CSGP — COSTAR GROUP, INC.Today's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
48
all time
Members · 12m
1
4 buys · 1 sells · by trade date
Latest filing
09-10
2026-09-10
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
1
13F holders
650
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 48Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 20 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

20 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in CSGP

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing CSGP in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Gilbert Ray Cisneros, Jr. D–CA-315−$11.0K to $59.0K2

1 member

Congressional disclosures

Newest filed firstAll 48 rows ↗
Latest congressional filings mentioning CSGP
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-09-10Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 08-19 +22d$1K–$15K
2026-05-08Gilbert Ray Cisneros, Jr. D–CA-31SELL partial (partial sale)Traded 04-14 +24d$1K–$15K
2026-04-07Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 03-13 +25d$1K–$15K
2026-02-13Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 01-28 +16d$1K–$15K
2026-01-12Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 2025-12-10 +33d$1K–$15K
2025-11-18Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 10-15 +34d$1K–$15K
2025-10-22Lisa C. McClain R–MI-9SELL SP (spouse-owned)Traded 09-25 +27d$1K–$15K
2025-10-10Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 09-30 +10d$1K–$15K
2025-10-10Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 09-22 +18d$1K–$15K
2025-09-12Lisa C. McClain R–MI-9BUY SP (spouse-owned)Traded 08-13 +30d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

All holders ↗
Top institutional holders of CSGP for quarter 2026-03-31, 1–25 of 650 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date (the full holders view shows them), but no document links — the EDGAR link opens the filer's 13F list·§
1VANGUARD PORTFOLIO MANAGEMENT LLC$1.5B1
derived ·§ EDGAR ↗
2BlackRock, Inc.$1.4B1
derived ·§ EDGAR ↗
3VANGUARD CAPITAL MANAGEMENT LLC$1.1B1
derived ·§ EDGAR ↗
4STATE STREET CORP$752M1
derived ·§ EDGAR ↗
5PRINCIPAL FINANCIAL GROUP INC$714M1
derived ·§ EDGAR ↗
6BAMCO INC /NY/$658M1
derived ·§ EDGAR ↗
7Capital International Investors$626M1
derived ·§ EDGAR ↗
8BAILLIE GIFFORD & CO$549M1
derived ·§ EDGAR ↗
9POLEN CAPITAL MANAGEMENT LLC$507M1
derived ·§ EDGAR ↗
10GEODE CAPITAL MANAGEMENT, LLC$500M1
derived ·§ EDGAR ↗
11AKRE CAPITAL MANAGEMENT LLC$417M1
derived ·§ EDGAR ↗
12Janus Henderson Group Ltd.$312M1
derived ·§ EDGAR ↗
13Invesco Ltd.$288M1
derived ·§ EDGAR ↗
14D. E. Shaw & Co., Inc.$238M1
derived ·§ EDGAR ↗
15MORGAN STANLEY$218M1
derived ·§ EDGAR ↗
16Capital Research Global Investors$176M1
derived ·§ EDGAR ↗
17BANK OF AMERICA CORP /DE/$144M1
derived ·§ EDGAR ↗
18NORTHERN TRUST CORP$138M1
derived ·§ EDGAR ↗
19Meritage Group LP$134M1
derived ·§ EDGAR ↗
20Amundi$132M1
derived ·§ EDGAR ↗
21Legal & General Group Plc$122M1
derived ·§ EDGAR ↗
22BECK MACK & OLIVER LLC$118M1
derived ·§ EDGAR ↗
23CHARLES SCHWAB INVESTMENT MANAGEMENT INC$116M1
derived ·§ EDGAR ↗
24FMR LLC$114M1
derived ·§ EDGAR ↗
25Ensign Peak Advisors, Inc$110M1
derived ·§ EDGAR ↗
Show the top 500 of 650 holders
Truncated by Public Filings. Top 500 of 650 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · CSGP

Congress · last 90 days

Buyers
1 Gilbert Ray Cisneros, Jr. D–CA-31 $1K–$15K
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · COSTAR GROUP INC

Merged timeline of congressional filings and notable-manager moves on CSGP
DateWhoChangeSize
2026-09-10Gilbert Ray Cisneros, Jr. CongressBUY$1K–$15K
2026-05-15Corvex Management 13FNEW+851,734 sh
2026-05-15Gotham Asset Management 13FADD+316,669 sh
2026-05-15Tiger Global Management 13FTRIM−759,109 sh
2026-05-15Third Point 13FEXIT−3,165,000 sh
2026-05-15Viking Global Investors 13FEXIT−1,442,582 sh
2026-05-15Bridgewater Associates 13FEXIT−9,020 sh
2026-05-14Caxton Associates 13FNEW+83,948 sh

8 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)4 buy / 1 sell
Congress net ($ bound)−$11.0K to $59.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.