# COSTAR GROUP INC CALL

COSTAR GROUP INC CALL is a security (CUSIP 22160N909) tracked across SEC portfolio filings. 8 institutional managers reported $33.7M on Form 13F as of 2026-06-30.

## Summary

- Issuer: COSTAR GROUP INC
- Class: CALL
- CUSIP: 22160N909
- 13F holders: 8
- 13F value: $33.7M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [LANDMARK INVESTMENT PARTNERS, L.P.](https://search.stillhousedata.com/firm/329543) | WEST PALM BEACH, FL | $12.3M | — |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $10.9M | — |
| IMC-Chicago, LLC | CHICAGO, IL | $5.1M | — |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $3.9M | — |
| Baer Investment Advisory LLC | CORTE MADERA, CA | $1.2M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $339K | — |
| Itau Unibanco Holding S.A. | Sao Paulo, D5 | $49K | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/22160N909.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.