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CONGRESS ASSET MANAGEMENT CO

Position in RMBS — Rambus Inc

CIK 897378 BOSTON, MA

Position in RMBS

as of Jun 30, 2026 · filed Jul 7, 2026
Position Value
$103,270,790
-$6,501,597 QoQ
Shares Held
777,993
-39.0% QoQ
Ownership
0.719%
of shares outstanding
% of Portfolio
0.64%
of 13F equity value
Holder Rank
#1
of 23 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 96.46102214287275.ToString("F0")% Shared 1.9683981732483455.ToString("F0")% None 1.570579683878904.ToString("F0")%

Common Shares in RMBS Over Time

Shares Held

Position Value (USD)

Position in Semiconductors

Technology · as of Jun 30, 2026

CONGRESS ASSET MANAGEMENT CO holds $1,561,377,340 across 13 Semiconductors names. RMBS ranks #6 (6.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 RMBS
Rambus Inc
This page
777,993 $103,270,790

All Filings in RMBS

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $103,270,790 777,993
2026-03-31 $109,772,387 1,275,978
2025-12-31 $129,621,412 1,410,615
2025-09-30 $140,376,677 1,347,185
2025-06-30 $81,748,802 1,276,926
2025-03-31 $62,113,423 1,199,564
2024-12-31 $45,778,134 866,026