Corporate Board Profile
Tech Score: 7/100
1 mention(s) identify DON LISTWIN as having software/technology expertise.
| Company | Filing Date | Evidence | Reason |
|---|---|---|---|
| CALIX, INC | 2021-04-01 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software.” | He has direct experience leading software companies, including serving as CEO of Sana Security and Openwave Systems, and the filing says he served on boards of software companies. That indicates software-adjacent technical exposure, though not necessarily that he can personally write code. |
| Filing Date | Source Excerpt |
|---|---|
| 2011-04-11 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company ... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software.” |
| 2012-04-09 | "From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software." |
| 2013-04-08 | "From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... Mr. Listwin holds... a Bachelor of Science degree in Electrical Engineering from the University of Saskatchewan." |
| 2014-04-07 | "Mr. Listwin holds an honorary Doctorate of Law degree from the University of Saskatchewan and a Bachelor of Science degree in Electrical Engineering from the University of Saskatchewan." |
| 2015-04-07 | "From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company..." |
| 2016-04-05 | "Mr. Listwin brings over 30 years of experience in the networking industry to Calix's board of directors... Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... [and] Openwave Systems Inc., a leader in mobile internet infrastructure software." |
| 2017-04-04 | "From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company..." |
| 2018-04-03 | "Mr. Listwin has served as chairman of our Board since July 2007, and brings over 30 years of experience in the networking industry... served as chief executive officer of Sana Security, Inc., a security software company..." |
| 2019-04-02 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software... Mr. Listwin holds... a Bachelor of Science in Electrical Engineering.” |
| 2020-04-01 | "From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software... Mr. Listwin holds... a Bachelor of Science in Electrical Engineering" |
| 2021-04-01 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software.” |
| 2022-04-01 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software.” |
| 2023-03-31 | “From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company... From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software.” |
| 2024-03-28 | "Mr. Listwin is 'independent' as defined under the rules of the NYSE and has significant executive leadership, strategic and operational experience including multiple executive leadership roles at large publicly-traded technology companies." |
Source material: SEC submissions metadata and DEF 14A proxy filings from EDGAR. Last updated: 2026-04-14