTAR GROUP Common Stock 22160N109 12,768 2,159 1,116 0.0369
2024-10-21 2023-09-30 13F/A-1 CoStar Group Common Stock 22160N109 10,609 1,266 13.55 816 -1.93 0.0308
2023-11-07 2023-09-30 13F COSTAR GROUP Common Stock 22160N109 10,609 1,266 816 0.0312
2024-10-21 2023-06-30 13F/A-1 COSTAR GROUP Common Stock 22160N109 9,343 9,343 832 0.0312
2023-08-07 2023-06-30 13F COSTAR GROUP Common Stock 22160N109 9,343 9,343 832 0.0313
2023-02-14 2022-12-31 13F COSTAR GROUP Common Stock 22160N109 0 -3,950 -100.00 0 -100.00
2022-11-07 2022-09-30 13F COSTAR GROUP Common Stock 22160N109 3,950 -23,334 -85.52 275 -83.31 0.0108
2022-08-09 2022-06-30 13F COSTAR GROUP Common Stock 22160N109 27,284 23,352 593.90 1,648 529.01 0.0712
2022-05-12 2022-03-31 13F COSTAR GROUP Common Stock 22160N109 3,932 3,932 262 0.0113
2021-05-15 2021-03-31 13F COSTAR GROUP Common Stock 22160N109 0 -677 -100.00 0 -100.00
2021-02-12 2020-12-31 13F COSTAR GROUP Common Stock 22160N109 677 245 56.71 626 71.04 0.1065
2020-11-13 2020-09-30 13F COSTAR GROUP Common Stock 22160N109 432 432 366 0.0735
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.