Comparable stake leader
Brian Chang
SEC ownership of CYREN Ltd.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001084577.
Disclosed value leader
Brian Chang
Comparable rows
0/18
Latest evidence
15 Dec 2022
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Brian Chang
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
15 Dec 2022
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001084577
- Issuer location
- Herzliya, Israel
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CYREN Ltd. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Brian Chang
Disclosed value leader
Brian Chang
Comparable rows
0/18
Latest evidence
15 Dec 2022
3/4/5
Highest disclosed value: $20,663,046
18 rows are not safely comparable across share classes.
Showing 1-8 of 18 holder rows.
Quick read
Brian Chang has the largest disclosed position value at $20.66M.
0 of 18 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Brian Chang's linked filing trail.
Disclosed position value
Top 5
Brian Chang
$20.66M
Rajveer Kushwaha
$20.66M
Kenneth Tarpey
$484.1K
Eva Lilias Markowitz
$246.5K
Brett M. Jackson
$234.8K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 18 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Brian Chang |
3/4/5
Director
|
—
class O/S missing
|
$20,663,046
32,286,010 shares
|
— | 21 Jul 2021 |
| Rajveer Kushwaha |
3/4/5
Director
|
—
class O/S missing
|
$20,663,046
32,286,010 shares
|
— | 21 Jul 2021 |
| Kenneth Tarpey |
3/4/5
Chief Financial Officer
|
—
class O/S missing
|
$484,096
756,400 shares
|
— | 16 Jun 2021 |
| Eva Lilias Markowitz |
3/4/5
VP, Human Resources
|
—
class O/S missing
|
$246,462
385,097 shares
|
— | 24 Mar 2022 |
| Brett M. Jackson |
3/4/5
Chief Executive Officer, Director
|
—
class O/S missing
|
$234,753
366,801 shares
|
— | 22 Sep 2022 |
| Lior Kohavi |
3/4/5
Chief Strategy Officer
|
—
class O/S missing
|
$61,490
96,078 shares
|
— | 22 Sep 2022 |
| Michael Tamir |
3/4/5
CISO and Vice President
|
—
class O/S missing
|
$41,135
64,273 shares
|
— | 22 Sep 2022 |
| Michael Fleck |
3/4/5
Chief Marketing Officer
|
—
class O/S missing
|
$40,800
63,750 shares
|
— | 22 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 07 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-18 of 18 reporting-owner rows connected to CYREN Ltd.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Brian Chang
Net 12M change
$0
Latest report
15 Dec 2022
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Brian Chang | Director | $20,663,046 | Mixed | 21 Jul 2021 | ||
| Rajveer Kushwaha | Director | $20,663,046 | Mixed | 21 Jul 2021 | ||
| Kenneth Tarpey | Chief Financial Officer | $484,096 | Mixed | 16 Jun 2021 | ||
| Eva Lilias Markowitz | VP, Human Resources | $246,462 | Mixed | 24 Mar 2022 | ||
| Brett M. Jackson | Chief Executive Officer, Director | $234,753 | Mixed | 22 Sep 2022 | ||
| Lior Kohavi | Chief Strategy Officer | $61,490 | Mixed | 22 Sep 2022 | ||
| Michael Tamir | CISO and Vice President | $41,135 | Mixed | 22 Sep 2022 | ||
| Michael Fleck | Chief Marketing Officer | $40,800 | Mixed | 22 Sep 2022 | ||
| Isaac Dvir | Senior VP, Engineering | $38,400 | Mixed | 22 Sep 2022 | ||
| Brian J. Dunn | General Counsel | $37,180 | Filing P/S | 15 Dec 2022 | ||
| Bruce Harold Johnson | Vice President of Sales | $30,400 | Mixed | 22 Sep 2022 | ||
| James A. Hamilton | Director | $20,480 | Mixed | 22 Sep 2022 | ||
| P. Brady Hayden | Principal Accounting Officer | $19,840 | Mixed | 22 Sep 2022 | ||
| Hila Karah | Director | $16,126 | Mixed | 22 Sep 2022 | ||
| David William Earhart | Director | $14,816 | Mixed | 22 Sep 2022 | ||
| John Charles Becker | Director | $13,920 | Mixed | 22 Sep 2022 | ||
| Lauren Zletz | Director | $13,600 | Mixed | 22 Sep 2022 | ||
| Cary Davis | Director | $13,600 | Mixed | 22 Sep 2022 |
Recent insider transactions for CYREN Ltd.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.