Donaldson Company, Inc.
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership150,242 shares
Latest Disclosed Value $ 13,320,456
Alliancebernstein L.p. reports 11.60% decrease in ownership of DCI / Donaldson Company, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 150,242 shares of Donaldson Company, Inc. (US:DCI) valued at $12,751,039 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 169,966 shares of Donaldson Company, Inc.. This represents a change in shares of -11.60% during the quarter. The current value of the position is $12,806,628 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)
2026-05-15 2026-03-31 13F DONALDSON COM 257651109 150,242 -19,724 -11.60 13,320 -11.61 0.0043
2026-02-17 2025-12-31 13F DONALDSON COM 257651109 169,966 22,182 15.01 15,069 24.58 0.0048
2025-11-14 2025-09-30 13F DONALDSON COM 257651109 147,784 -4,286 -2.82 12,096 14.70 0.0038
2025-08-14 2025-06-30 13F DONALDSON COM 257651109 152,070 -12,652 -7.68 10,546 -4.53 0.0034
2025-05-15 2025-03-31 13F DONALDSON COM 257651109 164,722 -3,298 -1.96 11,046 -2.39 0.0040
2025-02-12 2024-12-31 13F DONALDSON COM 257651109 168,020 -2,866 -1.68 11,316 -10.15 0.0038
2024-11-14 2024-09-30 13F DONALDSON COM 257651109 170,886 -23,741 -12.20 12,594 -9.57 0.0042
2024-08-14 2024-06-30 13F DONALDSON COM 257651109 194,627 2,748 1.43 13,928 -2.81 0.0049
2024-05-14 2024-03-31 13F DONALDSON COM 257651109 191,879 -3,026 -1.55 14,330 12.50 0.0051
2024-02-14 2023-12-31 13F DONALDSON COM 257651109 194,905 12,729 6.99 12,737 17.24 0.0049
2023-11-14 2023-09-30 13F DONALDSON COM 257651109 182,176 -3,252 -1.75 10,865 -6.27 0.0046
2023-08-15 2023-06-30 13F DONALDSON COM 257651109 185,428 1,606 0.87 11,591 -3.49 0.0047
2023-05-15 2023-03-31 13F DONALDSON COM 257651109 183,822 -13,049 -6.63 12,011 3.63 0.0051
2023-02-15 2022-12-31 13F DONALDSON COM 257651109 196,871 -347 -0.18 11,590 19.89 0.0052
2022-11-15 2022-09-30 13F DONALDSON COM 257651109 197,218 -2,093 -1.05 9,666 0.74 0.0047
2022-08-15 2022-06-30 13F DONALDSON COM 257651109 199,311 1,200 0.61 9,595 -6.74 0.0044
2022-05-13 2022-03-31 13F DONALDSON COM 257651109 198,111 -3,942 -1.95 10,288 -14.08 0.0040
2022-02-14 2021-12-31 13F DONALDSON COM 257651109 202,053 -2,380 -1.16 11,974 2.03 0.0042
2021-11-10 2021-09-30 13F DONALDSON COM 257651109 204,433 -45,653 -18.25 11,736 -26.13 0.0046
2021-07-30 2021-06-30 13F DONALDSON COM 257651109 250,086 41,233 19.74 15,888 30.80 0.0064
2021-05-06 2021-03-31 13F DONALDSON COM 257651109 208,853 -3,161 -1.49 12,147 2.53 0.0053
2021-02-08 2020-12-31 13F DONALDSON COM 257651109 212,014 -4,380 -2.02 11,847 17.94 0.0056
2020-11-12 2020-09-30 13F DONALDSON COM 257651109 216,394 -3,800 -1.73 10,045 -1.93 0.0054
