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 Mar 31, 2025
Ownership Breakdown
253
Institutional Holders
▲ 18 vs Q4
$1.01B
Total Inst. Value
▼ $454.24M vs Q4
108.50M
Shares Outstanding
freeFloat 98.20%
105.12M
13F Shares Held
▼ 5.45M vs Q4
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
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. radio & tv broadcasting & communications equipment | 17.55M | 15.09% | 15.09% | $168.32B | May 2, 2025 | ▼ 405.2K |
VANGUARD GROUP INC radio & tv broadcasting & communications equipment | 11.47M | 9.86% | 9.86% | $110.04B | May 9, 2025 | ▲ 411.4K |
INVESCO LTD. radio & tv broadcasting & communications equipment | 8.08M | 6.95% | 6.95% | $77.50B | May 12, 2025 | ▲ 292.6K |
STATE STREET CORP radio & tv broadcasting & communications equipment | 4.51M | 3.88% | 3.88% | $43.29B | May 15, 2025 | ▼ 107.7K |
TRIGRAN INVESTMENTS, INC. radio & tv broadcasting & communications equipment | 4.09M | 3.52% | 3.52% | $39.24B | May 13, 2025 | ▼ 887.6K |
SCOPIA CAPITAL MANAGEMENT LP radio & tv broadcasting & communications equipment | 3.43M | 2.95% | 2.95% | $33.33B | May 15, 2025 | ▼ 2.38M |
MILLENNIUM MANAGEMENT LLC radio & tv broadcasting & communications equipment | 3.33M | 2.86% | 2.86% | $31.95B | May 15, 2025 | ▼ 1.39M |
DIMENSIONAL FUND ADVISORS LP radio & tv broadcasting & communications equipment | 3.19M | 2.74% | 2.74% | $30.56B | May 13, 2025 | ▼ 52.5K |
ALYESKA INVESTMENT GROUP, L.P. radio & tv broadcasting & communications equipment | 3.08M | 2.65% | 2.65% | $29.52B | May 15, 2025 | ▲ 2.33M |
GEODE CAPITAL MANAGEMENT, LLC radio & tv broadcasting & communications equipment | 2.76M | 2.37% | 2.37% | $26.46B | May 13, 2025 | ▲ 90.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
28
Increased
+9.46M shares2
New Positions
first time holders19
Decreased
−7.96M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.50M
+9.46M / −7.96M
Net new holders
+11
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 96.9% of total shares outstanding. Company insiders own approximately 1.80%, while retail and public investors account for the remaining 1.31%.
The largest institutional shareholder of Harmonic Inc. is BLACKROCK, INC., holding approximately 17.55 million shares — equal to 15.09% of outstanding shares — as of March 31, 2025.
A total of 253 institutional investors currently hold HLIT stock, with a combined institutional value of approximately $1.01 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 96.9% of shares. The largest shareholder is BLACKROCK, INC. with a 15.09% stake. Company insiders hold 1.80%. Data sourced from SEC Form 13F as of March 31, 2025.