CoStar Group, Inc.
US ˙ NasdaqGS ˙ US22160N1090

SecurityCSGP / CoStar Group, Inc.
InstitutionPitcairn Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Pitcairn Co closes position in CSGP / CoStar Group, Inc.

On February 12, 2026 - Pitcairn Co filed a 13F-HR form disclosing ownership of 0 shares of CoStar Group, Inc. (US:CSGP) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 26,328 shares of CoStar Group, Inc.. 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)
2026-02-12 2025-12-31 13F COSTAR GROUP COM 22160N109 0 -100.00 0
2025-11-12 2025-09-30 13F COSTAR GROUP COM 22160N109 26,328 -7,591 -22.38 2,221 -18.56 0.1754
2025-08-19 2025-06-30 13F/A-1 COSTAR GROUP COM 22160N109 33,919 -11,223 -24.86 2,727 -23.74 0.1786
2025-08-14 2025-06-30 13F COSTAR GROUP COM 22160N109 8,052 -37,090 7,971 0.4675
2025-05-09 2025-03-31 13F COSTAR GROUP COM 22160N109 45,142 178 0.40 3,577 11.12 0.2157
2025-02-12 2024-12-31 13F COSTAR GROUP COM 22160N109 44,964 -752 -1.64 3,219 -6.67 0.1901
2024-11-12 2024-09-30 13F COSTAR GROUP COM 22160N109 45,716 -8,567 -15.78 3,449 -14.31 0.2038
2024-08-13 2024-06-30 13F COSTAR GROUP COM 22160N109 54,283 2,034 3.89 4,025 -20.27 0.2458
2024-05-13 2024-03-31 13F COSTAR GROUP COM 22160N109 52,249 252 0.48 5,047 11.07 0.3271
2024-02-14 2023-12-31 13F COSTAR GROUP COM 22160N109 51,997 3,749 7.77 4,544 22.51 0.3484
2023-11-13 2023-09-30 13F COSTAR GROUP COM 22160N109 48,248 -907 -1.85 3,710 -15.20 0.3164
2023-08-11 2023-06-30 13F COSTAR GROUP COM 22160N109 49,155 16,231 49.30 4,375 93.03 0.3791
2023-05-05 2023-03-31 13F COSTAR GROUP COM 22160N109 32,924 16,116 95.88 2,267 74.58 0.2084
2023-02-13 2022-12-31 13F COSTAR GROUP COM 22160N109 16,808 852 5.34 1,299 16.83 0.1296
2022-11-14 2022-09-30 13F COSTAR GROUP COM 22160N109 15,956 313 2.00 1,111 17.57 0.1202
2022-08-12 2022-06-30 13F COSTAR GROUP COM 22160N109 15,643 1,081 7.42 945 -2.58 0.0998
2022-05-12 2022-03-31 13F COSTAR GROUP COM 22160N109 14,562 79 0.55 970 -15.28 0.0845
2022-02-14 2021-12-31 13F COSTAR GROUP COM 22160N109 14,483 -197 -1.34 1,145 -9.41 0.0737
2021-11-10 2021-09-30 13F COSTAR GROUP COM 22160N109 14,680 -200 -1.34 1,264 2.51 0.0873
2021-08-11 2021-06-30 13F COSTAR GROUP COM 22160N109 14,880 13,375 888.70 1,233 -0.32 0.0827
2021-05-10 2021-03-31 13F COSTAR GROUP COM 22160N109 1,505 -10 -0.66 1,237 -11.71 0.0878
2021-02-05 2020-12-31 13F COSTAR GROUP COM 22160N109 1,515 -7 -0.46 1,401 8.44 0.1069
2020-11-03 2020-09-30 13F COSTAR GROUP COM 22160N109 1,522 -104 -6.40 1,292 11.76 0.1098
2020-07-28 2020-06-30 13F COSTAR GROUP COM 22160N109 1,626 -42 -2.52 1,156 17.96 0.1111
2020-05-13 2020-03-31 13F COSTAR GROUP COM 22160N109 1,668 -149 -8.20 980 -9.84 0.1160
2020-02-12 2019-12-31 13F COSTAR GROUP COM 22160N109 1,817 154 9.26 1,087 10.24 0.1005
2019-11-12 2019-09-30 13F COSTAR GROUP COM 22160N109 1,663 42 2.59 986 9.80 0.0971
2019-08-12 2019-06-30 13F COSTAR GROUP COM 22160N109 1,621 -9 -0.55 898 18.16 0.0899
2019-05-07 2019-03-31 13F COSTAR GROUP COM 22160N109 1,630 -198 -10.83 760 23.18 0.0825
2019-02-12 2018-12-31 13F COSTAR GROUP COM 22160N109 1,828 350 23.68 617 -0.80 0.0684
2018-11-02 2018-09-30 13F COSTAR GROUP COM 22160N109 1,478 194 15.11 622 17.36 0.0645
2018-08-02 2018-06-30 13F COSTAR GROUP COM 22160N109 1,284 -20 -1.53 530 12.29 0.0563
2018-05-11 2018-03-31 13F COSTAR GROUP COM 22160N109 1,304 -57 -4.19 472 16.83 0.0501
2018-02-13 2017-12-31 13F COSTAR GROUP COM 22160N109 1,361 374 37.89 404 52.45 0.0403
2017-11-03 2017-09-30 13F COSTAR GROUP COM 22160N109 987 987 265 0.0300
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.