Calix, Inc (CALX) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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