ITW Illinois Tool Works COM

Ownership history in CHECK CAPITAL MANAGEMENT INC/CA  ·  37 quarters on record

AI Ownership Summary

CHECK CAPITAL MANAGEMENT INC/CA reported Illinois Tool Works COM (ITW) in 37 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 0.01% in 2023 Q4. The latest visible filing shows ITW at 0.01% 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 ITW ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CHECK CAPITAL MANAGEMENT INC/CA's position in Illinois Tool Works COM, 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

ITW was reported at 0.01% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.01% in 2023 Q4

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 CHECK CAPITAL MANAGEMENT INC/CA held ITW — position size vs. price
% of Fund (quarterly)    ITW price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED 1,100 0% 0.01% $271K 2026-02-14 (Est.) $297.72
2025 Q3 UNCHANGED 1,100 0% 0.01% $287K 2025-11-06 $241.21
2025 Q2 UNCHANGED 1,100 0% 0.01% $272K 2025-07-25 $256.79
2025 Q1 UNCHANGED 1,100 0% 0.01% $273K 2025-05-02 $236.34
2024 Q4 UNCHANGED 1,100 0% 0.01% $279K 2025-01-30 $252.17
2024 Q3 UNCHANGED 1,100 0% 0.01% $288K 2024-11-06 $265.46
2024 Q2 UNCHANGED 1,100 0% 0.01% $261K 2024-07-25 $233.64
2024 Q1 UNCHANGED 1,100 0% 0.01% $295K 2024-04-19 $238.58
2023 Q4 UNCHANGED 1,100 0% 0.01% $288K 2024-01-31 $247.21
28 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About CHECK CAPITAL MANAGEMENT INC/CA and ITW

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

How long has CHECK CAPITAL MANAGEMENT INC/CA reported owning ITW?

CHECK CAPITAL MANAGEMENT INC/CA reported ITW across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported ITW position in CHECK CAPITAL MANAGEMENT INC/CA's portfolio?

The largest reported portfolio weight for ITW was 0.01% in 2023 Q4.

What is the latest reported ITW position on this page?

The most recent filing on this page is 2025 Q4, when CHECK CAPITAL MANAGEMENT INC/CA reported 1,100 shares, equal to 0.01% of portfolio, with an estimated market value of $271K.

What does the chart on this ITW ownership page compare?

The chart compares CHECK CAPITAL MANAGEMENT INC/CA's quarterly ITW 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.

← Back to CHECK CAPITAL MANAGEMENT INC/CA Holdings