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PICTON MAHONEY ASSET MANAGEMENT

Position in CSGP — Costar Group, Inc.

CIK 1539041 Toronto, A6

Position in CSGP

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,158,401
+$880,028 QoQ
Shares Held
40,904
+888.0% QoQ
Ownership
0.010%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#288
of 749 holders
Holding Since
Mar 2020
20 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSGP Over Time

Shares Held

Position Value (USD)

Derivatives in CSGP

reported options exposure · as of Dec 31, 2025
CallValue
$33,620,000
CallShares
500,000
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Real Estate Services

Real Estate · as of Jun 30, 2026

PICTON MAHONEY ASSET MANAGEMENT holds $55,175,473 across 6 Real Estate Services names. CSGP ranks #3 (2.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CSGP
Costar Group, Inc.
This page
40,904 $1,158,401

All Filings in CSGP

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,158,401 40,904
2025-12-31 $278,373 4,140
2025-12-31 $33,620,000 500,000
2024-06-30 $351,794 4,745
2024-03-31 $445,326 4,610
2023-12-31 $450,932 5,160
2023-09-30 $5,347,238 69,544
2023-06-30 $6,063,926 68,134
2023-03-31 $2,293,737 33,315
2022-12-31 $2,557,968 33,100
2022-09-30 $364,269 5,230
2022-06-30 $352,190 5,830
2022-03-31 $845,947 12,700
2021-12-31 $10,523,634 133,160
2021-09-30 $14,821,683 172,225
2021-06-30 $15,088,147 182,180
2021-03-31 $16,941,618 20,613
2020-12-31 $21,408,173 23,162
2020-09-30 $21,113,474 24,883
2020-06-30 $19,531,343 27,483
2020-03-31 $15,855,257 27,001