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RDCM in the 13F filings

Radcom LTD · CUSIP M81865111

Sector · Technology hardware and equipment
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2023Q2 2019Q1 2019Q4 2018Q3 2018Q2 2018
Quarter end
31 Mar 2026
the date the book describes
Filed
15 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
11
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 1 listed it in both
Shares listed
1,361,674
combined, among listed positions
Reported value
$17m
combined, at the quarter end

Among the 91 comparable managers: 5 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -129,186.

Managers listing RDCM in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

11 of 11 holders

ActionFiling
Acadian Asset Management LLC628,129$7.6munder 0.1%Added+87,79013 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC193,793$2.4munder 0.1%Trimmed-14,94014 May 2026 (the filing on sec.gov)
ARK Investment Management LLC172,735$2.1munder 0.1%Added+21,77812 May 2026 (the filing on sec.gov)
Marshall Wace LLP133,297$1.6munder 0.1%Trimmed-62,25715 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC78,851$959kunder 0.1%Added+15,91915 May 2026 (the filing on sec.gov)
Millennium Management LLC66,216$805kunder 0.1%Trimmed-14,47715 May 2026 (the filing on sec.gov)
Two Sigma Investments LP29,675$361kunder 0.1%Trimmed-67,35215 May 2026 (the filing on sec.gov)
Walleye Capital LLC18,887$230kunder 0.1%Trimmed-37,73413 May 2026 (the filing on sec.gov)
Point72 Asset Management LP14,813$180kunder 0.1%Added+1,18015 May 2026 (the filing on sec.gov)
Man Group PLC14,496$176kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Citadel Advisors LLC10,782$131kunder 0.1%Trimmed-45,67115 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (1)

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q2 2019 to 1 in Q2 2026

Tracked managers listing it, at least.

00111Q4 2015Q1 2018Q3 2018Q1 2019Q4 2023Q2 2025Q4 2025Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
RDCM by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20151$184kn.a.n.a.
Q4 20171$248kn.a.n.a.
Q1 20181$564kn.a.n.a.
Q2 20181$580kn.a.n.a.
Q3 20181$287kn.a.n.a.
Q4 20181$390kn.a.n.a.
Q1 20191$427kn.a.n.a.
Q2 20191$490kn.a.n.a.
Q4 20231$1.6m10
Q1 20251$1.6m10
Q2 20251$2.0m10
Q3 20251$2.1m01
Q4 20251$2.0m120
Q1 20261$2.1m57
Q2 20261$2.5m75

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

RDCM and AAPL →RDCM and SNDK →RDCM and CSCO →Choose a stock to compare with RDCM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own RDCM, latest filings →Back to the 13F Explorer →