Manager × security

Shannon River Fund Management LLC MRVL holdings history

Who else holds this security?

MARVELL TECHNOLOGY INC · CUSIP 573874104 · CIK 1301050

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-03-31, Shannon River Fund Management LLC reported 563.57K MRVL (shares), valued at $55.82M, or 10.65% of its reported non-derivative portfolio. Filed 2026-05-14.

Verify history & sources
Portfolio weight and quantity history
Reported portfolio weight
10.65%
Shares
563.57K
563,573
Reported value
$55.82M
USD

Shares increased 49.22%; reported value increased 73.92%, and weight changed +5.62 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 2026Not reportedNot reported
Q1 202610.65%563,573SEC filingFiled May 14, 2026
Q4 20255.03%377,684SEC filingFiled Feb 17, 2026
Q3 20255.73%423,644SEC filingFiled Nov 13, 2025
Q2 20258.47%710,174SEC filingFiled Aug 13, 2025
Q1 20255.32%331,045SEC filingFiled May 14, 2025
Q4 202412.73%652,207SEC filingFiled Feb 13, 2025
Q3 20247.59%696,804SEC filingFiled Nov 13, 2024
Q2 20247.77%646,012SEC filingFiled Aug 13, 2024
Q1 2024Not reportedNot reported
Q4 2023Not reportedNot reported
Q3 20233.64%228,700SEC filingFiled Nov 13, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20233.64%228,700$12.38MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing
Filed Nov 13, 2023
Q4 2023Not reportedThis security is absent from this quarter's filing; a missing record is not treated as zero holdings.
Q1 2024Not reportedThis security is absent from this quarter's filing; a missing record is not treated as zero holdings.
Q2 20247.77%646,012$45.16MA comparable prior-quarter record is unavailable; changes are not inferred.SEC filing
Filed Aug 13, 2024
Q3 20247.59%696,804$50.25MShares increased 7.86%; reported value increased 11.29%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 13, 2024
Q4 202412.73%652,207$72.04MShares decreased 6.40%; reported value increased 43.35%, and weight changed +5.14 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 13, 2025
Q1 20255.32%331,045$20.38MShares decreased 49.24%; reported value decreased 71.71%, and weight changed -7.41 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 14, 2025
Q2 20258.47%710,174$54.97MShares increased 114.52%; reported value increased 169.68%, and weight changed +3.15 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 13, 2025
Q3 20255.73%423,644$35.62MShares decreased 40.35%; reported value decreased 35.21%, and weight changed -2.74 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 13, 2025
Q4 20255.03%377,684$32.10MShares decreased 10.85%; reported value decreased 9.88%, and weight changed -0.70 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 17, 2026
Q1 202610.65%563,573$55.82MShares increased 49.22%; reported value increased 73.92%, and weight changed +5.62 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 14, 2026
Q2 2026Not reportedThis security is absent from this quarter's filing; a missing record is not treated as zero holdings.
Shannon River Fund Management LLC · MARVELL TECHNOLOGY INC

Take these holdings further.

This page includes 12 of 12 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

  • Download CSV
  • Earlier quarters
  • Advanced screening & filtering
  • API & AI access
Already have an account?

New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

get_institutional_portfolio
{"cik":"1301050","quarter":"2026Q2","cusip":"573874104"}

get_institutional_manager_history
{"cik":"1301050","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint
https://api.akkrudata.ai/mcp
API / MCP documentation
/documents
llms.txt
/llms.txt
Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.