Donaldson Company, Inc.
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership53,010 shares
Latest Disclosed Value $ 4,499
Amalgamated Bank reports 3.93% increase in ownership of DCI / Donaldson Company, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 53,010 shares of Donaldson Company, Inc. (US:DCI) valued at $4,498,959 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 51,004 shares of Donaldson Company, Inc.. This represents a change in shares of 3.93% during the quarter. The current value of the position is $4,434,286 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)
2026-05-08 2026-03-31 13F DONALDSON COM 257651109 53,010 2,006 3.93 4 0.00 0.0344
2026-02-05 2025-12-31 13F DONALDSON COM 257651109 51,004 -2,782 -5.17 5 0.00 0.0326
2025-10-29 2025-09-30 13F DONALDSON COM 257651109 53,786 -1,429 -2.59 4 33.33 0.0315
2025-08-04 2025-06-30 13F DONALDSON COM 257651109 55,215 -624 -1.12 4 0.00 0.0296
2025-04-25 2025-03-31 13F DONALDSON COM 257651109 55,839 -2,764 -4.72 4 0.00 0.0320
2025-02-04 2024-12-31 13F DONALDSON COM 257651109 58,603 -111 -0.19 4 -25.00 0.0324
2024-10-30 2024-09-30 13F DONALDSON COM 257651109 58,714 -8,705 -12.91 4 0.00 0.0356
2024-08-12 2024-06-30 13F DONALDSON COM 257651109 67,419 1,160 1.75 5 0.00 0.0411
2024-04-23 2024-03-31 13F DONALDSON COM 257651109 66,259 -14,847 -18.31 5 -20.00 0.0423
2024-02-06 2023-12-31 13F DONALDSON COM 257651109 81,106 -6,110 -7.01 5 0.00 0.0423
2023-11-08 2023-09-30 13F DONALDSON COM 257651109 87,216 61 0.07 5 0.00 0.0443
2023-08-11 2023-06-30 13F DONALDSON COM 257651109 87,155 480 0.55 5 0.00 0.0441
2023-05-02 2023-03-31 13F DONALDSON COM 257651109 86,675 -11,997 -12.16 6 0.00 0.0483
2023-02-10 2022-12-31 13F DONALDSON COM 257651109 98,672 9,260 10.36 6 -99.89 0.0518
2022-11-09 2022-09-30 13F DONALDSON COM 257651109 89,412 487 0.55 4,382 2.36 0.0423
2022-08-15 2022-06-30 13F DONALDSON COM 257651109 88,925 2,409 2.78 4,281 -4.72 0.0399
2022-08-25 2022-03-31 13F/A-1 DONALDSON COM 257651109 86,516 -2,744 -3.07 4,493 -15.07 0.0349
2022-06-30 2022-03-31 13F DONALDSON COM 257651109 86,516 -2,744 4,493 0.0357
2022-02-15 2021-12-31 13F/A-1 DONALDSON COM 257651109 89,260 -2,389 -2.61 5,290 0.53 0.0390
2022-02-15 2021-12-31 13F DONALDSON COM 257651109 89,260 -2,389 5,290 0.0390
2021-10-29 2021-09-30 13F DONALDSON COM 257651109 91,649 -9,606 -9.49 5,262 -18.20 0.0444
2021-08-16 2021-06-30 13F DONALDSON COM 257651109 101,255 84,507 504.58 6,433 560.47 0.0516
2021-05-13 2021-03-31 13F DONALDSON COM 257651109 16,748 -1,159 -6.47 974 -2.70 0.0365
2021-02-12 2020-12-31 13F DONALDSON COM 257651109 17,907 58 0.32 1,001 20.75 0.0379
2020-10-30 2020-09-30 13F DONALDSON COM 257651109 17,849 -147 -0.82 829 -0.96 0.0360
2020-08-10 2020-06-30 13F DONALDSON COM 257651109 17,996 -16,280 -47.50 837 -36.78 0.0387
2020-05-13 2020-03-31 13F DONALDSON COM 257651109 34,276 -812 -2.31 1,324 -34.52 0.0324
2020-02-13 2019-12-31 13F DONALDSON COM 257651109 35,088 1,580 4.72 2,022 15.87 0.0372
2019-11-13 2019-09-30 13F DONALDSON COM 257651109 33,508 4,087 13.89 1,745 16.64 0.0367
2019-08-14 2019-06-30 13F DONALDSON COM 257651109 29,421 -837 -2.77 1,496 -1.25 0.0349
2019-05-15 2019-03-31 13F DONALDSON COM 257651109 30,258 415 1.39 1,515 16.99 0.0367
2019-02-15 2018-12-31 13F DONALDSON COM 257651109 29,843 10,268 52.45 1,295 13.60 0.0367
2018-11-14 2018-09-30 13F DONALDSON COM 257651109 19,575 -11,729 -37.47 1,140 -19.26 0.0282
2018-07-18 2018-06-30 13F DONALDSON COM 257651109 31,304 2,421 8.38 1,412 8.53 0.0345
2018-05-22 2018-03-31 13F DONALDSON COM 257651109 28,883 1,599 5.86 1,301 -2.62 0.0345
2018-02-13 2017-12-31 13F DONALDSON COM 257651109 27,284 1,029 3.92 1,336 10.78 0.0362
2017-11-09 2017-09-30 13F DONALDSON COM 257651109 26,255 -612 -2.28 1,206 -1.47 0.0376
2017-08-10 2017-06-30 13F DONALDSON COM 257651109 26,867 6,407 31.31 1,224 31.47 0.0401
2017-05-12 2017-03-31 13F DONALDSON COM 257651109 20,460 -3,725 -15.40 931 -8.55 0.0463
2017-02-14 2016-12-31 13F DONALDSON COM 257651109 24,185 2,324 10.63 1,018 24.75 0.0460
2016-11-15 2016-09-30 13F/A-1 DONALDSON COM 257651109 21,861 126 0.58 816 2.13 0.0474
2016-08-16 2016-06-30 13F DONALDSON COM 257651109 21,735 5,040 30.19 799 49.91 0.0462
2016-05-11 2016-03-31 13F DONALDSON COM 257651109 16,695 1,284 8.33 533 20.59 0.0519
2016-02-10 2015-12-31 13F DONALDSON COM 257651109 15,411 -1,075 -6.52 442 -4.54 0.0545
2015-11-04 2015-09-30 13F DONALDSON COM 257651109 16,486 226 1.39 463 -20.45 0.0486
2015-07-10 2015-06-30 13F DONALDSON COM 257651109 16,260 612 3.91 582 -1.36 0.0572
2015-04-22 2015-03-31 13F DONALDSON COM 257651109 15,648 15,648 0.00 590 0.0720
2015-01-29 2014-12-31 13F DONALDSON COM 257651109 0 -15,013 -100.00 0 -100.00
2014-11-14 2014-09-30 13F DONALDSON COM 257651109 15,013 131 0.88 610 -3.17 0.0908
2014-08-11 2014-06-30 13F DONALDSON COM 257651109 14,882 -1,208 -7.51 630 -7.62 0.0951
2014-05-12 2014-03-31 13F DONALDSON COM 257651109 16,090 -122 -0.75 682 -3.26 0.1175
2014-02-13 2013-12-31 13F DONALDSON COM 257651109 16,212 4,094 33.78 705 52.60 0.1198
2013-11-14 2013-09-30 13F DONALDSON COM 257651109 12,118 12,118 462 0.1484
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.