CoStar Group, Inc.
US ˙ NasdaqGS ˙ US22160N1090

SecurityCSGP / CoStar Group, Inc.
InstitutionDynamic Technology Lab Private Ltd
Latest Disclosed Ownership16,553 shares
Latest Disclosed Value $ 667,748
Dynamic Technology Lab Private Ltd ownership in CSGP / CoStar Group, Inc.

On May 15, 2026 - Dynamic Technology Lab Private Ltd filed a 13F-HR form disclosing ownership of 16,553 shares of CoStar Group, Inc. (US:CSGP) valued at $667,748 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of CoStar Group, Inc.. The current value of the position is $552,870 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)
2026-05-15 2026-03-31 13F COSTAR GROUP COM 22160N109 16,553 16,553 668 0.1085
2026-02-13 2025-12-31 13F COSTAR GROUP COM 22160N109 0 -9,719 -100.00 0 -100.00
2025-11-13 2025-09-30 13F COSTAR GROUP COM 22160N109 9,719 6,411 193.80 820 208.27 0.1389
2025-08-12 2025-06-30 13F COSTAR GROUP COM 22160N109 3,308 3,308 266 0.0361
2025-05-16 2025-03-31 13F COSTAR GROUP COM 22160N109 0 -19,179 -100.00 0 -100.00
2025-02-13 2024-12-31 13F COSTAR GROUP COM 22160N109 19,179 46 0.24 1,373 -4.85 0.2207
2024-11-13 2024-09-30 13F COSTAR GROUP COM 22160N109 19,133 209 1.10 1,443 144,200.00 0.1527
2024-08-15 2024-06-30 13F COSTAR GROUP COM 22160N109 18,924 18,924 1 0.1585
2023-08-14 2023-06-30 13F COSTAR GROUP COM 22160N109 0 -21,368 -100.00 0 -100.00
2023-05-12 2023-03-31 13F COSTAR GROUP COM 22160N109 21,368 21,368 1 0.1356
2022-05-16 2022-03-31 13F COSTAR GROUP COM 22160N109 0 -18,300 -100.00 0 -100.00
2022-02-14 2021-12-31 13F COSTAR GROUP COM 22160N109 18,300 18,300 1,446 0.1601
2021-11-15 2021-09-30 13F COSTAR GROUP COM 22160N109 0 -15,481 -100.00 0 -100.00
2021-08-13 2021-06-30 13F COSTAR GROUP COM 22160N109 15,481 14,987 3,033.81 1,282 215.76 0.1289
2021-05-14 2021-03-31 13F COSTAR GROUP COM 22160N109 494 184 59.35 406 41.46 0.0458
2021-02-11 2020-12-31 13F COSTAR GROUP COM 22160N109 310 57 22.53 287 33.49 0.0464
2020-11-13 2020-09-30 13F COSTAR GROUP COM 22160N109 253 253 215 0.0346
2020-05-13 2020-03-31 13F COSTAR GROUP COM 22160N109 0 -573 -100.00 0 -100.00
2020-02-14 2019-12-31 13F COSTAR GROUP COM 22160N109 573 -234 -29.00 343 -28.39 0.0550
2019-11-14 2019-09-30 13F COSTAR GROUP COM 22160N109 807 807 479 0.0841
2019-08-14 2019-06-30 13F COSTAR GROUP COM 22160N109 0 -1,101 -100.00 0 -100.00
2019-05-13 2019-03-31 13F COSTAR GROUP COM 22160N109 1,101 -724 -39.67 514 -16.42 0.0843
2019-02-13 2018-12-31 13F COSTAR GROUP COM 22160N109 1,825 -2,610 -58.85 615 -67.06 0.1064
2018-11-14 2018-09-30 13F COSTAR GROUP COM 22160N109 4,435 4,435 1,867 0.2593
2018-08-14 2018-06-30 13F COSTAR GROUP COM 22160N109 0 -600 -100.00 0 -100.00
2018-06-14 2018-03-31 13F/A-1 COSTAR GROUP COM 22160N109 600 600 218 0.0325
2018-05-14 2018-03-31 13F COSTAR GROUP COM 22160N109 600 600 218
2017-05-11 2017-03-31 13F COSTAR GROUP COM 22160N109 0 -2,156 -100.00 0 -100.00
2017-02-13 2016-12-31 13F COSTAR GROUP COM 22160N109 2,156 -271 -11.17 406 5.73 0.1090
2016-02-24 2014-06-30 13F/A-1 COSTAR GROUP COM 22160N109 2,427 -570 -19.02 384 -31.43 0.4961
2016-02-24 2014-03-31 13F/A-1 COSTAR GROUP COM 22160N109 2,997 1,653 122.99 560 125.81 0.6414
2016-02-22 2013-12-31 13F/A-1 COSTAR GROUP COM 22160N109 1,344 1,344 248 0.4104
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.