# THIRD HARMONIC BIO INC COM

THIRD HARMONIC BIO INC COM is a security (CUSIP 88427A107) tracked across SEC portfolio filings. 5 institutional managers reported $110K on Form 13F as of 2026-06-30; 7 registered fund positions totaling $4 via N-PORT as of 2026-05-31.

## Summary

- Issuer: THIRD HARMONIC BIO INC
- Class: COM
- CUSIP: 88427A107
- Asset category: EC
- 13F holders: 5
- 13F value: $110K
- 13F period: 2026-06-30
- N-PORT fund positions: 7
- N-PORT value: $4
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [RHUMBLINE ADVISERS](https://search.stillhousedata.com/firm/107151) | BOSTON, MA | $107K | 19,980 |
| [GAMMA Investing LLC](https://search.stillhousedata.com/firm/312573) | FOSTER CITY, CA | $2K | 458 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | 0 |
| SBI Securities Co., Ltd. | TOKYO, M0 | — | 20 |
| [CALDWELL SUTTER CAPITAL, INC.](https://search.stillhousedata.com/firm/10489) | SAUSALITO, CA | — | 1,000 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $2 | 0.00% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1 | 0.00% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $0 | 0.00% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $0 | 0.00% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | — | — |
| [Comstock Capital Value Fund](https://search.stillhousedata.com/fund/S000001057) | Comstock Funds, Inc. | — | — |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | — | — |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/88427A107.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.