Donaldson Company, Inc.
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,988,788 shares
Latest Disclosed Value $ 168,770,172
Dimensional Fund Advisors Lp reports 1.06% decrease in ownership of DCI / Donaldson Company, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,988,788 shares of Donaldson Company, Inc. (US:DCI) valued at $168,788,438 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,010,010 shares of Donaldson Company, Inc.. This represents a change in shares of -1.06% during the quarter. The current value of the position is $169,524,289 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)
2026-05-07 2026-03-31 13F DONALDSON COM 257651109 1,988,788 -21,222 -1.06 168,770 -5.30 0.0076
2026-02-12 2025-12-31 13F DONALDSON COM 257651109 2,010,010 15,799 0.79 178,224 9.19 0.0374
2025-11-12 2025-09-30 13F DONALDSON COM 257651109 1,994,211 20,478 1.04 163,218 19.24 0.0350
2025-08-12 2025-06-30 13F DONALDSON COM 257651109 1,973,733 155,506 8.55 136,884 12.27 0.0317
2025-05-13 2025-03-31 13F DONALDSON COM 257651109 1,818,227 202,746 12.55 121,926 12.06 0.0303
2025-02-13 2024-12-31 13F DONALDSON COM 257651109 1,615,481 129,189 8.69 108,804 -0.67 0.0261
2024-11-07 2024-09-30 13F DONALDSON COM 257651109 1,486,292 175,920 13.43 109,540 16.82 0.0266
2024-08-09 2024-06-30 13F DONALDSON COM 257651109 1,310,372 153,342 13.25 93,770 8.52 0.0245
2024-05-10 2024-03-31 13F DONALDSON COM 257651109 1,157,030 -25,021 -2.12 86,407 11.86 0.0234
2024-02-07 2023-12-31 13F DONALDSON COM 257651109 1,182,051 -33,376 -2.75 77,249 6.56 0.0226
2023-11-09 2023-09-30 13F DONALDSON COM 257651109 1,215,427 -8,022 -0.66 72,490 -5.21 0.0238
2023-08-09 2023-06-30 13F DONALDSON COM 257651109 1,223,449 14,820 1.23 76,478 -3.15 0.0244
2023-05-12 2023-03-31 13F DONALDSON COM 257651109 1,208,629 -10,236 -0.84 78,968 111,121.13 0.0266
2023-02-09 2022-12-31 13F DONALDSON COM 257651109 1,218,865 12,698 1.05 72 -99.88 0.0212
2022-11-10 2022-09-30 13F DONALDSON COM 257651109 1,206,167 3,259 0.27 59,120 2.10 0.0227
2022-08-12 2022-06-30 13F DONALDSON COM 257651109 1,202,908 47,418 4.10 57,906 -3.51 0.0208
2022-05-13 2022-03-31 13F DONALDSON COM 257651109 1,155,490 78,850 7.32 60,010 -5.94 0.0185
2022-02-09 2021-12-31 13F DONALDSON COM 257651109 1,076,640 -31,185 -2.81 63,798 0.29 0.0193
2021-11-12 2021-09-30 13F DONALDSON COM 257651109 1,107,825 18,524 1.70 63,615 -8.07 0.0205
2021-08-12 2021-06-30 13F DONALDSON COM 257651109 1,089,301 -1,186 -0.11 69,200 9.10 0.0219
2021-05-14 2021-03-31 13F DONALDSON COM 257651109 1,090,487 12,592 1.17 63,429 5.30 0.0210
2021-03-08 2020-12-31 13F/A-2 DONALDSON COM 257651109 1,077,895 7,875 0.74 60,235 21.27 0.0218
2021-02-11 2020-12-31 13F DONALDSON COM 257651109 1,077,895 7,875 60,235 21,753.6803
2020-11-12 2020-09-30 13F DONALDSON COM 257651109 1,070,020 -4,909 -0.46 49,669 -0.67 0.0211
