イリノイツールワークス株式会社
US ˙ NYSE ˙ US4523081093

SecurityITW / Illinois Tool Works Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership508,911 shares
Latest Disclosed Value $ 132,464,308
Rhumbline Advisers reports 1.59% decrease in ownership of ITW / Illinois Tool Works Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 508,911 shares of Illinois Tool Works Inc. (US:ITW) valued at $132,464,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 517,139 shares of Illinois Tool Works Inc.. This represents a change in shares of -1.59% during the quarter. The current value of the position is $128,611,988 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F ILL TOOL WKS INC COM COM 452308109 508,911 -8,228 -1.59 132,464 4.00 0.1133
2026-02-13 2025-12-31 13F ILL TOOL WKS INC COM COM 452308109 517,139 -10,900 -2.06 127,371 -7.50 0.1030
2025-11-06 2025-09-30 13F ILL TOOL WKS INC COM COM 452308109 528,039 6,142 1.18 137,691 6.71 0.1106
2025-08-12 2025-06-30 13F ILL TOOL WKS INC COM COM 452308109 521,897 -7,697 -1.45 129,039 -1.76 0.1105
2025-05-29 2025-03-31 13F/A-1 ILL TOOL WKS INC COM COM 452308109 529,594 8,979 1.72 131,344 -0.50 0.1229
2025-04-08 2025-03-31 13F ILL TOOL WKS INC COM COM 452308109 529,594 8,979 131,344 0.1229
2025-05-29 2024-12-31 13F/A-1 ILL TOOL WKS INC COM COM 452308109 520,615 -15,292 -2.85 132,007 -6.01 0.1181
2025-01-30 2024-12-31 13F ILL TOOL WKS INC COM COM 452308109 520,615 -15,292 132,007 0.1181
2024-11-12 2024-09-30 13F ILL TOOL WKS INC COM COM 452308109 535,907 -25,797 -4.59 140,445 5.52 0.1267
2024-08-01 2024-06-30 13F ILL TOOL WKS INC COM COM 452308109 561,704 -18,871 -3.25 133,101 -14.56 0.1251
2024-05-09 2024-03-31 13F ILL TOOL WKS INC COM COM 452308109 580,575 -10,594 -1.79 155,786 0.60 0.1496
2024-02-08 2023-12-31 13F ILL TOOL WKS INC COM COM 452308109 591,169 -7,964 -1.33 154,851 12.22 0.1623
2023-11-09 2023-09-30 13F ILL TOOL WKS INC COM COM 452308109 599,133 -1,978 -0.33 137,986 -8.24 0.1602
2023-08-08 2023-06-30 13F ILL TOOL WKS INC COM COM 452308109 601,111 -13,313 -2.17 150,374 100,821.48 0.1684
2023-05-11 2023-03-31 13F ILL TOOL WKS INC COM COM 452308109 614,424 21,588 3.64 150 -99.89 0.1846
2023-02-14 2022-12-31 13F ILL TOOL WKS INC COM COM 452308109 592,836 18,160 3.16 130,602 25.80 0.1756
2022-11-10 2022-09-30 13F ILL TOOL WKS INC COM COM 452308109 574,676 15,215 2.72 103,815 1.82 0.1546
2022-08-11 2022-06-30 13F ILL TOOL WKS INC COM COM 452308109 559,461 21,033 3.91 101,962 -9.57 0.1488
2022-05-12 2022-03-31 13F ILL TOOL WKS INC COM COM 452308109 538,428 7,056 1.33 112,747 -14.03 0.1451
2022-02-10 2021-12-31 13F ILL TOOL WKS INC COM COM 452308109 531,372 8,454 1.62 131,143 21.37 0.1607
2021-11-12 2021-09-30 13F ILL TOOL WKS INC COM COM 452308109 522,918 -20,835 -3.83 108,051 -11.11 0.1462
2021-08-05 2021-06-30 13F ILL TOOL WKS INC COM COM 452308109 543,753 -22,090 -3.90 121,561 -3.02 0.1595
2021-05-06 2021-03-31 13F ILL TOOL WKS INC COM COM 452308109 565,843 -24,674 -4.18 125,346 4.11 0.1703
2021-02-10 2020-12-31 13F ILL TOOL WKS INC COM COM 452308109 590,517 -7,113 -1.19 120,395 4.27 0.1662
2020-11-12 2020-09-30 13F ILL TOOL WKS INC COM COM 452308109 597,630 -9,608 -1.58 115,468 8.75 0.1809
