도날드슨 컴퍼니, Inc.
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionD.a. Davidson & Co.
Latest Disclosed Ownership4,425 shares
Latest Disclosed Value $ 375,550
D.a. Davidson & Co. reports 3.87% decrease in ownership of DCI / Donaldson Company, Inc.

On May 5, 2026 - D.a. Davidson & Co. filed a 13F-HR form disclosing ownership of 4,425 shares of Donaldson Company, Inc. (US:DCI) valued at $375,550 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 4,603 shares of Donaldson Company, Inc.. This represents a change in shares of -3.87% during the quarter. The current value of the position is $371,921 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)
2026-05-05 2026-03-31 13F DONALDSON COM 257651109 4,425 -178 -3.87 376 -8.09 0.0023
2026-01-29 2025-12-31 13F DONALDSON COM 257651109 4,603 -117 -2.48 408 5.70 0.0025
2025-10-22 2025-09-30 13F DONALDSON COM 257651109 4,720 911 23.92 386 46.21 0.0025
2025-07-30 2025-06-30 13F DONALDSON COM 257651109 3,809 0 0.00 264 3.53 0.0019
2025-04-28 2025-03-31 13F DONALDSON COM 257651109 3,809 3,809 255 0.0021
2024-05-13 2024-03-31 13F DONALDSON COM 257651109 0 -9,708 -100.00 0 -100.00
2024-02-09 2023-12-31 13F DONALDSON COM 257651109 9,708 -136 -1.38 634 8.01 0.0062
2023-11-08 2023-09-30 13F DONALDSON COM 257651109 9,844 221 2.30 587 -2.33 0.0064
2023-08-11 2023-06-30 13F DONALDSON COM 257651109 9,623 177 1.87 602 -2.28 0.0064
2023-04-25 2023-03-31 13F DONALDSON COM 257651109 9,446 70 0.75 616 11.21 0.0069
2023-02-03 2022-12-31 13F DONALDSON COM 257651109 9,376 -87 -0.92 553 18.92 0.0065
2022-11-07 2022-09-30 13F DONALDSON COM 257651109 9,463 20 0.21 465 2.20 0.0061
2022-07-28 2022-06-30 13F DONALDSON COM 257651109 9,443 9,443 455 0.0057
2019-08-12 2019-06-30 13F DONALDSON COM 257651109 0 -6,467 -100.00 0 -100.00
2019-05-13 2019-03-31 13F DONALDSON COM 257651109 6,467 765 13.42 323 30.77 0.0056
2019-01-29 2018-12-31 13F DONALDSON COM 257651109 5,702 271 4.99 247 -21.84 0.0048
2018-11-13 2018-09-30 13F DONALDSON COM 257651109 5,431 -42 -0.77 316 27.94 0.0056
2018-08-02 2018-06-30 13F DONALDSON COM 257651109 5,473 -288 -5.00 247 -5.00 0.0048
2018-05-04 2018-03-31 13F DONALDSON COM 257651109 5,761 -23 -0.40 260 -8.13 0.0054
2018-02-08 2017-12-31 13F DONALDSON COM 257651109 5,784 -157 -2.64 283 4.04 0.0059
2017-11-08 2017-09-30 13F DONALDSON COM 257651109 5,941 -70 -1.16 272 -0.37 0.0053
2017-08-11 2017-06-30 13F DONALDSON COM 257651109 6,011 -137 -2.23 273 -2.15 0.0062
2017-05-12 2017-03-31 13F DONALDSON COM 257651109 6,148 -2,704 -30.55 279 -24.59 0.0068
2017-02-15 2016-12-31 13F DONALDSON COM 257651109 8,852 39 0.44 370 13.15 0.0084
2016-11-18 2016-09-30 13F/A-1 DONALDSON COM 257651109 8,813 -230 -2.54 327 5.83 0.0081
2016-11-14 2016-09-30 13F DONALDSON COM 257651109 8,813 327
2016-08-13 2016-06-30 13F DONALDSON COM 257651109 9,043 -109 -1.19 309 6.92 0.0091
2016-05-13 2016-03-31 13F DONALDSON COM 257651109 9,152 3,224 54.39 289 71.01 0.0090
2016-02-12 2015-12-31 13F DONALDSON COM 257651109 5,928 -2,739 -31.60 169 -29.88 0.0055
2015-11-13 2015-09-30 13F DONALDSON COM 257651109 8,667 4,959 133.74 241 82.58 0.0084
2015-08-14 2015-06-30 13F DONALDSON COM 257651109 3,708 760 25.78 132 18.92 0.0043
2015-05-06 2015-03-31 13F DONALDSON COM 257651109 2,948 439 17.50 111 15.63 0.0036
2015-02-12 2014-12-31 13F DONALDSON COM 257651109 2,509 65 2.66 96 -3.03 0.0031
2014-11-12 2014-09-30 13F DONALDSON COM 257651109 2,444 -4,386 -64.22 99 -65.74 0.0034
2014-07-29 2014-06-30 13F DONALDSON COM 257651109 6,830 -3,808 -35.80 289 -35.78 0.0098
2014-05-05 2014-03-31 13F DONALDSON COM 257651109 10,638 -200 -1.85 450 -4.26 0.0161
2014-02-13 2013-12-31 13F/A-1 DONALDSON COM 257651109 10,838 10,770 15,838.24 470 23,400.00 0.0176
2014-02-12 2013-12-31 13F DONALDSON COM 257651109 10,838 470
2013-11-14 2013-09-30 13F DONALDSON COM 257651109 68 0 0.00 2 0.00 0.0001
2013-08-16 2013-06-30 13F DONALDSON COM 257651109 68 68 2 0.0001
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.