唐納森公司
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership2,409,565 shares
Latest Disclosed Value $ 204,500,024
Morgan Stanley reports 5.22% decrease in ownership of DCI / Donaldson Company, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 2,409,565 shares of Donaldson Company, Inc. (US:DCI) valued at $204,499,782 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 2,542,166 shares of Donaldson Company, Inc.. This represents a change in shares of -5.22% during the quarter. The current value of the position is $202,523,938 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 2,409,565 -132,601 -5.22 204,500 -9.27 0.0123
2026-05-27 2025-12-31 13F/A-1 DONALDSON COM 257651109 2,542,166 47,062 1.89 225,389 10.36 0.0135
2026-02-13 2025-12-31 13F DONALDSON COM 257651109 2,542,166 47,062 225,389 0.0135
2026-05-27 2025-09-30 13F/A-1 DONALDSON COM 257651109 2,495,104 401,720 19.19 204,224 40.67 0.0124
2025-11-14 2025-09-30 13F DONALDSON COM 257651109 2,495,104 401,720 204,224 0.0124
2025-08-15 2025-06-30 13F DONALDSON COM 257651109 2,093,384 47,447 2.32 145,176 5.81 0.0095
2025-05-15 2025-03-31 13F DONALDSON COM 257651109 2,045,937 -129,664 -5.96 137,201 -6.36 0.0098
2025-05-15 2024-12-31 13F/A-1 DONALDSON COM 257651109 2,175,601 836,293 62.44 146,527 48.45 0.0103
2025-02-14 2024-12-31 13F DONALDSON COM 257651109 2,175,601 836,293 146,527 0.0103
2025-05-14 2024-09-30 13F/A-2 DONALDSON COM 257651109 1,339,308 65,282 5.12 98,707 8.27 0.0072
2025-02-14 2024-09-30 13F/A-1 DONALDSON COM 257651109 1,339,308 65,282 98,707 0.0072
2024-11-14 2024-09-30 13F DONALDSON COM 257651109 1,339,308 65,282 98,707 0.0008
2025-05-14 2024-06-30 13F/A-2 DONALDSON COM 257651109 1,274,026 -18,893 -1.46 91,170 -5.58 0.0071
2024-10-17 2024-06-30 13F/A-1 DONALDSON COM 257651109 1,274,026 -18,893 91,170 0.0071
2024-08-14 2024-06-30 13F DONALDSON COM 257651109 1,274,026 -18,893 91,170 0.0071
2024-10-17 2024-03-31 13F/A-2 DONALDSON COM 257651109 1,292,919 -388,283 -23.10 96,555 -12.12 0.0077
2024-08-16 2024-03-31 13F/A-1 DONALDSON COM 257651109 1,292,919 -388,283 96,555 0.0009
2024-05-15 2024-03-31 13F DONALDSON COM 257651109 1,292,919 -388,283 96,555 0.0077
2024-08-16 2023-12-31 13F/A-1 DONALDSON COM 257651109 1,681,202 390,000 30.20 109,867 42.67 0.0097
2024-02-13 2023-12-31 13F DONALDSON COM 257651109 1,681,202 390,000 109,867 0.0097
2023-11-15 2023-09-30 13F DONALDSON COM 257651109 1,291,202 2,342 0.18 77,007 -4.42 0.0078
2023-08-14 2023-06-30 13F DONALDSON COM 257651109 1,288,860 -64,865 -4.79 80,567 -8.92 0.0079
2023-05-15 2023-03-31 13F DONALDSON COM 257651109 1,353,725 45,487 3.48 88,453 14.85 0.0095
2023-02-14 2022-12-31 13F DONALDSON COM 257651109 1,308,238 404,335 44.73 77,016 73.85 0.0087
2022-11-14 2022-09-30 13F DONALDSON COM 257651109 903,903 242,657 36.70 44,301 39.17 0.0060
2022-10-27 2022-06-30 13F/A-1 DONALDSON COM 257651109 661,246 176,435 36.39 31,832 26.44 0.0041
2022-08-15 2022-06-30 13F DONALDSON COM 257651109 661,246 176,435 31,832 0.0008
2022-10-27 2022-03-31 13F/A-1 DONALDSON COM 257651109 484,811 5,347 1.12 25,175 -11.40 0.0034
2022-05-13 2022-03-31 13F DONALDSON COM 257651109 484,811 5,347 25,175 0.0034
2022-02-14 2021-12-31 13F DONALDSON COM 257651109 479,464 69,081 16.83 28,413 20.59 0.0035
2021-11-15 2021-09-30 13F DONALDSON COM 257651109 410,383 18,003 4.59 23,561 -5.49 0.0032
2021-08-23 2021-06-30 13F/A-1 DONALDSON COM 257651109 392,380 -118,590 -23.21 24,929 -16.11 0.0033
2021-08-16 2021-06-30 13F DONALDSON COM 257651109 392,380 -118,590 24,929 0.0007
2021-05-17 2021-03-31 13F DONALDSON COM 257651109 510,970 -6,136 -1.19 29,717 2.84 0.0044
