CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionVenturi Wealth Management, LLC
Latest Disclosed Ownership11,337 shares
Latest Disclosed Value $ 457,335
Venturi Wealth Management, LLC reports 3.02% decrease in ownership of CSGP / CoStar Group, Inc.

On April 21, 2026 - Venturi Wealth Management, LLC filed a 13F-HR form disclosing ownership of 11,337 shares of CoStar Group, Inc. (MX:CSGP) valued at $457,335 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 11,690 shares of CoStar Group, Inc.. This represents a change in shares of -3.02% during the quarter.

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)
2026-04-21 2026-03-31 13F Costar Group Common Stock 22160N109 11,337 -353 -3.02 457 -41.86 0.0206
2026-01-22 2025-12-31 13F Costar Group Common Stock 22160N109 11,690 1,381 13.40 786 -9.55 0.0349
2025-10-23 2025-09-30 13F Costar Group Common Stock 22160N109 10,309 717 7.47 870 12.71 0.0220
2025-07-23 2025-06-30 13F Costar Group Common Stock 22160N109 9,592 4,106 74.85 771 77.65 0.0381
2025-05-06 2025-03-31 13F COSTAR GROUP COM 22160N109 5,486 80 1.48 435 12.14 0.0226
2025-01-31 2024-12-31 13F COSTAR GROUP COM 22160N109 5,406 416 8.34 387 2.93 0.0190
2024-11-04 2024-09-30 13F COSTAR GROUP COM 22160N109 4,990 125 2.57 376 4.44 0.0197
2024-07-19 2024-06-30 13F COSTAR GROUP COM 22160N109 4,865 1,028 26.79 361 -2.70 0.0214
2024-04-23 2024-03-31 13F COSTAR GROUP COM 22160N109 3,837 364 10.48 371 22.11 0.0238
2024-01-23 2023-12-31 13F COSTAR GROUP COM 22160N109 3,473 953 37.82 304 56.99 0.0214
2023-11-02 2023-09-30 13F COSTAR GROUP COM 22160N109 2,520 493 24.32 194 7.22 0.0152
2023-07-24 2023-06-30 13F COSTAR GROUP COM 22160N109 2,027 409 25.28 180 62.16 0.0145
2023-05-02 2023-03-31 13F COSTAR GROUP COM 22160N109 1,618 1,618 111 0.0092
2021-08-02 2021-06-30 13F COSTAR GROUP COM 22160N109 0 -267 -100.00 0 -100.00
2021-04-22 2021-03-31 13F COSTAR GROUP COM 22160N109 267 13 5.12 219 -6.81 0.0209
2021-01-28 2020-12-31 13F COSTAR GROUP COM 22160N109 254 -77 -23.26 235 -16.37 0.0243
2020-11-03 2020-09-30 13F COSTAR GROUP COM 22160N109 331 319 2,658.33 281 3,914.29 0.0325
2019-10-29 2019-09-30 13F COSTAR GROUP COM 22160N109 12 12 7 0.0009
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.