RMBS β€” RAMBUS INC DEL

Ownership history in GLOBEFLEX CAPITAL L P  Β·  4 quarters on record

AI Ownership Summary

GLOBEFLEX CAPITAL L P reported RAMBUS INC DEL (RMBS) in 4 quarterly 13F filings from 2025 Q1 through 2025 Q4. Peak portfolio weight reached 1.02% in 2025 Q3. The latest visible filing shows RMBS at 0.83% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this RMBS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was GLOBEFLEX CAPITAL L P's position in RAMBUS INC DEL, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

RMBS was reported at 0.83% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.02% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How GLOBEFLEX CAPITAL L P held RMBS β€” position size vs. price
% of Fund (quarterly)    RMBS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
πŸ“‹ Quarterly Holdings History 4 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 59,103 -4,715 -7.4% 0.83% $5.4M 2026-02-14 (Est.) $101.95
2025 Q3 REDUCED 63,818 -1,752 -2.7% 1.02% $6.6M 2025-11-12 $102.21
2025 Q2 ADDED 65,570 +31,581 +92.9% 0.35% $4.2M 2025-08-14 $76.00
2025 Q1 INITIATED 33,989 β€” β€” 0.16% $1.8M 2025-05-12 $54.11

FAQ About GLOBEFLEX CAPITAL L P and RMBS

These are the practical questions this page is built to answer before you even open the full history table.

How long has GLOBEFLEX CAPITAL L P reported owning RMBS?

GLOBEFLEX CAPITAL L P reported RMBS across 4 quarterly 13F filings, from 2025 Q1 through 2025 Q4.

What was the largest reported RMBS position in GLOBEFLEX CAPITAL L P's portfolio?

The largest reported portfolio weight for RMBS was 1.02% in 2025 Q3.

What is the latest reported RMBS position on this page?

The most recent filing on this page is 2025 Q4, when GLOBEFLEX CAPITAL L P reported 59,103 shares, equal to 0.83% of portfolio, with an estimated market value of $5.4M.

What does the chart on this RMBS ownership page compare?

The chart compares GLOBEFLEX CAPITAL L P's quarterly RMBS portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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