MRVL MARVELL TECHNOLOGY INC

Ownership history in CastleKnight Management LP  ·  16 quarters on record

AI Ownership Summary

CastleKnight Management LP reported MARVELL TECHNOLOGY INC (MRVL) in 16 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 1.13% in 2025 Q3. The latest visible filing shows MRVL at 0.47% 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. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MRVL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CastleKnight Management LP's position in MARVELL TECHNOLOGY INC, 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

MRVL was reported at 0.47% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.13% 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
2023 Q4 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 CastleKnight Management LP held MRVL — position size vs. price
% of Fund (quarterly)    MRVL price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 14 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 250,000 -292,800 -53.9% 0.47% $21.2M 2026-02-14 (Est.) $78.61
2025 Q4 REDUCED 542,800 -138,500 -20.3% 1.02% $46.1M 2026-02-14 (Est.) $78.61
2025 Q3 ADDED 681,300 +181,300 +36.3% 1.13% $57.3M 2025-11-14 $86.39
2025 Q3 ADDED 500,000 +260,000 +108.3% 0.83% $42.0M 2025-11-14 $86.39
2025 Q2 ADDED 240,000 +146,500 +156.7% 0.52% $18.6M 2025-08-14 $78.93
2025 Q2 ADDED 93,500 +81,900 +706.0% 0.20% $7.2M 2025-08-14 $78.93
2025 Q1 REDUCED 11,600 -2,200 -15.9% 0.03% $714K 2025-05-15 $65.06
2024 Q4 REDUCED 13,800 -3,600 -20.7% 0.04% $1.5M 2025-02-14 $106.16
2024 Q3 ADDED 17,400 +7,400 +74.0% 0.05% $1.3M 2024-11-14 $90.35
2024 Q2 REDUCED 10,000 -28,100 -73.8% 0.03% $699K 2024-08-14 $63.49
2024 Q2 ADDED 38,100 +17,700 +86.8% 0.13% $2.7M 2024-08-14 $63.49
2024 Q1 REDUCED 20,400 -29,600 -59.2% 0.09% $1.4M 2024-05-15 $69.77
2024 Q1 ADDED 50,000 +38,000 +316.7% 0.21% $3.5M 2024-05-15 $69.77
2023 Q4 REDUCED 12,000 -1,600 -11.8% 0.04% $724K 2024-02-14 $68.52
2 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About CastleKnight Management LP and MRVL

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

How long has CastleKnight Management LP reported owning MRVL?

CastleKnight Management LP reported MRVL across 14 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported MRVL position in CastleKnight Management LP's portfolio?

The largest reported portfolio weight for MRVL was 1.13% in 2025 Q3.

What is the latest reported MRVL position on this page?

The most recent filing on this page is 2025 Q4, when CastleKnight Management LP reported 250,000 shares, equal to 0.47% of portfolio, with an estimated market value of $21.2M.

What does the chart on this MRVL ownership page compare?

The chart compares CastleKnight Management LP's quarterly MRVL 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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