Manager × security

Optiver Holding B.V. MSFT holdings history

Who else holds this security? →

MICROSOFT CORP · CUSIP 594918104 · CIK 1859606

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 2026-06-30, Optiver Holding B.V. reported 469.87K MSFT (shares), valued at $175.27M, or 2.51% of its reported non-derivative portfolio. Filed 2026-08-12.

Verify history & sources →
Portfolio weight and quantity history
Reported portfolio weight
2.51%
Shares
469.87K
469,873
Reported value
$175.27M
USD

Shares increased 640.28%; reported value increased 645.98%, and weight changed +1.63 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 20262.51%469,873SEC filing ↗Filed Aug 12, 2026
Q1 20260.88%63,472SEC filing ↗Filed Jun 2, 2026Amended
Q4 20251.76%202,178SEC filing ↗Filed Feb 17, 2026
Q3 20255.31%631,317SEC filing ↗Filed Nov 10, 2025
Q2 20256.02%448,308SEC filing ↗Filed Aug 14, 2025
Q1 20251.58%109,166SEC filing ↗Filed May 15, 2025
Q4 20243.10%227,629SEC filing ↗Filed Feb 14, 2025
Q3 20241.00%91,182SEC filing ↗Filed Nov 14, 2024
Q2 20241.21%140,444SEC filing ↗Filed Aug 14, 2024
Q1 20242.17%124,310SEC filing ↗Filed May 9, 2024
Q4 20233.65%325,159SEC filing ↗Filed Feb 13, 2024
Q3 20231.67%184,954SEC filing ↗Filed Nov 13, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20231.67%184,954$58.40MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 13, 2023
Q4 20233.65%325,159$122.27MShares increased 75.81%; reported value increased 109.37%, and weight changed +1.98 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 13, 2024
Q1 20242.17%124,310$52.30MShares decreased 61.77%; reported value decreased 57.23%, and weight changed -1.48 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 9, 2024
Q2 20241.21%140,444$62.77MShares increased 12.98%; reported value increased 20.02%, and weight changed -0.96 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 20241.00%91,182$39.24MShares decreased 35.08%; reported value decreased 37.49%, and weight changed -0.21 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2024
Q4 20243.10%227,629$95.95MShares increased 149.64%; reported value increased 144.54%, and weight changed +2.10 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2025
Q1 20251.58%109,166$40.98MShares decreased 52.04%; reported value decreased 57.29%, and weight changed -1.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2025
Q2 20256.02%448,308$222.99MShares increased 310.67%; reported value increased 444.15%, and weight changed +4.44 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2025
Q3 20255.31%631,317$326.99MShares increased 40.82%; reported value increased 46.64%, and weight changed -0.71 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 10, 2025
Q4 20251.76%202,178$97.78MShares decreased 67.98%; reported value decreased 70.10%, and weight changed -3.55 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 17, 2026
Q1 20260.88%63,472$23.50MShares decreased 68.61%; reported value decreased 75.97%, and weight changed -0.88 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jun 2, 2026
Q2 20262.51%469,873$175.27MShares increased 640.28%; reported value increased 645.98%, and weight changed +1.63 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 12, 2026
Optiver Holding B.V. · MICROSOFT CORP

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":"1859606","quarter":"2026Q2","cusip":"594918104"}

get_institutional_manager_history
{"cik":"1859606","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.