SILICOM LTD. (SILC) Institutional Ownership Changes & 13F Activity
SILICOM LTD. (SILC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Portolan Capital Management, Llc, Hood River Capital Management Llc, Jane Street Group, Llc, Granahan Investment Management, Llc, and Renaissance Technologies LLC.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +9,506 | — | 9,506 | $455.72K | Q2 2026 | Sep 02, 2026 |
| Centaurus Financial, Inc. | Buy | +2,500 | — | 2,500 | $120.00K | Q2 2026 | Aug 17, 2026 |
| Portolan Capital Management, Llc | Buy | +162,466 | — | 162,466 | $7.79M | Q2 2026 | Aug 14, 2026 |
| Hood River Capital Management Llc | Buy | +157,343 | — | 157,343 | $7.54M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +109,876 | +868.2% | 122,531 | $5.87M | Q2 2026 | Aug 14, 2026 |
| Granahan Investment Management, Llc | Buy | +68,454 | — | 68,454 | $3.28M | Q2 2026 | Aug 14, 2026 |
| Apis Capital Advisors, Llc | Buy | +44,000 | — | 44,000 | $2.11M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +36,624 | +307.1% | 48,551 | $2.33M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +33,802 | +135.1% | 58,815 | $2.82M | Q2 2026 | Aug 14, 2026 |
| First Wilshire Securities Management Inc | Sell | -31,355 | -9.9% | 284,287 | $13.63M | Q2 2026 | Aug 14, 2026 |
| Systematic Financial Management Lp | Sell | -30,984 | -5.8% | 506,475 | $24.28M | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +28,830 | — | 28,830 | $1.38M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +27,927 | — | 27,927 | $1.34M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +11,300 | — | 11,300 | $541.72K | Q2 2026 | Aug 14, 2026 |
| Hsbc Holdings Plc | Buy | +5,194 | — | 5,194 | $249.83K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Buy | +4,072 | +113.1% | 7,672 | $367.79K | Q2 2026 | Aug 14, 2026 |
| Nano Cap New Millennium Growth Fund L P | Sell | -4,000 | -2.1% | 186,500 | $8.94M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -1,083 | -8.3% | 12,006 | $575.57K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Sell | -708 | -19.3% | 2,962 | $142.00K | Q2 2026 | Aug 14, 2026 |
| Jones Financial Companies Lllp | Buy | +57 | — | 57 | $2.34K | Q2 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Buy | +61,363 | +241.2% | 86,800 | $4.16M | Q2 2026 | Aug 13, 2026 |
| Marshall Wace, Llp | Sell | -57,786 | -64.3% | 32,041 | $1.54M | Q2 2026 | Aug 13, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | Buy | +56,596 | +455.7% | 69,016 | $3.31M | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Sell | -52,067 | -50.9% | 50,310 | $2.41M | Q2 2026 | Aug 13, 2026 |
| Bnp Paribas Financial Markets | Buy | +24,366 | +443.0% | 29,866 | $1.43M | Q2 2026 | Aug 13, 2026 |
| Aristides Capital Llc | Buy | +6,976 | — | 6,976 | $334.43K | Q2 2026 | Aug 13, 2026 |
| Arrowstreet Capital, Limited Partnership | Buy | +5,352 | — | 5,352 | $256.57K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +3,133 | +2874.3% | 3,242 | $155.42K | Q2 2026 | Aug 13, 2026 |
| Jpmorgan Chase & Co | Buy | +21,995 | — | 21,995 | $922.25K | Q2 2026 | Aug 12, 2026 |
| American Century Companies Inc | Buy | +6,297 | — | 6,297 | $301.88K | Q2 2026 | Aug 12, 2026 |
Frequently asked questions about SILC activity
Which institutional owners are buying SILC?
Institutional owners buying SILC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SILC activity?
"Buy" means an investor increased their reported position in SILC compared to the prior reporting period. This reflects growing exposure to SILICOM LTD. (SILC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SILC increasing?
Institutional interest in SILC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.