2020-08-13 2020-06-30 13F ILL TOOL WKS INC COM COM 452308109 607,238 3,822 0.63 106,176 23.81 0.1773
2020-05-06 2020-03-31 13F ILL TOOL WKS INC COM COM 452308109 603,416 -4,180 -0.69 85,757 -21.43 0.1797
2020-02-05 2019-12-31 13F ILL TOOL WKS INC COM COM 452308109 607,596 2,469 0.41 109,142 15.26 0.1825
2019-10-23 2019-09-30 13F ILL TOOL WKS INC COM COM 452308109 605,127 17,504 2.98 94,696 6.86 0.1730
2019-08-14 2019-06-30 13F ILL TOOL WKS INC COM COM 452308109 587,623 -16,187 -2.68 88,619 2.25 0.1664
2019-05-01 2019-03-31 13F ILL TOOL WKS INC COM COM 452308109 603,810 28,673 4.99 86,665 18.94 0.1678
2019-01-31 2018-12-31 13F ILL TOOL WKS INC COM COM 452308109 575,137 -13,309 -2.26 72,864 -12.26 0.1586
2018-11-07 2018-09-30 13F ILL TOOL WKS INC COM COM 452308109 588,446 860 0.15 83,041 2.01 0.1604
2018-08-06 2018-06-30 13F ILL TOOL WKS INC COM COM 452308109 587,586 31,158 5.60 81,404 -6.61 0.1642
2018-05-02 2018-03-31 13F ILL TOOL WKS INC COM COM 452308109 556,428 -15,952 -2.79 87,170 -8.72 0.1821
2018-02-09 2017-12-31 13F ILL TOOL WKS INC COM COM 452308109 572,380 12 0.00 95,502 12.77 0.1940
2017-11-06 2017-09-30 13F ILL TOOL WKS INC COM COM 452308109 572,368 3,160 0.56 84,688 3.86 0.1841
2017-08-02 2017-06-30 13F ILL TOOL WKS INC COM COM 452308109 569,208 -2,534 -0.44 81,539 7.66 0.1861
2017-05-02 2017-03-31 13F ILL TOOL WKS INC COM COM 452308109 571,742 8,975 1.59 75,739 9.90 0.1769
2017-01-27 2016-12-31 13F ILL TOOL WKS INC COM COM 452308109 562,767 -561 -0.10 68,916 2.08 0.1747
2016-11-08 2016-09-30 13F ILL TOOL WKS INC COM COM 452308109 563,328 38,413 7.32 67,509 23.47 0.1860
2016-08-11 2016-06-30 13F ILL TOOL WKS INC COM COM 452308109 524,915 20,347 4.03 54,675 5.78 0.1620
2016-05-02 2016-03-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 504,568 13,863 2.83 51,688 13.65 0.1604
2016-02-03 2015-12-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 490,705 -3,723 -0.75 45,479 11.75 0.1463
2015-11-04 2015-09-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 494,428 -2,617 -0.53 40,696 -10.80 0.1385
2015-08-04 2015-06-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 497,045 -89,129 -15.21 45,624 -19.87 0.1454
2015-05-12 2015-03-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 586,174 -31,836 -5.15 56,941 -2.71 0.1643
2015-02-06 2014-12-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 618,010 -49,697 -7.44 58,526 3.83 0.1700
2014-11-12 2014-09-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 667,707 -12,470 -1.83 56,368 -5.35 0.1693
2014-08-06 2014-06-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 680,177 -20,400 -2.91 59,556 4.52 0.1748
2014-05-06 2014-03-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 700,577 -42,740 -5.75 56,978 -8.83 0.1690
2014-02-03 2013-12-31 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 743,317 -18,497 -2.43 62,498 7.56 0.1844
2013-11-05 2013-09-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 761,814 5,554 0.73 58,104 11.07 0.1800
2013-08-07 2013-06-30 13F ILLINOIS TOOL WORKS COMMON STO COM 452308109 756,260 756,260 52,311 0.1681
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.