CALX's three largest insider shareholders as of June 09, 2026 are Carl Russo (Chairman, 3.95Mn shares), Carl Russo (President And Ceo, 1.67Mn shares), Kevin Robert Peters (Director, 130.72K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Christopher J Bowick | - | 66,616 | 0 | 12 May, 2025 |
| Michael J Berry | - | 4,689 | 0 | 12 May, 2025 |
| Carl Russo | Chairman | 3,953,070 | 0 | 10 Apr, 2026 |
| Michael Matthews | - | 64,000 | 0 | 03 Nov, 2022 |
| Kira Makagon | - | 38,964 | 0 | 12 May, 2025 |
| Wade Oosterman | - | 7,189 | 0 | 12 May, 2025 |
| Kevin Robert Peters | - | 130,717 | 0 | 12 May, 2025 |
| J Daniel Plants | - | 0 | 117,865 | 29 Oct, 2021 |
| Michael Weening | President Ceo | 16,556 | 0 | 17 Feb, 2026 |
| Rajatish Mukherjee | - | 4,689 | 0 | 12 May, 2025 |
| John Durocher | Coo | 2,367 | 0 | 17 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Apr, 2026 | Carl Russo | Common Stock | D | 40,000 | $0.00 | 3,953,070 | D | G |
| 08 Apr, 2026 | Carl Russo | Common Stock | D | 40,000 | $0.00 | 3,953,070 | D | G |
| 30 Mar, 2026 | Carl Russo | Stock Options (right to buy) | A | 11,753 | $0.00 | 11,753 | D | A |
| 30 Mar, 2026 | Carl Russo | Stock Options (right to buy) | A | 11,753 | $0.00 | 11,753 | D | A |
| 30 Mar, 2026 | Carl Russo | Stock Options (right to buy) | A | 11,753 | $0.00 | 11,753 | D | A |
| 25 Feb, 2026 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,993,070 | D | M |
| 25 Feb, 2026 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,993,070 | D | M |
| 25 Feb, 2026 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,993,070 | D | M |
| 25 Feb, 2026 | Carl Russo | Stock Option (right to buy) | D | 10,000 | $0.00 | 560,000 | D | M |
| 25 Feb, 2026 | Carl Russo | Stock Option (right to buy) | D | 10,000 | $0.00 | 560,000 | D | M |
| 25 Feb, 2026 | Carl Russo | Stock Option (right to buy) | D | 10,000 | $0.00 | 560,000 | D | M |
| 14 Feb, 2026 | Michael Weening | Common Stock | A | 439 | $45.32 | 16,556 | D | A |
| 12 Feb, 2026 | Shane Todd Marshall Eleniak | Stock Option | A | 195,000 | $0.00 | 195,000 | D | A |
| 12 Feb, 2026 | Shane Todd Marshall Eleniak | Stock Option | A | 195,000 | $0.00 | 195,000 | D | A |
| 14 Feb, 2026 | Michael Weening | Common Stock | A | 439 | $45.32 | 16,556 | D | A |
| 14 Feb, 2026 | John Durocher | Common Stock | A | 439 | $45.32 | 2,367 | D | A |
| 14 Feb, 2026 | Michael Weening | Common Stock | A | 439 | $45.32 | 16,556 | D | A |
| 14 Feb, 2026 | John Durocher | Common Stock | A | 439 | $45.32 | 2,367 | D | A |
| 12 Feb, 2026 | Shane Todd Marshall Eleniak | Stock Option | A | 195,000 | $0.00 | 195,000 | D | A |
| 14 Feb, 2026 | John Durocher | Common Stock | A | 439 | $45.32 | 2,367 | D | A |