Not financial advice. ThetaGrade is educational and informational only. Nothing here is a recommendation to buy or sell any security, and it is not tailored to anyone. Options involve substantial risk; read the OCC Characteristics and Risks of Standardized Options. Past performance does not guarantee future results. Methodology

CSGP government trades

COSTAR GROUP INC. 8 officials filed trades since 2025. CSGP rating

Trades are filed weeks after they happen and amounts are reported as ranges. Educational, not financial advice.

Who traded it

Official	Branch	Buys	Sells	First trade	Latest trade	Latest filing
Donald J Trump	Executive	9	11	2024-06-24	2026-06-23	2026-09-22
Gilbert Ray Cisneros, Jr. D-CA	House	12	1	2025-06-25	2026-08-19	2026-09-10
Arjun Mody	Executive	0	1	2026-01-30	2026-01-30	2026-04-10
Lisa C. McClain R-MI	House	1	1	2025-08-13	2025-09-25	2025-10-22
Jefferson Shreve R-IN	House	1	1	2025-02-24	2025-05-12	2025-06-22
Robert P. Bresnahan, Jr. R-PA	House	0	1	2025-05-15	2025-05-15	2025-05-31
William R. Keating D-MA	House	1	0	2025-01-21	2025-01-21	2025-02-25
Julie Johnson D-TX	House	0	1	2025-01-15	2025-01-15	2025-02-12

Every CSGP trade

Traded	Filed	Days	Official	Stock	Type	Amount	Owner
2024-07-24	2026-09-22	790	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$1K–$15K		Filing ↗
2024-07-08	2026-09-22	806	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-08-19	2026-09-10	22	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2026-06-23	2026-08-22	60	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-06-18	2026-08-22	65	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$100K–$250K		Filing ↗
2026-06-03	2026-08-22	80	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$1K–$15K		Filing ↗
2024-06-24	2026-08-22	789	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$50K–$100K		Filing ↗
2026-05-22	2026-07-01	40	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$50K–$100K		Filing ↗
2026-05-18	2026-07-01	44	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$1K–$15K		Filing ↗
2026-04-28	2026-07-01	64	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-04-20	2026-07-01	72	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$50K–$100K		Filing ↗
2026-04-17	2026-07-01	75	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$100K–$250K		Filing ↗
2026-04-17	2026-07-01	75	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-03-26	2026-05-14	49	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$1K–$15K		Filing ↗
2026-03-18	2026-05-14	57	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$50K–$100K		Filing ↗
2026-02-23	2026-05-14	80	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-02-12	2026-05-14	91	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$1K–$15K		Filing ↗
2026-02-12	2026-05-14	91	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$50K–$100K		Filing ↗
2026-02-10	2026-05-14	93	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$50K–$100K		Filing ↗
2026-01-12	2026-05-14	122	Donald J Trump	CSGP COSTAR GROUP INC	Sell	$1K–$15K		Filing ↗
2026-01-12	2026-05-14	122	Donald J Trump	CSGP COSTAR GROUP INC	BuySold	$50K–$100K		Filing ↗
2026-04-14	2026-05-08	24	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	Partial sell	$1K–$15K	Self	Filing ↗
2026-01-30	2026-04-10	70	Arjun Mody	CSGP CoStar Group, Inc. (CSGP)	Sell	$1K–$15K		Filing ↗
2026-03-13	2026-04-07	25	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2026-01-28	2026-02-13	16	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-12-10	2026-01-12	33	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-10-15	2025-11-18	34	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-09-25	2025-10-22	27	Lisa C. McClain	CSGP CoStar Group, Inc. - Common Stock	Sell	$1K–$15K	Spouse	Filing ↗
2025-09-30	2025-10-10	10	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-09-22	2025-10-10	18	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-08-13	2025-09-12	30	Lisa C. McClain	CSGP CoStar Group, Inc. - Common Stock	BuySold	$1K–$15K	Spouse	Filing ↗
2025-07-31	2025-08-14	14	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-07-09	2025-08-14	36	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-06-30	2025-07-10	10	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-06-27	2025-07-10	13	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$15K–$50K	Self	Filing ↗
2025-06-25	2025-07-10	15	Gilbert Ray Cisneros, Jr.	CSGP CoStar Group, Inc. - Common Stock	BuyTrimmed	$1K–$15K	Self	Filing ↗
2025-05-12	2025-06-22	41	Jefferson Shreve	CSGP CoStar Group, Inc. - Common Stock	Sell	$15K–$50K	Self	Filing ↗
2025-05-15	2025-05-31	16	Robert P. Bresnahan, Jr.	CSGP CoStar Group, Inc. - Common Stock	Sell	$1K–$15K	Self	Filing ↗
2025-02-24	2025-03-09	13	Jefferson Shreve	CSGP CoStar Group, Inc. - Common Stock	BuySold	$15K–$50K	Self	Filing ↗
2025-01-21	2025-02-25	35	William R. Keating	CSGP CoStar Group, Inc. - Common Stock	BuyOpen	$1K–$15K	Self	Filing ↗
2025-01-15	2025-02-12	28	Julie Johnson	CSGP CoStar Group, Inc. - Common Stock	Sell	$1K–$15K	Joint	Filing ↗

CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2024-07-24 · filed 2026-09-22 (790d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2024-07-08 · filed 2026-09-22 (806d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
OpenBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-08-19 · filed 2026-09-10 (22d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2026-06-23 · filed 2026-08-22 (60d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$100K–$250K · traded 2026-06-18 · filed 2026-08-22 (65d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2026-06-03 · filed 2026-08-22 (80d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$50K–$100K · traded 2024-06-24 · filed 2026-08-22 (789d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$50K–$100K · traded 2026-05-22 · filed 2026-07-01 (40d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2026-05-18 · filed 2026-07-01 (44d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2026-04-28 · filed 2026-07-01 (64d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$50K–$100K · traded 2026-04-20 · filed 2026-07-01 (72d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$100K–$250K · traded 2026-04-17 · filed 2026-07-01 (75d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2026-04-17 · filed 2026-07-01 (75d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2026-03-26 · filed 2026-05-14 (49d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$50K–$100K · traded 2026-03-18 · filed 2026-05-14 (57d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2026-02-23 · filed 2026-05-14 (80d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$1K–$15K · traded 2026-02-12 · filed 2026-05-14 (91d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$50K–$100K · traded 2026-02-12 · filed 2026-05-14 (91d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$50K–$100K · traded 2026-02-10 · filed 2026-05-14 (93d) · Filing ↗
CSGP COSTAR GROUP INC
Sell
Donald J Trump
$1K–$15K · traded 2026-01-12 · filed 2026-05-14 (122d) · Filing ↗
CSGP COSTAR GROUP INC
SoldBuy
Donald J Trump
$50K–$100K · traded 2026-01-12 · filed 2026-05-14 (122d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
Partial sell
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-04-14 · filed 2026-05-08 (24d) · Filing ↗
CSGP CoStar Group, Inc. (CSGP)
Sell
Arjun Mody
$1K–$15K · traded 2026-01-30 · filed 2026-04-10 (70d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-03-13 · filed 2026-04-07 (25d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2026-01-28 · filed 2026-02-13 (16d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-12-10 · filed 2026-01-12 (33d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-10-15 · filed 2025-11-18 (34d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
Sell
Lisa C. McClain
$1K–$15K · Spouse · traded 2025-09-25 · filed 2025-10-22 (27d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-09-30 · filed 2025-10-10 (10d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-09-22 · filed 2025-10-10 (18d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
SoldBuy
Lisa C. McClain
$1K–$15K · Spouse · traded 2025-08-13 · filed 2025-09-12 (30d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-07-31 · filed 2025-08-14 (14d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-07-09 · filed 2025-08-14 (36d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-06-30 · filed 2025-07-10 (10d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$15K–$50K · Self · traded 2025-06-27 · filed 2025-07-10 (13d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
TrimmedBuy
Gilbert Ray Cisneros, Jr.
$1K–$15K · Self · traded 2025-06-25 · filed 2025-07-10 (15d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
Sell
Jefferson Shreve
$15K–$50K · Self · traded 2025-05-12 · filed 2025-06-22 (41d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
Sell
Robert P. Bresnahan, Jr.
$1K–$15K · Self · traded 2025-05-15 · filed 2025-05-31 (16d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
SoldBuy
Jefferson Shreve
$15K–$50K · Self · traded 2025-02-24 · filed 2025-03-09 (13d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
OpenBuy
William R. Keating
$1K–$15K · Self · traded 2025-01-21 · filed 2025-02-25 (35d) · Filing ↗
CSGP CoStar Group, Inc. - Common Stock
Sell
Julie Johnson
$1K–$15K · Joint · traded 2025-01-15 · filed 2025-02-12 (28d) · Filing ↗

41 trades