Donaldson Company, Inc.
US ˙ NYSE ˙ US2576511099

SecurityDCI / Donaldson Company, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership14,232 shares
Latest Disclosed Value $ 1,207,870
Quantbot Technologies LP ownership in DCI / Donaldson Company, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 14,232 shares of Donaldson Company, Inc. (US:DCI) valued at $1,207,870 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 0 shares of Donaldson Company, Inc.. The current value of the position is $1,213,136 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)
2026-05-13 2026-03-31 13F DONALDSON COM 257651109 14,232 14,232 1,208 0.0494
2026-02-10 2025-12-31 13F DONALDSON COM 257651109 0 -17,955 -100.00 0 -100.00
2025-11-12 2025-09-30 13F DONALDSON COM 257651109 17,955 8,617 92.28 1,470 127.05 0.0400
2025-08-13 2025-06-30 13F DONALDSON COM 257651109 9,338 9,338 648 0.0166
2025-05-13 2025-03-31 13F DONALDSON COM 257651109 0 -285 -100.00 0 -100.00
2025-02-11 2024-12-31 13F DONALDSON COM 257651109 285 -22,217 -98.73 19 -98.85 0.0007
2024-11-13 2024-09-30 13F DONALDSON COM 257651109 22,502 18,851 516.32 1,658 535.25 0.0654
2024-08-09 2024-06-30 13F DONALDSON COM 257651109 3,651 -17,859 -83.03 261 -83.75 0.0126
2024-05-06 2024-03-31 13F DONALDSON COM 257651109 21,510 12,655 142.91 1,606 177.85 0.0905
2024-02-14 2023-12-31 13F DONALDSON COM 257651109 8,855 3,778 74.41 579 91.39 0.0336
2023-11-07 2023-09-30 13F DONALDSON COM 257651109 5,077 5,077 303 0.0203
2023-05-12 2023-03-31 13F DONALDSON COM 257651109 0 -881 -100.00 0 -100.00
2023-02-13 2022-12-31 13F DONALDSON COM 257651109 881 881 52 0.0037
2022-08-09 2022-06-30 13F DONALDSON COM 257651109 0 -2,426 -100.00 0 -100.00
2022-05-16 2022-03-31 13F DONALDSON COM 257651109 2,426 1,235 103.69 125 78.57 0.0109
2022-02-11 2021-12-31 13F DONALDSON COM 257651109 1,191 1,191 70 0.0057
2021-11-09 2021-09-30 13F DONALDSON COM 257651109 0 -2,036 -100.00 0 -100.00
2021-08-12 2021-06-30 13F DONALDSON COM 257651109 2,036 2,036 129 0.0101
2021-05-14 2021-03-31 13F DONALDSON COM 257651109 0 -2,488 -100.00 0 -100.00
2021-02-12 2020-12-31 13F DONALDSON COM 257651109 2,488 2,488 139 0.0144
2020-11-16 2020-09-30 13F DONALDSON COM 257651109 0 -1,715 -100.00 0 -100.00
2020-08-13 2020-06-30 13F DONALDSON COM 257651109 1,715 1,715 79 0.0104
2019-05-13 2019-03-31 13F DONALDSON COM 257651109 0 -6,855 -100.00 0 -100.00
2019-02-13 2018-12-31 13F DONALDSON COM 257651109 6,855 6,855 297 0.0291
2018-11-13 2018-09-30 13F DONALDSON COM 257651109 0 -2,044 -100.00 0 -100.00
2018-08-13 2018-06-30 13F DONALDSON COM 257651109 2,044 2,044 92 0.0063
2018-05-11 2018-03-31 13F DONALDSON COM 257651109 0 -1,868 -100.00 0 -100.00
2018-02-12 2017-12-31 13F DONALDSON COM 257651109 1,868 -5,883 -75.90 91 -74.44 0.0084
2017-11-07 2017-09-30 13F DONALDSON COM 257651109 7,751 3,196 70.16 356 71.98 0.0341
2017-08-11 2017-06-30 13F DONALDSON COM 257651109 4,555 4,555 -41.23 207 -41.85 0.0195
2017-05-10 2017-03-31 13F DONALDSON COM 257651109 0 -4,632 -100.00 0 -100.00
2017-02-09 2016-12-31 13F DONALDSON COM 257651109 4,632 -3,026 -39.51 194 -31.93 0.0215
2016-10-31 2016-09-30 13F DONALDSON COM 257651109 7,658 7,658 65.33 285 46.91 0.0317
2016-08-02 2016-06-30 13F DONALDSON COM 257651109 0 -11,426 -100.00 0 -100.00
2016-04-28 2016-03-31 13F DONALDSON COM 257651109 11,426 11,426 0.00 364 0.0583
2015-10-22 2015-09-30 13F DONALDSON COM 257651109 0 0 0 0.0000
2015-01-27 2014-12-31 13F DONALDSON COM 257651109 0 -15,099 -100.00 0 -100.00
2014-10-15 2014-09-30 13F DONALDSON COM 257651109 15,099 15,099 0.00 613 0.0843
2014-07-08 2014-06-30 13F DONALDSON COM 257651109 0 -7,492 -100.00 0 -100.00
2014-05-21 2014-03-31 13F DONALDSON COM 257651109 7,492 1,992 36.22 317 51.67 0.0748
2013-10-28 2013-09-30 13F DONALDSON COM 257651109 5,500 4,900 816.67 209 895.24 0.1295
2013-08-02 2013-06-30 13F DONALDSON COM 257651109 600 600 21 0.0110
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.