2021-02-16 2020-12-31 13F DONALDSON COM 257651109 517,106 232,095 81.43 28,896 118.40 0.0045
2020-11-13 2020-09-30 13F DONALDSON COM 257651109 285,011 -48,225 -14.47 13,231 -14.66 0.0026
2020-08-14 2020-06-30 13F DONALDSON COM 257651109 333,236 -66,995 -16.74 15,503 0.27 0.0034
2020-05-26 2020-03-31 13F/A-1 DONALDSON COM 257651109 400,231 134,345 50.53 15,461 0.92 0.0042
2020-05-15 2020-03-31 13F DONALDSON COM 257651109 400,231 134,345 15,461 1,187.7271
2020-02-14 2019-12-31 13F DONALDSON COM 257651109 265,886 -81,274 -23.41 15,320 -15.27 0.0036
2019-11-14 2019-09-30 13F DONALDSON COM 257651109 347,160 134,682 63.39 18,080 67.30 0.0048
2019-08-14 2019-06-30 13F DONALDSON COM 257651109 212,478 -55,905 -20.83 10,807 -19.56 0.0029
2019-05-15 2019-03-31 13F DONALDSON COM 257651109 268,383 -301,263 -52.89 13,435 -45.64 0.0038
2019-02-14 2018-12-31 13F DONALDSON COM 257651109 569,646 -45,928 -7.46 24,717 -31.08 0.0074
2019-04-23 2018-09-30 13F/A-2 DONALDSON COM 257651109 615,574 301,214 95.82 35,863 152.86 0.0090
2018-11-20 2018-09-30 13F/A-1 DONALDSON COM 257651109 615,574 0 35,863 0.0090
2018-11-14 2018-09-30 13F DONALDSON COM 257651109 615,574 301,214 35,863
2019-04-23 2018-06-30 13F/A-1 DONALDSON COM 257651109 314,360 -164,535 -34.36 14,183 -34.26 0.0038
2018-08-14 2018-06-30 13F DONALDSON COM 257651109 314,360 -164,535 14,183
2019-04-23 2018-03-31 13F/A-1 DONALDSON COM 257651109 478,895 -219,501 -31.43 21,575 -36.89 0.0060
2018-05-14 2018-03-31 13F DONALDSON COM 257651109 478,895 -219,501 21,575
2019-04-23 2017-12-31 13F/A-1 DONALDSON COM 257651109 698,396 -53,062 -7.06 34,187 -0.97 0.0094
2018-02-14 2017-12-31 13F DONALDSON COM 257651109 698,396 -53,062 34,187
2017-11-14 2017-09-30 13F DONALDSON COM 257651109 751,458 -11,005 -1.44 34,521 -0.58 0.0103
2017-08-11 2017-06-30 13F DONALDSON COM 257651109 762,463 81,108 11.90 34,723 11.96 0.0105
2017-05-22 2017-03-31 13F/A-1 DONALDSON COM 257651109 681,355 -426,868 -38.52 31,015 -33.49 0.0095
2017-05-12 2017-03-31 13F DONALDSON COM 257651109 681,355 31,015
2017-02-22 2016-12-31 13F/A-1 DONALDSON COM 257651109 1,108,223 849,560 328.44 46,634 382.95 0.0153
2017-02-13 2016-12-31 13F DONALDSON COM 257651109 1,108,223 46,634
2016-11-10 2016-09-30 13F DONALDSON COM 257651109 258,663 28,043 12.16 9,656 21.87 0.0033
2016-08-12 2016-06-30 13F DONALDSON COM 257651109 230,620 133,509 137.48 7,923 155.66 0.0029
2016-05-12 2016-03-31 13F DONALDSON COM 257651109 97,111 -33,104 -25.42 3,099 -16.96 0.0012
2016-02-09 2015-12-31 13F DONALDSON COM 257651109 130,215 15,450 13.46 3,732 15.79 0.0014
2016-02-08 2015-09-30 13F/A-1 DONALDSON COM 257651109 114,765 -99,603 -46.46 3,223 -58.00 0.0012
2015-11-09 2015-09-30 13F DONALDSON COM 257651109 114,765 3,223
2015-08-12 2015-06-30 13F DONALDSON COM 257651109 214,368 15,707 7.91 7,674 2.43 0.0027
2015-05-14 2015-03-31 13F DONALDSON COM 257651109 198,661 69,556 53.88 7,492 50.20 0.0028
2015-02-13 2014-12-31 13F DONALDSON COM 257651109 129,105 14,324 12.48 4,988 6.95 0.0018
2014-12-16 2014-09-30 13F/A-1 DONALDSON COM 257651109 114,781 -372,162 -76.43 4,664 -77.41 0.0018
2014-11-14 2014-09-30 13F DONALDSON COM 257651109 114,781 4,664
2014-05-13 2014-03-31 13F DONALDSON COM 257651109 486,943 -15,095 -3.01 20,645 -5.37 0.0086
2014-02-13 2013-12-31 13F DONALDSON COM 257651109 502,038 84,122 20.13 21,817 36.91 0.0093
2013-11-13 2013-09-30 13F DONALDSON INC COM ST COM 257651109 417,916 -35,384 -7.81 15,935 -1.42 0.0075
2013-08-08 2013-06-30 13F DONALDSON INC COM ST COM 257651109 453,300 453,300 16,165 0.0082
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.