Harmonic Inc.
Harmonic Inc. (HLIT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · HLIT · as of Sep 30, 2025
Ownership Breakdown
244
Institutional Holders
▼ 1 vs Q2
$1.02B
Total Inst. Value
▲ $52.82M vs Q2
108.50M
Shares Outstanding
freeFloat 98.20%
99.92M
13F Shares Held
▼ 1.91M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
HLIT largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. radio & tv broadcasting & communications equipment | 19.32M | 16.82% | 16.82% | $196.67B | Nov 12, 2025 | ▲ 2.34M |
VANGUARD GROUP INC radio & tv broadcasting & communications equipment | 11.87M | 10.34% | 10.34% | $120.88B | Nov 7, 2025 | ▲ 11.4K |
STATE STREET CORP radio & tv broadcasting & communications equipment | 4.39M | 3.82% | 3.82% | $44.69B | Nov 14, 2025 | ▲ 77.7K |
DIMENSIONAL FUND ADVISORS LP radio & tv broadcasting & communications equipment | 3.46M | 3.01% | 3.01% | $35.23B | Nov 12, 2025 | ▲ 42.3K |
TRIGRAN INVESTMENTS, INC. radio & tv broadcasting & communications equipment | 3.22M | 2.80% | 2.80% | $32.79B | Nov 12, 2025 | ▼ 371.6K |
D. E. SHAW & CO., INC. radio & tv broadcasting & communications equipment | 3.10M | 2.70% | 2.70% | $31.52B | Nov 14, 2025 | ▲ 889.1K |
GEODE CAPITAL MANAGEMENT, LLC radio & tv broadcasting & communications equipment | 2.81M | 2.45% | 2.45% | $28.59B | Nov 12, 2025 | ▲ 29.4K |
MILLENNIUM MANAGEMENT LLC radio & tv broadcasting & communications equipment | 2.66M | 2.32% | 2.32% | $27.11B | Nov 14, 2025 | ▼ 342.6K |
SCOPIA CAPITAL MANAGEMENT LP radio & tv broadcasting & communications equipment | 2.56M | 2.23% | 2.23% | $26.09B | Nov 14, 2025 | ▼ 469.0K |
ALLIANCEBERNSTEIN L.P. radio & tv broadcasting & communications equipment | 2.41M | 2.10% | 2.10% | $24.50B | Nov 14, 2025 | ▲ 68.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+5.84M shares2
New Positions
first time holders24
Decreased
−7.54M shares0
Sold Out
fully exitedNet shares change (top 50)
1.70M
+5.84M / −7.54M
Net new holders
+2
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
HLIT insider trading · insider activity
Source: SEC Form 4
1
Buy transactions
3
Sell transactions
0.33
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Haltmayer Neven SVP & GM, Video Business | Jun 1, 2026 | Tax Withhold | 1,452 | $15.81 | $23.0K | 140.5K | Form 4 ↗ |
Jankovic Walter Chief Financial Officer | May 22, 2026 | Tax Withhold | 3,335 | $15.20 | $50.7K | 155.5K | Form 4 ↗ |
Glahn Ronald J SVP, Global Sales, Broadband | May 15, 2026 | Tax Withhold | 1,111 | $12.54 | $13.9K | 38.8K | Form 4 ↗ |
Jankovic Walter Chief Financial Officer | May 15, 2026 | Tax Withhold | 9,099 | $12.54 | $114.1K | 152.2K | Form 4 ↗ |
Chu Timothy C General Counsel & SVP, HR | May 15, 2026 | Tax Withhold | 3,475 | $12.54 | $43.6K | 142.5K | Form 4 ↗ |
Haltmayer Neven SVP & GM, Video Business | May 15, 2026 | Tax Withhold | 6,057 | $12.54 | $76.0K | 139.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Harmonic Inc. (HLIT) is primarily owned by institutional investors, who hold approximately 92.1% of total shares outstanding. Company insiders own approximately 1.80%, while retail and public investors account for the remaining 6.10%.
The largest institutional shareholder of Harmonic Inc. is BLACKROCK, INC., holding approximately 19.32 million shares — equal to 16.82% of outstanding shares — as of September 30, 2025.
A total of 244 institutional investors currently hold HLIT stock, with a combined institutional value of approximately $1.02 billion as of the most recent 13F filing period.
Frequently asked questions
HLIT ownershipHarmonic Inc. (HLIT) is primarily owned by institutional investors, who hold approximately 92.1% of shares. The largest shareholder is BLACKROCK, INC. with a 16.82% stake. Company insiders hold 1.80%. Data sourced from SEC Form 13F as of September 30, 2025.