Silicom Ltd.
Silicom Ltd. (SILC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SILC · as of Sep 30, 2025
Ownership Breakdown
29
Institutional Holders
▼ 1 vs Q2
$30.90M
Total Inst. Value
▲ $3.33M vs Q2
5.71M
Shares Outstanding
freeFloat 94.81%
1.74M
13F Shares Held
▼ 34,000 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
SILC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
SYSTEMATIC FINANCIAL MANAGEMENT LP computer communications equipment | 556.2K | 9.79% | 9.79% | $9.86B | Nov 13, 2025 | ▲ 25.8K |
FIRST WILSHIRE SECURITIES MANAGEMENT INC computer communications equipment | 367.6K | 6.47% | 6.47% | $6.51B | Nov 14, 2025 | ▼ 21.8K |
YELIN LAPIDOT HOLDINGS MANAGEMENT LTD. computer communications equipment | 205.7K | 3.62% | 3.62% | $3.64B | Oct 27, 2025 | ▼ 1.0K |
HERALD INVESTMENT MANAGEMENT LTD computer communications equipment | 125.0K | 2.20% | 2.20% | $2.21B | Nov 7, 2025 | NEW |
MORGAN STANLEY computer communications equipment | 101.4K | 1.79% | 1.79% | $1.80B | May 27, 2026 | ▲ 16.4K |
WORTH VENTURE PARTNERS, LLC computer communications equipment | 76.5K | 1.35% | 1.35% | $1.36B | Nov 14, 2025 | ▼ 13.3K |
NORTHERN TRUST CORP computer communications equipment | 46.2K | 81.36% | 81.36% | $818.93M | Nov 14, 2025 | ▼ 14.8K |
ACADIAN ASSET MANAGEMENT LLC computer communications equipment | 43.0K | 75.63% | 75.63% | $759.00M | Nov 13, 2025 | — held |
ACUITAS INVESTMENTS, LLC computer communications equipment | 27.4K | 48.30% | 48.30% | $486.15M | Nov 18, 2025 | ▼ 85.8K |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP computer communications equipment | 24.6K | 43.28% | 43.28% | $435.61M | Nov 13, 2025 | — held |
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
8
Increased
+49.0K shares2
New Positions
first time holders12
Decreased
−146.5K shares3
Sold Out
fully exitedNet shares change (top 50)
97.5K
+49.0K / −146.5K
Net new holders
-5
2 new / 3 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SILC insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
6
Sell transactions
0.00
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 |
|---|---|---|---|---|---|---|---|
Hendel David VP R&D | May 14, 2026 | Sale | 1,000 | $49.00 | $49.0K | 0 | Form 4 ↗ |
Castiel David VP Engineering | May 14, 2026 | Sale | 2,000 | $48.00 | $96.0K | 0 | Form 4 ↗ |
COHEN DANIEL (DC) EVP Operation | May 14, 2026 | Sale | 15 | $52.00 | $780 | 2.0K | Form 4 ↗ |
Hendel David VP R&D | May 13, 2026 | Sale | 500 | $44.50 | $22.3K | 1.5K | Form 4 ↗ |
Hendel David VP R&D | May 13, 2026 | Sale | 500 | $44.24 | $22.1K | 1.0K | Form 4 ↗ |
Hendel David VP R&D | May 7, 2026 | Sale | 500 | $45.00 | $22.5K | 2.0K | Form 4 ↗ |
Eizenman Avinoam director | May 7, 2026 | Sale | 9,023 | $44.66 | $403.0K | 188.7K | Form 4 ↗ |
Eizenman Liron President and CEO | May 7, 2026 | Sale | 8,900 | $45.23 | $402.5K | 15.5K | Form 4 ↗ |
Gilad Eran CFO | May 7, 2026 | Sale | 6,000 | $44.18 | $265.1K | 0 | 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
Silicom Ltd. (SILC) is primarily owned by institutional investors, who hold approximately 30.6% of total shares outstanding. Company insiders own approximately 5.19%, while retail and public investors account for the remaining 64.24%.
The largest institutional shareholder of Silicom Ltd. is SYSTEMATIC FINANCIAL MANAGEMENT LP, holding approximately 556,158 shares — equal to 9.79% of outstanding shares — as of September 30, 2025.
A total of 29 institutional investors currently hold SILC stock, with a combined institutional value of approximately $30,899,734 as of the most recent 13F filing period.
Frequently asked questions
SILC ownershipSilicom Ltd. (SILC) is primarily owned by institutional investors, who hold approximately 30.6% of shares. The largest shareholder is SYSTEMATIC FINANCIAL MANAGEMENT LP with a 9.79% stake. Company insiders hold 5.19%. Data sourced from SEC Form 13F as of September 30, 2025.