# CALAMOS ETF TR S&P 500 STRUCTRD

CALAMOS ETF TR S&P 500 STRUCTRD is a security (CUSIP 12811T704) tracked across SEC portfolio filings. 22 institutional managers reported $20.9M on Form 13F as of 2026-06-30.

## Summary

- Issuer: CALAMOS ETF TR
- Class: S&P 500 STRUCTRD
- CUSIP: 12811T704
- 13F holders: 22
- 13F value: $20.9M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

_Showing 15 of 22 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Calamos Advisors LLC](https://search.stillhousedata.com/firm/105758) | NAPERVILLE, IL | $9.6M | 345,822 |
| [Calamos Wealth Management LLC](https://search.stillhousedata.com/firm/143490) | NAPERVILLE, IL | $2.7M | 98,636 |
| [LPL Financial LLC](https://search.stillhousedata.com/firm/6413) | FORT MILL, SC | $1.4M | 50,859 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $1.3M | 49,432 |
| [COMMONWEALTH EQUITY SERVICES, LLC](https://search.stillhousedata.com/firm/8032) | WALTHAM, MA | $1.3M | 47,225 |
| [Blue Water Asset Management](https://search.stillhousedata.com/firm/175362) | GRAND RAPIDS, MI | $1.1M | 37,962 |
| [Grantvest Financial Group LLC](https://search.stillhousedata.com/firm/310272) | MATAWAN, NJ | $933K | 34,683 |
| [OLD MISSION CAPITAL LLC](https://search.stillhousedata.com/firm/146991) | CHICAGO, IL | $685K | 25,460 |
| Camelot Portfolios, LLC | Maumee, OH | $647K | 23,302 |
| TrustBank | OLNEY, IL | $610K | 21,990 |
| [J.W. COLE ADVISORS, INC.](https://search.stillhousedata.com/firm/112294) | TAMPA, FL | $298K | 10,720 |
| [Investment Partners Asset Management, Inc.](https://search.stillhousedata.com/firm/121812) | METUCHEN, NJ | $227K | 8,176 |
| [HARBOUR INVESTMENTS, INC.](https://search.stillhousedata.com/firm/19258) | MADISON, WI | $55K | 2,063 |
| OSAIC HOLDINGS, INC. | PHOENIX, AZ | $30K | 1,100 |
| [Steward Partners Investment Advisory, LLC](https://search.stillhousedata.com/firm/283004) | NEW YORK, NY | $22K | 824 |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/12811T704.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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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.