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<title>Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights</title>
<link href="http://www.insiderinsights.com/news/company/csgp" ></link>
<id>urn:uuid:b33655b2-7aae-3994-02b8-70942dd190c5</id>
<updated>2026-08-12T07:12:55-04:00</updated>
<author>Jonathan Moreland</author>
<subtitle>Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services</subtitle>
<entry>
<title>CSGP: CANN CYNTHIA CAMMETT (CAO) Sold (S) 4,788 Shares of COSTAR GROUP INC for $30.78 on 8/7</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6451331" ></link>
<id>urn:uuid:b7ce2696-eb20-41af-bc3b-01b14705c2df</id>
<updated>2026-08-10T16:06:41-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: HILL JOHN W (DIR) Sold (S) 3,500 Shares of COSTAR GROUP INC for $30.21 on 8/5</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6451332" ></link>
<id>urn:uuid:dd530844-e0a3-9527-7a9d-b415cfc88663</id>
<updated>2026-08-10T16:06:33-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: FLORANCE ANDREW C (F,CEO,DIR) Bought (B) 83,300 Shares of COSTAR GROUP INC for $29.89 on 8/4</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6448940" ></link>
<id>urn:uuid:09b8703c-101c-ad6d-2d52-c3da47d324cf</id>
<updated>2026-08-05T09:27:00-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: CANN CYNTHIA CAMMETT (CAO) Disposed (JS) 1,077 Shares of COSTAR GROUP INC for $28.76 on 8/1</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6448509" ></link>
<id>urn:uuid:87d532ea-2943-45e8-f0c3-02e831dcad91</id>
<updated>2026-08-04T17:24:43-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: SAINT FREDERICK G (PR) Disposed (JS) 1,436 Shares of COSTAR GROUP INC for $28.76 on 8/1</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6448514" ></link>
<id>urn:uuid:24f0ef64-b96f-3696-274b-b0d28a8a8e33</id>
<updated>2026-08-04T17:24:37-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: ROSSMANN ROBIN JACK (CFO) Filed a Form 3, Becoming a Registered Insider at COSTAR GROUP INC With Initial Direct Holdings of 86,691</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6448488" ></link>
<id>urn:uuid:5ff2ac22-d41c-6d14-9ac0-1690b4510296</id>
<updated>2026-08-04T17:22:32-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: LOWN CHRISTIAN M (CFO) Disposed (JS) 5,597 Shares of COSTAR GROUP INC for $29.36 on 7/1</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6437975" ></link>
<id>urn:uuid:2e7d21e6-a4e6-b1b7-f5b7-36b41c221ef5</id>
<updated>2026-07-06T16:05:32-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: GLASER RACHEL C (DIR) Acquired (JB) 8,262 Shares of COSTAR GROUP INC for $0.00 on 6/23</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6432226" ></link>
<id>urn:uuid:5242df74-d648-bd6d-9546-105f9d248303</id>
<updated>2026-06-24T21:14:03-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: BERISFORD JOHN L (DIR) Acquired (JB) 8,262 Shares of COSTAR GROUP INC for $0.00 on 6/23</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6432227" ></link>
<id>urn:uuid:9d557aeb-fc9a-0918-2e09-7cfeac2cbcca</id>
<updated>2026-06-24T21:13:57-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
<entry>
<title>CSGP: HILL JOHN W (DIR) Acquired (JB) 8,262 Shares of COSTAR GROUP INC for $0.00 on 6/23</title>
<link href="http://www.insiderinsights.com/company/csgp/costar-group-inc/id-6432228" ></link>
<id>urn:uuid:4a29e85e-f53c-1f7f-5ac9-8debd6a1ca15</id>
<updated>2026-06-24T21:13:51-04:00</updated>
<summary type="html" ><![CDATA[COSTAR GROUP INC (CSGP). Recent Price: $30.24. Mkt Cap:12.3B. 10D Vol: 9.0mm]]></summary>
</entry>
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