Comtech Telecommunications Corp
Ownership
Ownership Structure
Who owns Comtech Telecommunications Corp (CMTL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 92.9% of the shares are freely tradable; institutional investors hold 54.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Qvt Financial LP | 5.59 | 1,676,031 | -1.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.36 | 1,306,904 | +9.4 | 06/30/2026 |
| Beacon Pointe Advisors, LLC | 4.16 | 1,246,044 | +0.0 | 06/30/2026 |
| Needham Investment Management, LLC | 3.03 | 906,360 | -22.8 | 06/30/2026 |
| TCW Group Inc | 2.43 | 726,806 | +0.0 | 06/30/2026 |
| MML Investors Services Inc | 2.30 | 689,702 | +76.7 | 06/30/2026 |
| Acadian Asset Management LLC | 2.00 | 599,792 | +48.7 | 06/30/2026 |
| Marshall Wace Asset Management Ltd | 1.85 | 553,248 | -36.2 | 06/30/2026 |
| BlackRock Inc | 1.69 | 505,956 | +4.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.13 | 936,420 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Bondi Michael | Chief Financial Officer | 159,286 | 191,143 $ | Sep 30, 2026 | direct |
| Walther Donald E. | Chief Legal Officer | 77,015 | 92,418 $ | Sep 30, 2026 | direct |
| Robertson Jeffery Paul | President, Allerium Segment | 68,366 | 82,039 $ | Sep 30, 2026 | direct |
| Gizinski Daniel | President, S&S Comm. Segment | 38,563 | 46,276 $ | Sep 30, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 4,011 | 1.37 | 5,495 |
| Sep 30, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 8,893 | – | – |
| Sep 30, 2026 | Robertson Jeffery Paul | President, Allerium Segment | Other | 2,497 | 1.37 | 3,421 |
| Sep 30, 2026 | Robertson Jeffery Paul | President, Allerium Segment | Other | 4,906 | – | – |
| Sep 30, 2026 | Walther Donald E. | Chief Legal Officer | Other | 5,446 | 1.37 | 7,461 |
| Sep 30, 2026 | Walther Donald E. | Chief Legal Officer | Other | 15,946 | – | – |
| Sep 30, 2026 | Bondi Michael | Chief Financial Officer | Other | 9,065 | 1.37 | 12,419 |
| Sep 30, 2026 | Bondi Michael | Chief Financial Officer | Other | 17,756 | – | – |
| Aug 11, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 885 | 1.73 | 1,531 |
| Aug 11, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 1,961 | – | – |
| Aug 11, 2026 | Walther Donald E. | Chief Legal Officer | Other | 2,010 | 1.73 | 3,477 |
| Aug 11, 2026 | Walther Donald E. | Chief Legal Officer | Other | 5,883 | – | – |
| Aug 11, 2026 | Bondi Michael | Chief Financial Officer | Other | 5,269 | 1.73 | 9,115 |
| Aug 11, 2026 | Bondi Michael | Chief Financial Officer | Other | 10,321 | – | – |
| Aug 10, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 127 | 1.72 | 218 |
| Aug 10, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 280 | – | – |
| Aug 10, 2026 | Bondi Michael | Chief Financial Officer | Other | 611 | 1.72 | 1,051 |
| Aug 10, 2026 | Bondi Michael | Chief Financial Officer | Other | 1,196 | – | – |
| Jul 31, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 1,161 | 1.68 | 1,950 |
| Jul 31, 2026 | Gizinski Daniel | President, S&S Comm. Segment | Other | 2,573 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.