CIK 0001057352
CSGP COSTAR GROUP, INC.
Insider trading from SEC Form 4. Last filing Dec 12, 2024.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
5
with a Form 4 at this company
Signals
Open-market buys and sells at COSTAR GROUP, INC., scored.
| Score | Side | Insider | Value | Shares | Holdings change | Price context | Filed |
|---|---|---|---|---|---|---|---|
| 47Moderate | sell 3 | Hill John W director | $210k | 2,735 | -14% | - | |
| 41Moderate | sell 3 | NASSETTA CHRISTOPHER J director | $135k | 1,681 | -1% | - | |
| 47Moderate | sell 3 | DESMARAIS MICHAEL J Chief Human Resources Officer | $439k | 5,500 | -9% | - | |
| 50Moderate | buy | FLORANCE ANDREW C President and CEO | $1.1M | 14,731 | +1% | - | |
| 40Moderate | sell | KLEIN MICHAEL R director | $5.4M | 71,633 | -4% | - |
Congressional trades
20 trades in CSGP disclosed by members of Congress under the STOCK Act. All congressional trades.
| Member | Type | Asset | Amount | Traded | Filed |
|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Aug 19, 2026 | 22 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Partial sale | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Apr 14, 2026 | 24 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Mar 13, 2026 | 25 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jan 28, 2026 | 16 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Dec 10, 2025 | 33 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Oct 15, 2025 | 34 days after the trade |
| Lisa C. McClain House · R-MI | Sale | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Sep 25, 2025 | 27 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Sep 30, 2025 | 10 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Sep 22, 2025 | 18 days after the trade |
| Lisa C. McClain House · R-MI | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Aug 13, 2025 | 30 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jul 31, 2025 | 14 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jul 9, 2025 | 36 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $15k to $50k | Jun 27, 2025 | 13 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jun 30, 2025 | 10 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jun 25, 2025 | 15 days after the trade |
| Jefferson Shreve House · R-IN | Sale | CSGP CoStar Group, Inc. - Common Stock | $15k to $50k | May 12, 2025 | 41 days after the trade |
| Robert P. Bresnahan, Jr. House · R-PA | Sale | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | May 15, 2025 | 16 days after the trade |
| Jefferson Shreve House · R-IN | Purchase | CSGP CoStar Group, Inc. - Common Stock | $15k to $50k | Feb 24, 2025 | 13 days after the trade |
| William R. Keating House · D-MA | Purchase | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jan 21, 2025 | 35 days after the trade |
| Julie Johnson House · D-TX | Sale | CSGP CoStar Group, Inc. - Common Stock | $1,001 to $15k | Jan 15, 2025 | 28 days after the trade |
Transactions
The last 8 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 10, 2024 | KLEIN MICHAEL R director | GGift Common Stock, par value $0.01 per share | -64,909 | $0.00 | $0 | 1,848,592 | Dec 12, 2024 |
| Dec 10, 2024 | Hill John W director | SOpen-market sale Common Stock, par value $0.01 per share | -2,735 | $76.76 | $210k | 17,499 | Dec 12, 2024 |
| Dec 10, 2024 | Hill John W director | GGift Common Stock, par value $0.01 per share | -195 | $0.00 | $0 | 17,304 | Dec 12, 2024 |
| Nov 27, 2024 | NASSETTA CHRISTOPHER J director | SOpen-market sale Common Stock, par value $0.01 per share | -1,681 | $80.39 | $135k | 229,715 | Dec 2, 2024 |
| Nov 26, 2024 | DESMARAIS MICHAEL J Chief Human Resources Officer | SOpen-market sale Common Stock, par value $0.01 per share | -5,500 | $79.88 | $439k | 58,798 | Nov 27, 2024 |
| Oct 25, 2024 | FLORANCE ANDREW C President and CEO | POpen-market purchase Common Stock, par value $0.01 per share | +14,731 | $74.67 | $1.1M | 1,263,098 | Oct 28, 2024 |
| Oct 25, 2024 | KLEIN MICHAEL R director | GGift Common Stock, par value $0.01 per share | -5,872 | $0.00 | $0 | 1,985,134 | Oct 28, 2024 |
| Oct 25, 2024 | KLEIN MICHAEL R director | SOpen-market sale Common Stock, par value $0.01 per share | -71,633 | $74.69 | $5.4M | 1,913,501 | Oct 28, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- DESMARAIS MICHAEL JChief Human Resources Officer
- FLORANCE ANDREW CPresident and CEO
- Hill John Wdirector
- KLEIN MICHAEL Rdirector
- NASSETTA CHRISTOPHER Jdirector
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.