ShawSpring Partners LLC — COSTAR GROUP INC CSGP: Quarterly 13F Position History
ShawSpring Partners LLC has reported COSTAR GROUP INC (CSGP) on 6 13F-HR filings in Pactolio's tracked window, first appearing in Q4 2024. As of Q1 2026, the position is sized at 339,081 shares ($13.7M market value, 5.11% of the equity book). Quarter-over-quarter share count change: 618,476 (-64.6%) .
- 339,081Shares Held (Latest Filing)
- $13.7MReported Market Value (Latest Filing)
- 5.11%Portfolio Weight (% of 13F Equity Book)
- 618,476Quarter-over-Quarter Share Change
- -$50.7MQuarter-over-Quarter Value Change
- 1,356,060Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 6 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 339,081 | 618,476 | -64.6% | $13.7M | 5.11% | $40.34 |
| Q4 2025 | 957,557 | +61,523 | +6.9% | $64.4M | 12.12% | $67.24 |
| Q3 2025 | 896,034 | 460,026 | -33.9% | $75.6M | 11.24% | $84.37 |
| Q2 2025 | 1,356,060 | +207,758 | +18.1% | $109.0M | 13.76% | $80.40 |
| Q1 2025 | 1,148,302 | +238,499 | +26.2% | $91.0M | 12.50% | $79.23 |
| Q4 2024 | 909,803 | — | — | $65.1M | 8.63% | $71.59 |
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 ShawSpring Partners LLC first disclose a CSGP position in 13F-HR filings?
ShawSpring Partners LLC first reported COSTAR GROUP INC (CSGP) on its 13F-HR filing for the period ending 2024-12-31 (Q4 2024). The position has appeared on 6 reported quarters within Pactolio's tracked window.
What was ShawSpring Partners LLC's most recent quarter-over-quarter share-count change in CSGP?
Between Q4 2025 and Q1 2026, ShawSpring Partners LLC reduced its CSGP position by 618,476 shares (-64.6%), leaving 339,081 shares at a market value of $13.7M.
Does the implied price-per-share represent ShawSpring Partners 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.