코스타그룹(주)
IT ˙ BIT ˙ US22160N1090
€29.96 ↑2.00 (7.17%)
2026-06-04
주가
SecurityIT:1CSGP / CoStar Group, Inc.
InstitutionBarbara Oil Co.
Latest Disclosed Ownership32,000 shares
Latest Disclosed Value $ 1,290,880
Barbara Oil Co. ownership in 1CSGP / CoStar Group, Inc.

On May 13, 2026 - Barbara Oil Co. filed a 13F-HR form disclosing ownership of 32,000 shares of CoStar Group, Inc. (IT:1CSGP) valued at $1,227,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,000 shares of CoStar Group, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $958,880 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)
2026-05-13 2026-03-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 1,291 -40.03 0.4975
2026-02-17 2025-12-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,152 -20.30 0.7987
2025-11-12 2025-09-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,700 4.94 1.0056
2025-08-13 2025-06-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,573 1.46 1.0113
2025-05-13 2025-03-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,535 10.70 1.0297
2025-02-12 2024-12-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,291 -5.14 0.9496
2024-11-14 2024-09-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,414 1.77 0.9863
2024-08-12 2024-06-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,372 -23.26 1.0371
2024-05-15 2024-03-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 3,091 10.55 1.3064
2024-02-09 2023-12-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,796 13.66 1.2588
2023-11-13 2023-09-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,460 -13.62 1.1659
2023-08-14 2023-06-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,848 29.28 1.3053
2023-05-11 2023-03-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,203 -10.88 1.0557
2023-02-13 2022-12-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,473 10.90 1.1814
2022-11-14 2022-09-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,229 15.31 1.2231
2022-08-11 2022-06-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 1,933 -9.33 1.0023
2022-05-16 2022-03-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,132 -15.70 0.9767
2022-02-11 2021-12-31 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,529 -8.17 1.0930
2021-11-12 2021-09-30 13F COSTAR GROUP COM 22160N109 32,000 0 0.00 2,754 3.92 1.2910
2021-08-09 2021-06-30 13F COSTAR GROUP COM 22160N109 32,000 28,800 900.00 2,650 0.76 1.2220
2021-05-11 2021-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 2,630 -11.09 1.2661
2021-02-16 2020-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 2,958 8.95 1.4889
2020-11-13 2020-09-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 2,715 19.39 1.4854
2020-08-10 2020-06-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 2,274 21.02 1.3162
2020-05-14 2020-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,879 -1.88 1.2543
2020-02-10 2019-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,915 0.90 1.0178
2019-11-12 2019-09-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,898 7.05 1.0741
2019-08-01 2019-06-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,773 18.75 1.0142
2019-05-09 2019-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,493 38.37 0.8855
2019-02-07 2018-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,079 -19.90 0.7292
2018-11-13 2018-09-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,347 2.05 0.7928
2018-08-08 2018-06-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,320 13.70 0.8485
2018-05-11 2018-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 1,161 22.21 0.7543
2018-02-09 2017-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 950 10.72 0.6061
2017-11-13 2017-09-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 858 1.66 0.5928
2017-08-09 2017-06-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 844 27.30 0.6076
2017-05-12 2017-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 663 9.95 0.4917
2017-02-06 2016-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 603 -12.99 0.4686
2016-11-14 2016-09-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 693 -1.00 0.5530
2016-08-08 2016-06-30 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 700 16.28 0.5634
2016-05-10 2016-03-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 602 -8.93 0.5084
2016-02-04 2015-12-31 13F COSTAR GROUP COM 22160N109 3,200 0 0.00 661 19.31 0.5570
2015-11-02 2015-09-30 13F COSTAR GROUP COM 22160N109 3,200 1,000 45.45 554 25.06 0.4911
2015-08-11 2015-06-30 13F COSTAR GROUP COM 22160N109 2,200 0 0.00 443 1.84 0.3691
2015-05-12 2015-03-31 13F COSTAR GROUP COM 22160N109 2,200 0 0.00 435 7.67 0.3564
2015-02-12 2014-12-31 13F COSTAR GROUP COM 22160N109 2,200 2,200 404 0.3279
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.