# COGENT BIOSCIENCES INC 1.625 11/15/2031 SDBCV

COGENT BIOSCIENCES INC 1.625 11/15/2031 SDBCV is a security (CUSIP 19240QAA0) tracked across SEC portfolio filings. 25 institutional managers reported $257.5M on Form 13F as of 2026-06-30; 13 registered fund positions totaling $23.7M via N-PORT as of 2026-05-29.

## Summary

- Issuer: COGENT BIOSCIENCES INC 1.625 11/15/2031
- Class: SDBCV
- CUSIP: 19240QAA0
- Asset category: DBT
- 13F holders: 25
- 13F value: $257.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 13
- N-PORT value: $23.7M
- N-PORT report: 2026-05-29

## Top institutional holders (Form 13F)

_Showing 15 of 25 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Linden Advisors LP | New York, NY | $106.2M | 86,765,000 |
| [WOLVERINE ASSET MANAGEMENT LLC](https://search.stillhousedata.com/firm/138907) | CHICAGO, IL | $36.3M | 29,500,000 |
| Jump Financial, LLC | Chicago, IL | $31.9M | 26,000,000 |
| [Calamos Advisors LLC](https://search.stillhousedata.com/firm/105758) | NAPERVILLE, IL | $21.5M | 17,414,000 |
| OAKTREE CAPITAL MANAGEMENT LP | LOS ANGELES, CA | $12.5M | 10,221,000 |
| [Affinity Asset Advisors, LLC](https://search.stillhousedata.com/firm/312788) | New York, NY | $8.6M | 7,000,000 |
| ADVENT CAPITAL MANAGEMENT /DE/ | NEW YORK, NY | $5.5M | 4,470,000 |
| [SSI INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/104889) | Los Angeles, CA | $5.5M | 4,453,000 |
| [Polar Capital Holdings Plc](https://search.stillhousedata.com/firm/136133) | London, X0 | $4.6M | 3,700,000 |
| JANUS HENDERSON GROUP PLC | LONDON, X0 | $4.5M | 3,655,000 |
| Wellesley Asset Management | WELLESLEY, MA | $3.3M | 4,625,000 |
| Jefferies Financial Group Inc. | NEW YORK, NY | $3.0M | 2,411,000 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $2.4M | 2,000,000 |
| [GABELLI FUNDS LLC](https://search.stillhousedata.com/firm/104949) | RYE, NY | $2.3M | 1,900,000 |
| [Ares Systematic Credit Ltd](https://search.stillhousedata.com/firm/307090) | LONDON, X0 | $2.1M | 1,800,000 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| CALAMOS STRATEGIC TOTAL RETURN FUND | CALAMOS STRATEGIC TOTAL RETURN FUND | $10.8M | 30.92% |
| CALAMOS CONVERTIBLE & HIGH INCOME FUND | CALAMOS CONVERTIBLE & HIGH INCOME FUND | $2.2M | 21.59% |
| CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | $2.1M | 21.68% |
| Calamos Dynamic Convertible & Income Fund | Calamos Dynamic Convertible & Income Fund | $1.8M | 25.84% |
| Bancroft Fund Ltd | Bancroft Fund Ltd | $1.7M | 124.38% |
| Ellsworth Growth & Income Fund Ltd | Ellsworth Growth & Income Fund Ltd | $1.7M | 100.51% |
| Gabelli Convertible & Income Securities Fund Inc | Gabelli Convertible & Income Securities Fund Inc | $1.2M | 147.02% |
| Calamos Global Dynamic Income Fund | Calamos Global Dynamic Income Fund | $982K | 16.30% |
| Advent Convertible & Income Fund | ADVENT CONVERTIBLE & INCOME FUND | $899K | 15.12% |
| CALAMOS GLOBAL TOTAL RETURN FUND | CALAMOS GLOBAL TOTAL RETURN FUND | $230K | 16.25% |
| [Calamos Growth & Income Portfolio](https://search.stillhousedata.com/fund/S000006427) | CALAMOS ADVISORS TRUST/IL | $32K | 10.07% |
| [Franklin Alternative Strategies Fund](https://search.stillhousedata.com/fund/S000042023) | Franklin Alternative Strategies Funds | $25K | 0.42% |
| Fidelity Multi-Strategy Credit Fund | Fidelity Multi-Strategy Credit Fund | $12K | 2.16% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/19240QAA0.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.