Data spanning the past 90 days through January 10, 2026 reveals that Calix's three principal insider shareholders consist of Director Carl Russo (4.00Mn shares), Director Donald J Listwin (807.53K shares), Director Michael T Everett (196.78K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Carl Russo | 3,996,852 | 08 Jan, 2026 | |
| Donald J Listwin | 807,533 | 04 Aug, 2023 | |
| Michael T Everett | 196,779 | 05 Dec, 2022 | |
| Kevin Robert Peters | 130,717 | 12 May, 2025 | |
| J Daniel Plants | 117,865 | 29 Oct, 2021 | |
| Kevin A Denuccio | 80,000 | 04 May, 2022 | |
| Cory Sindelar | Chief Financial Officer | 76,555 | 12 Nov, 2025 |
| Christopher J Bowick | 66,616 | 12 May, 2025 | |
| Michael Matthews | 64,000 | 03 Nov, 2022 | |
| Kathleen M Crusco | 59,394 | 12 May, 2025 | |
| Kira Makagon | 38,964 | 12 May, 2025 | |
| Michael Weening | President & Ceo | 16,117 | 03 Nov, 2025 |
| Wade Oosterman | 7,189 | 12 May, 2025 | |
| Michael J Berry | 4,689 | 12 May, 2025 | |
| Rajatish Mukherjee | 4,689 | 12 May, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 07 Jan, 2026 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,983,070 | D | M |
| 24 Nov, 2025 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,973,070 | D | M |
| 17 Nov, 2025 | Carl Russo | Common Stock | A | 10,000 | $12.63 | 3,963,070 | D | M |
| 10 Nov, 2025 | Shane Todd Marshall Eleniak | Common Stock | A | 24,000 | $8.03 | 24,000 | D | M |
| 10 Nov, 2025 | Shane Todd Marshall Eleniak | Common Stock | D | 24,000 | $64.14 | 0 | D | S |
| 06 Nov, 2025 | Cory Sindelar | Common Stock | D | 50,000 | $65.30 | 76,555 | D | S |
| 06 Nov, 2025 | Cory Sindelar | Common Stock | A | 50,000 | $5.05 | 126,555 | D | M |
| 06 Nov, 2025 | Carl Russo | - | - | 13,782 | I | |||
| 06 Nov, 2025 | Carl Russo | Common Stock | A | 200,000 | $12.63 | 13,782 | I | M |
| 04 Nov, 2025 | Carl Russo | - | - | 1,707,153 | I | |||
| 04 Nov, 2025 | Carl Russo | Common Stock | D | 12,845 | $66.00 | 1,694,308 | I | S |
| 04 Nov, 2025 | Carl Russo | - | - | 1,694,188 | I | |||
| 04 Nov, 2025 | Carl Russo | Common Stock | D | 12,035 | $65.11 | 1,707,153 | I | S |
| 04 Nov, 2025 | Carl Russo | - | - | 1,719,188 | I | |||
| 04 Nov, 2025 | Carl Russo | Common Stock | D | 395,000 | $64.00 | 1,719,188 | I | S |
| 04 Nov, 2025 | Carl Russo | Common Stock | D | 120 | $66.47 | 1,694,188 | I | S |
| 04 Nov, 2025 | Carl Russo | - | - | 1,694,308 | I | |||
| 04 Nov, 2025 | Shane Todd Marshall Eleniak | Common Stock | D | 50,000 | $65.34 | 0 | D | S |
| 04 Nov, 2025 | Shane Todd Marshall Eleniak | Common Stock | A | 50,000 | $7.00 | 50,000 | D | M |
| 03 Nov, 2025 | Michael Weening | Common Stock | A | 74,000 | $7.84 | 90,117 | D | M |