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Zisapel heirs disclose 14% Radcom (RDCM) ownership stake

Filing Impact
(High)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Radcom Ltd shareholders Michael and Klil Zisapel filed Amendment No. 4 to their Schedule 13D, updating their joint ownership position. Together they now beneficially own 2,294,738 Ordinary Shares, representing approximately 14.0% of Radcom’s 16,405,788 shares outstanding as of October 20, 2025.

Each sibling beneficially owns 1,147,369 shares, or about 7.0% of the company. The stake arises from the illness and death of their father, co‑founder and major shareholder Zohar Zisapel, and related transfers through Lomsha Ltd. and Michael & Klil Holdings (93) Ltd., with no cash consideration paid.

The Zisapels state they hold the shares for investment purposes but may buy more, hold, or sell over time. They may also engage with management, the board, and other shareholders regarding Radcom’s business, governance, structure, or potential transactions. No transactions in the shares occurred in the last 60 days.

Positive

  • None.

Negative

  • None.





If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D




Comment for Type of Reporting Person:
Items 7,8,9,10,11 and 13: See Item 5. Items 7,9 and 11: Includes options to acquire 2,248 Ordinary Shares exercisable currently or within 60 days of February 23, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
Items 7,8,9,10,11 and 13: See Item 5. Items 7,9 and 11: Includes options to acquire 2,249 Ordinary Shares exercisable currently or within 60 days of February 23, 2026.


SCHEDULE 13D


Zisapel Michael
Signature:/s/ Michael Zisapel
Name/Title:Michael Zisapel
Date:02/24/2026
KLIL ZISAPEL
Signature:/s/ Klil Zisapel
Name/Title:Klil Zisapel
Date:02/24/2026

FAQ

What ownership stake in Radcom (RDCM) do Michael and Klil Zisapel report?

Michael and Klil Zisapel report beneficial ownership of 2,294,738 Radcom Ordinary Shares, representing about 14.0% of shares outstanding. Each sibling holds 1,147,369 shares, or roughly 7.0%, based on 16,405,788 shares outstanding as of October 20, 2025.

How did the Zisapels acquire their Radcom (RDCM) shares in this Schedule 13D/A?

The Zisapels acquired their Radcom stake through the illness and death of their father, co‑founder Zohar Zisapel. Transfers included interests in Lomsha Ltd. and Michael & Klil Holdings (93) Ltd., and were made without any cash consideration paid by the reporting persons.

What are Michael and Klil Zisapel’s intentions for their Radcom (RDCM) investment?

They hold Radcom securities for investment purposes and plan to review their position on an ongoing basis. They may acquire additional shares, retain their holdings, or sell portions, and may engage with management, the board, other shareholders, or third parties about Radcom’s business and governance.

Have the Zisapels recently traded Radcom (RDCM) shares before this amendment?

The filing states that during the last 60 days the reporting persons have effected no transactions in Radcom Ordinary Shares. The amendment instead reflects updated ownership following estate transfers and corporate holdings rather than recent market or private share purchases or sales.

How is voting and dispositive power over Radcom (RDCM) shares structured for the Zisapels?

Michael and Klil each have sole voting and dispositive power over about 1.73 million Radcom shares and shared power over 542,147 shares held via Lomsha Ltd. and Michael & Klil Holdings (93) Ltd. As a potential group, they may share power over 2,294,738 shares.

What role did entities Lomsha Ltd. and Michael & Klil Holdings (93) Ltd. play in the Radcom (RDCM) stake?

Lomsha Ltd. and Michael & Klil Holdings (93) Ltd. hold 271,074 Radcom shares indirectly for each sibling. On May 18, 2023, Zohar Zisapel transferred 50% of each entity to Michael and Klil, giving them shared voting and dispositive power over 542,147 Ordinary Shares.
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