CoStar Group, Inc.
US ˙ NasdaqGS ˙ US22160N1090

SecurityCSGP / CoStar Group, Inc.
InstitutionPacer Advisors, Inc.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Pacer Advisors, Inc. closes position in CSGP / CoStar Group, Inc.

On May 6, 2026 - Pacer Advisors, Inc. filed a 13F-HR form disclosing ownership of 0 shares of CoStar Group, Inc. (US:CSGP) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 24, 2026 disclosing 64,330 shares of CoStar Group, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 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)
2026-05-06 2026-03-31 13F CoStar Group Common Stock - Domestic 22160N109 0 -64,330 -100.00 0 -100.00
2026-02-24 2025-12-31 13F/A-1 CoStar Group Common Stock - Domestic 22160N109 64,330 1,029 1.63 4,326 -19.01 0.0110
2025-10-15 2025-09-30 13F CoStar Group Common Stock - Domestic 22160N109 63,301 -1,601 -2.47 5,341 2.34 0.0134
2025-08-12 2025-06-30 13F CoStar Group Common Stock - Domestic 22160N109 64,902 23,011 54.93 5,218 57.22 0.0130
2025-05-06 2025-03-31 13F CoStar Group Common Stock - Domestic 22160N109 41,891 -13,446 -24.30 3,319 -16.21 0.0078
2025-01-22 2024-12-31 13F CoStar Group Common Stock - Domestic 22160N109 55,337 4,716 9.32 3,962 3.75 0.0085
2024-11-12 2024-09-30 13F CoStar Group Common Stock - Domestic 22160N109 50,621 1,946 4.00 3,819 5.82 0.0081
2024-08-13 2024-06-30 13F CoStar Group Common Stock - Domestic 22160N109 48,675 1,633 3.47 3,609 -20.60 0.0082
2024-05-10 2024-03-31 13F CoStar Group Common Stock - Domestic 22160N109 47,042 -4,589 -8.89 4,544 0.71 0.0104
2024-01-16 2023-12-31 13F COSTAR GROUP Common Stock - Domestic 22160N109 51,631 2,667 5.45 4,512 19.87 0.0128
2023-11-13 2023-09-30 13F COSTAR GROUP Common Stock - Domestic 22160N109 48,964 5,920 13.75 3,765 -1.72 0.0144
2023-07-12 2023-06-30 13F COSTAR GROUP Common Stock - Domestic 22160N109 43,044 -14,550 -25.26 3,831 -3.40 0.0154
2023-05-02 2023-03-31 13F COSTAR GROUP Common Stock - Domestic 22160N109 57,594 42,227 274.79 3,965 234.04 0.0169
2023-02-06 2022-12-31 13F COSTAR GROUP Common Stock - Domestic 22160N109 15,367 14,560 1,804.21 1,188 2,019.64 0.0061
2022-10-18 2022-09-30 13F COSTAR GROUP Common Stock - Domestic 22160N109 807 807 56 0.0004
2020-10-19 2020-09-30 13F COSTAR GROUP Common Stock 22160N109 0 -3,065 -100.00 0 -100.00
2020-07-29 2020-06-30 13F COSTAR GROUP Common Stock 22160N109 3,065 92 3.09 2,178 15.30 0.0441
2020-04-23 2020-03-31 13F COSTAR GROUP Common Stock 22160N109 2,973 95 3.30 1,889 9.70 0.0380
2020-02-10 2019-12-31 13F COSTAR GROUP Common Stock 22160N109 2,878 2,878 1,722 0.0778
2018-02-14 2017-12-31 13F CoStar Group Com 22160N109 0 -6,049 -100.00 0 -100.00
2017-11-08 2017-09-30 13F CoStar Group Com 22160N109 6,049 706 13.21 1,623 15.27 0.1438
2017-08-08 2017-06-30 13F COSTAR GROUP Com 22160N109 5,343 345 6.90 1,408 35.91 0.1393
2017-05-09 2017-03-31 13F COSTAR GROUP Com 22160N109 4,998 792 18.83 1,036 30.64 0.1270
2017-02-08 2016-12-31 13F COSTAR GROUP Com 22160N109 4,206 200 4.99 793 -8.54 0.1130
2016-11-10 2016-09-30 13F COSTAR GROUP Com 22160N109 4,006 346 9.45 867 8.24 0.1318
2016-08-12 2016-06-30 13F COSTAR GROUP Com 22160N109 3,660 3,050 500.00 801 596.52 0.1265
2016-05-13 2016-03-31 13F COSTAR GROUP Com 22160N109 610 37 6.46 115 -2.54 0.0261
2016-02-17 2015-12-31 13F COSTAR GROUP Com 22160N109 573 573 118 0.0277
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.