# HARMONIC INC COM

HARMONIC INC COM is a security (CUSIP 413160102) tracked across SEC portfolio filings. 259 institutional managers reported $876.4M on Form 13F as of 2026-06-30; 21 registered fund positions totaling $49.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: HARMONIC INC
- Class: COM
- CUSIP: 413160102
- Asset category: EC
- 13F holders: 259
- 13F value: $876.4M
- 13F period: 2026-06-30
- N-PORT fund positions: 21
- N-PORT value: $49.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 259 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $172.1M | 19,165,249 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $118.9M | 12,022,963 |
| STATE STREET CORP | BOSTON, MA | $43.7M | 4,860,952 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $33.0M | 3,673,398 |
| [Trigran Investments, Inc.](https://search.stillhousedata.com/firm/155200) | NORTHBROOK, IL | $28.9M | 3,216,835 |
| D. E. Shaw & Co., Inc. | New York, NY | $27.9M | 3,101,896 |
| Leeward Investments, LLC - MA | BOSTON, MA | $27.2M | 1,665,067 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $25.1M | 2,794,248 |
| [First Eagle Investment Management, LLC](https://search.stillhousedata.com/firm/108260) | NEW YORK, NY | $23.6M | 1,446,133 |
| [Silverberg Bernstein Capital Management LLC](https://search.stillhousedata.com/firm/327151) | ARMONK, NY | $21.4M | 1,309,257 |
| [ALLIANCEBERNSTEIN L.P.](https://search.stillhousedata.com/firm/108477) | NASHVILLE, TN | $20.4M | 2,057,760 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $19.7M | 2,196,469 |
| MORGAN STANLEY | NEW YORK, NY | $15.2M | 1,687,418 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $13.0M | 1,445,279 |
| Nuveen, LLC | CHARLOTTE, NC | $12.3M | 1,367,701 |

## Top fund holders (N-PORT)

_Showing 15 of 21 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $11.3M | 1.38% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $8.6M | 4.92% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $6.6M | 3.05% |
| [AB Small Cap Value Portfolio](https://search.stillhousedata.com/fund/S000045542) | AB CAP FUND, INC. | $6.3M | 106.37% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $4.6M | 6.20% |
| ROYCE SMALL-CAP TRUST, INC. | ROYCE SMALL-CAP TRUST, INC. | $2.3M | 10.50% |
| [Small Cap Core Portfolio](https://search.stillhousedata.com/fund/S000051867) | Bernstein Fund Inc | $1.9M | 26.26% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.6M | 3.37% |
| [Keeley Small Cap Fund](https://search.stillhousedata.com/fund/S000001085) | Teton Westwood Funds | $1.5M | 177.84% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.2M | 12.21% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $1.1M | 15.04% |
| [BNY Mellon Smallcap Stock Index Fund](https://search.stillhousedata.com/fund/S000000132) | BNY MELLON INDEX FUNDS, INC. | $648K | 7.65% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $549K | 0.09% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $435K | 0.14% |
| Gabelli Equity Trust Inc | Gabelli Equity Trust Inc | $341K | 1.97% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/413160102.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.