CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionChecchi Capital Advisers, LLC
Latest Disclosed Ownership5,061 shares
Latest Disclosed Value $ 204,161
Checchi Capital Advisers, LLC reports 22.90% increase in ownership of CSGP / CoStar Group, Inc.

On May 4, 2026 - Checchi Capital Advisers, LLC filed a 13F-HR form disclosing ownership of 5,061 shares of CoStar Group, Inc. (MX:CSGP) valued at $204,161 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 4,118 shares of CoStar Group, Inc.. This represents a change in shares of 22.90% 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)
2026-05-04 2026-03-31 13F COSTAR GROUP COM 22160N109 5,061 943 22.90 204 -26.09 0.0103
2026-01-27 2025-12-31 13F COSTAR GROUP COM 22160N109 4,118 -217 -5.01 277 -24.38 0.0141
2025-11-05 2025-09-30 13F COSTAR GROUP COM 22160N109 4,335 -349 -7.45 366 -2.93 0.0190
2025-07-22 2025-06-30 13F COSTAR GROUP COM 22160N109 4,684 34 0.73 377 2.17 0.0211
2025-04-29 2025-03-31 13F COSTAR GROUP COM 22160N109 4,650 1,147 32.74 368 47.20 0.0194
2025-02-05 2024-12-31 13F COSTAR GROUP COM 22160N109 3,503 111 3.27 251 -1.96 0.0146
2024-11-04 2024-09-30 13F COSTAR GROUP COM 22160N109 3,392 -105 -3.00 256 -1.54 0.0143
2024-07-26 2024-06-30 13F COSTAR GROUP COM 22160N109 3,497 -258 -6.87 259 -28.45 0.0130
2024-04-25 2024-03-31 13F COSTAR GROUP COM 22160N109 3,755 97 2.65 363 13.48 0.0283
2024-02-07 2023-12-31 13F COSTAR GROUP COM 22160N109 3,658 121 3.42 320 17.71 0.0260
2023-11-13 2023-09-30 13F COSTAR GROUP COM 22160N109 3,537 -65 -1.80 272 -15.31 0.0252
2023-08-10 2023-06-30 13F COSTAR GROUP COM 22160N109 3,602 -183 -4.83 321 23.08 0.0287
2023-05-08 2023-03-31 13F COSTAR GROUP COM 22160N109 3,785 178 4.93 261 -6.47 0.0252
2023-02-10 2022-12-31 13F COSTAR GROUP COM 22160N109 3,607 -29 -0.80 279 9.88 0.0290
2022-11-09 2022-09-30 13F COSTAR GROUP COM 22160N109 3,636 91 2.57 253 -1.56 0.0236
2022-08-11 2022-06-30 13F COSTAR GROUP COM 22160N109 3,545 -152 -4.11 257 4.47 0.0222
2022-05-09 2022-03-31 13F COSTAR GROUP COM 22160N109 3,697 -112 -2.94 246 -18.27 0.0209
2022-02-09 2021-12-31 13F COSTAR GROUP COM 22160N109 3,809 -75 -1.93 301 -9.88 0.0265
2021-11-09 2021-09-30 13F COSTAR GROUP COM 22160N109 3,884 74 1.94 334 5.70 0.0331
2021-08-06 2021-06-30 13F COSTAR GROUP COM 22160N109 3,810 3,432 907.94 316 1.61 0.0311
2021-05-10 2021-03-31 13F COSTAR GROUP COM 22160N109 378 -12 -3.08 311 -13.61 0.0307
2021-02-12 2020-12-31 13F COSTAR GROUP COM 22160N109 390 -13 -3.23 360 5.26 0.0371
2020-11-10 2020-09-30 13F COSTAR GROUP COM 22160N109 403 -38 -8.62 342 9.27 0.0379
2020-08-12 2020-06-30 13F COSTAR GROUP COM 22160N109 441 5 1.15 313 22.27 0.0374
2020-05-07 2020-03-31 13F COSTAR GROUP COM 22160N109 436 -11 -2.46 256 -4.12 0.0245
2020-02-07 2019-12-31 13F COSTAR GROUP COM 22160N109 447 -2 -0.45 267 0.38 0.0357
2019-11-06 2019-09-30 13F COSTAR GROUP COM 22160N109 449 -4 -0.88 266 5.98 0.0346
2019-08-06 2019-06-30 13F COSTAR GROUP COM 22160N109 453 0 0.00 251 18.96 0.0319
2019-05-09 2019-03-31 13F COSTAR GROUP COM 22160N109 453 453 211 0.0247
2016-11-10 2016-09-30 13F COSTAR GROUP INC COM Stock 22160N109 0 -141 -100.00 0 -100.00
2016-07-21 2016-06-30 13F COSTAR GROUP INC COM Stock 22160N109 141 17 13.71 31 34.78 0.0035
2016-05-02 2016-03-31 13F COSTAR GROUP INC COM Stock 22160N109 124 124 23 0.0051
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.