Manager × security

MAIRS & POWER INC MSFT holdings history

Who else holds this security?

MICROSOFT CORP · CUSIP 594918104 · CIK 1070134

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, MAIRS & POWER INC reported 1.95M MSFT (shares), valued at $727.66M, or 6.68% of its reported non-derivative portfolio. Filed 2026-08-14.

Verify history & sources
Portfolio weight and quantity history
Reported portfolio weight
6.68%
Shares
1.95M
1,950,737
Reported value
$727.66M
USD

Shares increased 0.43%; reported value increased 1.20%, and weight changed -0.67 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 20266.68%1,950,737SEC filingFiled Aug 14, 2026
Q1 20267.35%1,942,391SEC filingFiled May 14, 2026
Q4 20258.90%1,912,896SEC filingFiled Feb 17, 2026
Q3 20259.28%1,905,547SEC filingFiled Nov 14, 2025
Q2 20259.84%2,004,808SEC filingFiled Aug 14, 2025
Q1 20257.80%1,996,217SEC filingFiled May 15, 2025
Q4 20248.03%1,969,379SEC filingFiled Feb 14, 2025
Q3 20247.91%1,955,215SEC filingFiled Nov 14, 2024
Q2 20248.45%1,957,122SEC filingFiled Aug 14, 2024
Q1 20248.01%1,966,804SEC filingFiled May 15, 2024
Q4 20237.83%1,975,744SEC filingFiled Feb 14, 2024
Q3 20237.59%2,047,386SEC filingFiled Nov 14, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20237.59%2,047,386$646.46MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing
Filed Nov 14, 2023
Q4 20237.83%1,975,744$742.96MShares decreased 3.50%; reported value increased 14.93%, and weight changed +0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 14, 2024
Q1 20248.01%1,966,804$827.47MShares decreased 0.45%; reported value increased 11.38%, and weight changed +0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 15, 2024
Q2 20248.45%1,957,122$874.74MShares decreased 0.49%; reported value increased 5.71%, and weight changed +0.44 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 14, 2024
Q3 20247.91%1,955,215$841.33MShares decreased 0.10%; reported value decreased 3.82%, and weight changed -0.54 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 14, 2024
Q4 20248.03%1,969,379$830.09MShares increased 0.72%; reported value decreased 1.34%, and weight changed +0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 14, 2025
Q1 20257.80%1,996,217$749.36MShares increased 1.36%; reported value decreased 9.73%, and weight changed -0.23 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 15, 2025
Q2 20259.84%2,004,808$997.21MShares increased 0.43%; reported value increased 33.08%, and weight changed +2.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 14, 2025
Q3 20259.28%1,905,547$986.98MShares decreased 4.95%; reported value decreased 1.03%, and weight changed -0.56 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 14, 2025
Q4 20258.90%1,912,896$925.11MShares increased 0.39%; reported value decreased 6.27%, and weight changed -0.38 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 17, 2026
Q1 20267.35%1,942,391$719.01MShares increased 1.54%; reported value decreased 22.28%, and weight changed -1.55 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 14, 2026
Q2 20266.68%1,950,737$727.66MShares increased 0.43%; reported value increased 1.20%, and weight changed -0.67 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 14, 2026
MAIRS & POWER INC · 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":"1070134","quarter":"2026Q2","cusip":"594918104"}

get_institutional_manager_history
{"cik":"1070134","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.