2020-08-13 2020-06-30 13F DONALDSON COM 257651109 220,194 6,719 3.15 10,243 24.20 0.0060
2020-05-14 2020-03-31 13F DONALDSON COM 257651109 213,475 -1,909 -0.89 8,247 -33.55 0.0059
2020-02-18 2019-12-31 13F DONALDSON COM 257651109 215,384 5,047 2.40 12,410 13.29 0.0071
2019-11-14 2019-09-30 13F DONALDSON COM 257651109 210,337 -3,402 -1.59 10,954 0.76 0.0068
2019-08-14 2019-06-30 13F DONALDSON COM 257651109 213,739 -2,244 -1.04 10,871 0.55 0.0068
2019-05-14 2019-03-31 13F DONALDSON COM 257651109 215,983 -4,769 -2.16 10,812 12.88 0.0070
2019-02-13 2018-12-31 13F DONALDSON COM 257651109 220,752 145,577 193.65 9,578 118.68 0.0071
2018-11-08 2018-09-30 13F DONALDSON COM 257651109 75,175 -11,443 -13.21 4,380 12.08 0.0029
2018-08-13 2018-06-30 13F DONALDSON COM 257651109 86,618 3,264 3.92 3,908 4.07 0.0027
2018-05-14 2018-03-31 13F DONALDSON COM 257651109 83,354 -30,010 -26.47 3,755 -32.33 0.0027
2018-02-13 2017-12-31 13F DONALDSON COM 257651109 113,364 -19,557 -14.71 5,549 -9.12 0.0040
2017-11-13 2017-09-30 13F DONALDSON COM 257651109 132,921 -6,073 -4.37 6,106 -3.54 0.0046
2017-08-10 2017-06-30 13F DONALDSON COM 257651109 138,994 55,350 66.17 6,330 66.27 0.0049
2017-05-11 2017-03-31 13F DONALDSON COM 257651109 83,644 -4,160 -4.74 3,807 3.03 0.0030
2017-02-13 2016-12-31 13F DONALDSON COM 257651109 87,804 -1,354 -1.52 3,695 11.03 0.0031
2016-11-10 2016-09-30 13F DONALDSON COM 257651109 89,158 140 0.16 3,328 8.79 0.0028
2016-08-11 2016-06-30 13F DONALDSON COM 257651109 89,018 -2,410 -2.64 3,059 4.87 0.0026
2016-05-13 2016-03-31 13F DONALDSON COM 257651109 91,428 -365 -0.40 2,917 10.87 0.0025
2016-02-16 2015-12-31 13F/A-1 DONALDSON COM 257651109 91,793 -1,410 -1.51 2,631 0.53 0.0022
2016-02-12 2015-12-31 13F DONALDSON COM 257651109 91,793 2,578
2015-11-13 2015-09-30 13F DONALDSON COM 257651109 93,203 -520 -0.55 2,617 -22.00 0.0022
2015-08-14 2015-06-30 13F DONALDSON COM 257651109 93,723 -1,770 -1.85 3,355 -6.83 0.0028
2015-05-13 2015-03-31 13F DONALDSON COM 257651109 95,493 -2,040 -2.09 3,601 -4.43 0.0029
2015-02-13 2014-12-31 13F DONALDSON COM 257651109 97,533 -16,700 -14.62 3,768 -18.81 0.0031
2014-11-13 2014-09-30 13F DONALDSON COM 257651109 114,233 -11,030 -8.81 4,641 -12.45 0.0039
2014-08-13 2014-06-30 13F DONALDSON COM 257651109 125,263 -4,473 -3.45 5,301 -3.64 0.0045
2014-05-13 2014-03-31 13F DONALDSON COM 257651109 129,736 -3,550 -2.66 5,501 -5.04 0.0048
2014-02-13 2013-12-31 13F DONALDSON COM 257651109 133,286 -2,391 -1.76 5,793 11.99 0.0052
2013-11-14 2013-09-30 13F DONALDSON COM 257651109 135,677 -3,963 -2.84 5,173 3.88 0.0051
2013-08-13 2013-06-30 13F DONALDSON COM 257651109 139,640 139,640 4,980 0.0053
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.