AKRE CAPITAL MANAGEMENT LLC: COSTAR GROUP INC (CSGP): Quarterly 13F Position History
As of Q1 2026, AKRE CAPITAL MANAGEMENT LLC reported 10,348,273 shares of COSTAR GROUP INC (CSGP), worth $417.4M and representing 6.8% of its 13F equity book. Quarter-over-quarter share count change: + 730,468 (+7.6%) . The position first appeared in Q4 2019 and has been disclosed across 26 13F-HR filings in Pactolio's tracked window.
- 10,348,273Shares Held (Latest Filing)
- $417.4MReported Market Value (Latest Filing)
- 6.8%Portfolio Weight (% of 13F Equity Book)
- +730,468Quarter-over-Quarter Share Change
- -$229.3MQuarter-over-Quarter Value Change
- 10,348,273Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 26 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 10,348,273 | +730,468 | +7.6% | $417.4M | 6.8% | $40.3 |
| Q4 2025 | 9,617,805 | +311,320 | +3.3% | $646.7M | 7.1% | $67.2 |
| Q3 2025 | 9,306,485 | 2,747 | -0.0% | $785.2M | 7.8% | $84.4 |
| Q2 2025 | 9,309,232 | 4,360 | -0.0% | $748.5M | 7.3% | $80.4 |
| Q1 2025 | 9,313,592 | 288 | -0.0% | $737.9M | 7.1% | $79.2 |
| Q4 2024 | 9,313,880 | +379,787 | +4.3% | $666.8M | 5.8% | $71.6 |
| Q3 2024 | 8,934,093 | +163,670 | +1.9% | $674.0M | 5.6% | $75.4 |
| Q2 2024 | 8,770,423 | +1,508,797 | +20.8% | $650.2M | 5.7% | $74.1 |
| Q1 2024 | 7,261,626 | +5,957 | +0.1% | $701.5M | 5.8% | $96.6 |
| Q4 2023 | 7,255,669 | +6,443 | +0.1% | $634.1M | 5.3% | $87.4 |
| Q3 2023 | 7,249,226 | +137,796 | +1.9% | $557.4M | 5.1% | $76.9 |
| Q2 2023 | 7,111,430 | 0 | — | $632.9M | 5.3% | $89.0 |
| Q1 2023 | 7,111,430 | 0 | — | $489.6M | 4.3% | $68.8 |
| Q4 2022 | 7,111,430 | 0 | — | $549.6M | 5.0% | $77.3 |
| Q3 2022 | 7,111,430 | 0 | — | $495.3M | 4.4% | $69.7 |
| Q2 2022 | 7,111,430 | 2,556,750 | -26.4% | $429.6M | 3.4% | $60.4 |
| Q1 2022 | 9,668,180 | 96,170 | -1.0% | $644.0M | 4.5% | $66.6 |
| Q4 2021 | 9,764,350 | +1,350 | +0.0% | $771.7M | 4.5% | $79.0 |
| Q3 2021 | 9,763,000 | 4,600 | -0.0% | $840.2M | 5.2% | $86.1 |
| Q2 2021 | 9,767,600 | +8,790,555 | +899.7% | $809.0M | 5.0% | $82.8 |
| Q1 2021 | 977,045 | +11,084 | +1.1% | $803.0M | 5.5% | $821.9 |
| Q4 2020 | 965,961 | +7,168 | +0.7% | $892.8M | 6.0% | $924.3 |
| Q3 2020 | 958,793 | +3,440 | +0.4% | $813.5M | 5.7% | $848.5 |
| Q2 2020 | 955,353 | +517,041 | +118.0% | $678.9M | 5.1% | $710.7 |
| Q1 2020 | 438,312 | +188,312 | +75.3% | $257.4M | 2.5% | $587.2 |
| Q4 2019 | 250,000 | — | — | $149.6M | 1.4% | $598.3 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did AKRE CAPITAL MANAGEMENT LLC first disclose a CSGP position in 13F-HR filings?
AKRE CAPITAL MANAGEMENT LLC first reported COSTAR GROUP INC (CSGP) on its 13F-HR filing for the period ending 2019-12-31 (Q4 2019). The position has appeared on 26 reported quarters within Pactolio's tracked window.
What was AKRE CAPITAL MANAGEMENT LLC's most recent quarter-over-quarter share-count change in CSGP?
Between Q4 2025 and Q1 2026, AKRE CAPITAL MANAGEMENT LLC added 730,468 shares of CSGP (+7.6%), bringing the total reported position to 10,348,273 shares at a market value of $417.4M.
Does the implied price-per-share represent AKRE CAPITAL MANAGEMENT LLC's cost basis in CSGP?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.