# IRHYTHM HOLDINGS INC NOTE  1.500% 9/0

IRHYTHM HOLDINGS INC NOTE  1.500% 9/0 is a security (CUSIP 450056AB2) tracked across SEC portfolio filings. 51 institutional managers reported $611.6M on Form 13F as of 2026-06-30; 6 registered fund positions totaling $25.2M via N-PORT as of 2026-05-29.

## Summary

- Issuer: IRHYTHM HOLDINGS INC
- Class: NOTE  1.500% 9/0
- CUSIP: 450056AB2
- Asset category: DBT
- 13F holders: 51
- 13F value: $611.6M
- 13F period: 2026-06-30
- N-PORT fund positions: 6
- N-PORT value: $25.2M
- N-PORT report: 2026-05-29

## Top institutional holders (Form 13F)

_Showing 15 of 51 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [TENOR CAPITAL MANAGEMENT Co., L.P.](https://search.stillhousedata.com/firm/153277) | NEW YORK, NY | $93.2M | 85,000,000 |
| BlackRock, Inc. | New York, NY | $62.5M | 57,315,000 |
| [WOLVERINE ASSET MANAGEMENT LLC](https://search.stillhousedata.com/firm/138907) | CHICAGO, IL | $51.5M | 47,013,000 |
| STEELHEAD PARTNERS LLC | Seattle, WA | $39.7M | 36,122,000 |
| [Opti Capital Management, LP](https://search.stillhousedata.com/firm/292742) | New York, NY | $38.5M | 35,000,000 |
| [DeepCurrents Investment Group LLC](https://search.stillhousedata.com/firm/288159) | NEW YORK, NY | $37.9M | 34,500,000 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $36.3M | 33,000,000 |
| MacKay Shields LLC | New York, NY | $35.9M | 32,598,000 |
| [LMR Partners LLP](https://search.stillhousedata.com/firm/159639) | LONDON, X0 | $32.9M | 30,000,000 |
| [Tudor Investment Corp Et Al](https://search.stillhousedata.com/firm/159792) | Stamford, CT | $22.0M | 20,000,000 |
| [Jain Global LLC](https://search.stillhousedata.com/firm/330309) | NEW YORK, NY | $16.5M | 15,000,000 |
| STATE STREET CORP | BOSTON, MA | $15.0M | 13,710,000 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | TORONTO, A6 | $14.2M | 13,000,000 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | FRANKFURT AM MAIN, 2M | $14.0M | 12,620,000 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $12.1M | 11,000,000 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [NYLI MacKay Convertible Fund](https://search.stillhousedata.com/fund/S000006899) | NEW YORK LIFE INVESTMENTS FUNDS | $16.6M | 92.06% |
| [Calamos Market Neutral Income Fund](https://search.stillhousedata.com/fund/S000004062) | CALAMOS INVESTMENT TRUST/IL | $5.7M | 3.25% |
| Advent Convertible & Income Fund | ADVENT CONVERTIBLE & INCOME FUND | $2.6M | 43.74% |
| [Virtus Global Allocation Fund](https://search.stillhousedata.com/fund/S000025374) | Virtus Strategy Trust | $268K | 18.30% |
| [Virtus Newfleet Multi-Sector Bond ETF](https://search.stillhousedata.com/fund/S000048895) | ETFis Series Trust I | $37K | 0.87% |
| Virtus Global Multi-Sector Income Fund | Virtus Global Multi-Sector Income Fund | $11K | 1.18% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/450056AB2.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.