Silicom
Ownership
Ownership Structure
Who owns Silicom (SILC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.4% of the shares are freely tradable; institutional investors hold 31.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Systematic Financial Management LP | 9.35 | 537,459 | -2.5 | 03/31/2026 |
| First Wilshire Securities Mgmt Inc (CA) | 4.95 | 284,287 | -9.9 | 06/30/2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 3.31 | 190,500 | +6.1 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 1.78 | 102,377 | +3.2 | 03/31/2026 |
| Herald Investment Management Ltd | 1.67 | 95,800 | -22.3 | 06/30/2026 |
| Palisades Investment Partners, LLC | 1.57 | 90,281 | +0.0 | 06/30/2026 |
| Marshall Wace Asset Management Ltd | 1.56 | 89,827 | +0.0 | 03/31/2026 |
| Two Sigma Investments LLC | 1.02 | 58,815 | +135.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Hood River International Opp Instl | 2.74 | 157,343 | +0.0 | 06/30/2026 |
| Herald Ord | 2.15 | 123,300 | -1.4 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Eizenman Avinoam | Director | 168,736 | 8,622,410 $ | Aug 17, 2026 | direct |
| Eizenman Liron | President and CEO | 9,928 | 507,321 $ | Aug 12, 2026 | indirect |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 24, 2026 | Orbach Yeshayhu | Director | Sell | 2,969 | 45.00 | 133,605 |
| Aug 17, 2026 | Eizenman Avinoam | Director | Sell | 20,000 | 50.50 | 1,010,000 |
| Aug 12, 2026 | Eizenman Liron | President and CEO | Sell | 18,072 | 48.53 | 877,034 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 28, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.