2020-08-13 2020-06-30 13F DONALDSON COM 257651109 1,074,929 8,191 0.77 50,002 21.33 0.0220
2020-05-14 2020-03-31 13F DONALDSON COM 257651109 1,066,738 385 0.04 41,210 -32.93 0.0215
2020-02-14 2019-12-31 13F DONALDSON COM 257651109 1,066,353 -21,672 -1.99 61,444 8.44 0.0224
2019-11-12 2019-09-30 13F DONALDSON COM 257651109 1,088,025 8,999 0.83 56,663 3.25 0.0220
2019-08-13 2019-06-30 13F DONALDSON COM 257651109 1,079,026 7,046 0.66 54,879 2.27 0.0213
2019-08-12 2019-03-31 13F/A-2 DONALDSON COM 257651109 1,071,980 5,551 0.52 53,660 15.97 0.0214
2019-05-10 2019-03-31 13F DONALDSON COM 257651109 1,071,980 5,551 53,660
2019-02-26 2018-12-31 13F/A-1 DONALDSON COM 257651109 1,066,429 33,976 3.29 46,270 -23.08 0.0210
2019-02-13 2018-12-31 13F DONALDSON COM 257651109 1,066,429 33,976 46,270
2018-11-13 2018-09-30 13F DONALDSON COM 257651109 1,032,453 28,198 2.81 60,151 32.75 0.0229
2018-08-10 2018-06-30 13F DONALDSON COM 257651109 1,004,255 47,918 5.01 45,312 5.17 0.0181
2018-05-11 2018-03-31 13F DONALDSON COM 257651109 956,337 25,984 2.79 43,083 -5.40 0.0180
2018-02-12 2017-12-31 13F DONALDSON COM 257651109 930,353 52,765 6.01 45,542 12.96 0.0189
2017-11-13 2017-09-30 13F DONALDSON COM 257651109 877,588 61,371 7.52 40,317 8.47 0.0176
2017-08-11 2017-06-30 13F DONALDSON COM 257651109 816,217 -39,347 -4.60 37,169 -4.56 0.0172
2017-05-12 2017-03-31 13F DONALDSON COM 257651109 855,564 2,545 0.30 38,944 8.49 0.0186
2017-02-09 2016-12-31 13F DONALDSON COM 257651109 853,019 -16,010 -1.84 35,897 10.66 0.0179
2016-11-10 2016-09-30 13F DONALDSON COM 257651109 869,029 63,913 7.94 32,439 17.26 0.0175
2016-08-09 2016-06-30 13F DONALDSON COM 257651109 805,116 18,671 2.37 27,663 10.23 0.0159
2016-05-13 2016-03-31 13F DONALDSON COM 257651109 786,445 13,655 1.77 25,096 13.31 0.0150
2016-02-10 2015-12-31 13F DONALDSON COM 257651109 772,790 60,886 8.55 22,149 10.81 0.0138
2015-11-13 2015-09-30 13F DONALDSON COM 257651109 711,904 51,054 7.73 19,989 -15.51 0.0131
2015-08-14 2015-06-30 13F DONALDSON COM 257651109 660,850 97,628 17.33 23,659 11.40 0.0145
2015-05-14 2015-03-31 13F DONALDSON COM 257651109 563,222 142,257 33.79 21,238 30.58 0.0134
2015-02-06 2014-12-31 13F DONALDSON COM 257651109 420,965 140,258 49.97 16,264 42.59 0.0107
2014-11-13 2014-09-30 13F DONALDSON COM 257651109 280,707 105,278 60.01 11,406 53.64 0.0081
2014-08-08 2014-06-30 13F DONALDSON COM 257651109 175,429 6,551 3.88 7,424 3.70 0.0052
2014-05-14 2014-03-31 13F DONALDSON COM 257651109 168,878 9,921 6.24 7,159 3.63 0.0053
2014-02-12 2013-12-31 13F DONALDSON COM 257651109 158,957 1,916 1.22 6,908 15.38 0.0054
2013-11-13 2013-09-30 13F DONALDSON COM 257651109 157,041 13,989 9.78 5,987 17.35 0.0052
2013-08-15 2013-06-30 13F DONALDSON COM 257651109 143,052 143,052 5,102 0.0048
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.