CapitolRadar tracks every publicly disclosed DCI trade by US congress members and corporate insiders: 21 disclosed trades (12 buys, 9 sells) by 2 tracked traders, from 2020-03-05 to 2026-06-18. Updated daily from official filings.
Want a ping when Congress buys DCI? Free email alerts on notable disclosed trades — plus a $100,000 fantasy portfolio to play along against three AI traders. Join free
Donaldson Company, Inc. (DCI) — Industrials · Industrial - Machinery, market cap about $10.1B.
Cluster watch: 7 distinct tracked traders disclosed buying DCI in the last 45 days: Carpenter Tod E. (director, officer: Chairman, President and CEO), Becker Amy C (officer: Chief Legal Officer), Pogalz Bradley J. (officer: Chief Financial Officer), Lewis Richard Brent (officer: President), Driesen Bart C. (officer: President), DeVincke Darcy J (officer: Chief Human Resources Officer).
CapitolRadar analysis
21 tracked DCI trades split between 12 buys and 9 sells
Donaldson Company, Inc. (DCI), an Industrials company in the Industrial - Machinery industry, has 21 tracked trades from March 5, 2020 through June 18, 2026. The activity consists of 12 buys and 9 sells by two distinct traders. Although buys outnumber sells across the full period, the two-trader sample is too small to establish a broad trading pattern or consensus.
The supplied quarterly data show uneven activity rather than a steady cadence. The busiest listed quarter was 2022 Q2, with three trades, all buys. 2022 Q4 had two trades, including one buy. Each other listed quarter had one trade: a buy in 2023 Q4 and 2025 Q1, and no buys in 2023 Q2, 2024 Q1, 2024 Q3, or 2026 Q2. These quarterly observations are small samples, and the listed quarters account for only part of the 21-trade total.
10 of the 12 buys came from Michael McCaul
Michael McCaul recorded 10 DCI buys, most recently on January 23, 2025. Lois Frankel recorded the other two buys, with her latest on March 6, 2020. This means the disclosed buying record is concentrated in one of the two tracked traders, limiting how broadly the activity can be interpreted.
Six other tickers overlap with one DCI buyer each
Among the DCI buyers, one also bought HURN, one bought TSM, one bought EQT, one bought SMNEY, one bought DFIC, and one bought P. The data do not identify whether the same buyer accounts for multiple overlaps, so these entries should not be treated as six separate traders or as evidence of a shared strategy.
Disclosure timing is an important caveat: reported trades can appear up to 45 days after the transaction, so the public record may lag actual activity. Transaction amounts, when disclosed as ranges, are estimates rather than exact values; no amount ranges were provided here.
Analysis written from the tracked record on 2026-09-12; it is refreshed whenever the underlying numbers change.
Activity by quarter
| Quarter | Disclosed trades | Buys | Sells |
|---|---|---|---|
| 2026 Q2 | 1 | 0 | 1 |
| 2025 Q1 | 1 | 1 | 0 |
| 2024 Q3 | 1 | 0 | 1 |
| 2024 Q1 | 1 | 0 | 1 |
| 2023 Q4 | 1 | 1 | 0 |
| 2023 Q2 | 1 | 0 | 1 |
| 2022 Q4 | 2 | 1 | 1 |
| 2022 Q2 | 3 | 3 | 0 |
Who is buying DCI?
| Trader | Disclosed buys | Last buy | Grade |
|---|---|---|---|
| Michael McCaul | 10 | 2025-01-23 | — |
| Lois Frankel | 2 | 2020-03-06 | — |
Disclosed trades in DCI
| Date | Who | Type | Amount | 30d vs SPY |
|---|---|---|---|---|
| 2026-06-18 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2025-01-23 | Michael McCaul | buy | $15,001 - $50,000 | — |
| 2024-08-26 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2024-01-17 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2023-11-01 | Michael McCaul | buy | $15,001 - $50,000 | — |
| 2023-05-04 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2022-12-14 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2022-10-17 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-05-06 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-04-20 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-04-14 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-03-21 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-03-10 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-02-16 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-02-15 | Michael McCaul | buy | $1,001 - $15,000 | — |
| 2022-01-28 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2022-01-11 | Lois Frankel | sell | $1,001 - $15,000 | — |
| 2022-01-10 | Lois Frankel | sell | $1,001 - $15,000 | — |
| 2021-12-14 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2020-03-06 | Lois Frankel | buy | $1,001 - $15,000 | — |
CapitolRadar signal history
NEW PICK 2026-08-28
Donaldson CFO Bradley J. Pogalz disclosed a transaction involving 3,000 DCI shares worth about $128,160. The panel passed because the evidence does not clearly show a voluntary open-market purchase; related reporting describes an option exercise with stock used to cover costs, which is a weaker signal of confidence. A primary filing confirming that he bought the shares with cash on the open market would have materially strengthened the case.
These buyers also bought
Other stocks the tracked buyers of DCI disclosed buying in the last six months: RDDT (1) · META (1) · KEYS (1) · HURN (1) · WDAY (1) · DELL (1).
About Donaldson Company, Inc.
Donaldson Company, Inc. (DCI) is a global enterprise that develops, manufactures, and distributes an extensive range of filtration systems and their corresponding replacement parts. The company's operations are strategically divided into two core business units: Engine Products and Industrial Products. The Engine Products division provides a variety of solutions, including replacement filters for both air and liquid filtration needs, comprehensive air filtration systems, and specialized liquid filtration systems designed for fuel, lubrication, and hydraulic applications. This segment also offe…
Frequently asked questions
Which politicians bought DCI most?
Michael McCaul leads with 10 disclosed buys, followed by Lois Frankel.
How current is this page?
It re-renders from the tracked record on every view and new filings are ingested daily — but STOCK Act disclosures can lag the trade by up to 45 days, so the most recent weeks are always incomplete.
Get alerts when trades like these are disclosed. Free account: fantasy portfolio + email alerts. Premium: a 6-hour head start on every signal.
CapitolRadar tracks publicly disclosed trades (STOCK Act filings and SEC Form 4). Disclosures can lag the trade by up to 45 days. Backtests measure past disclosed buys against the S&P 500 and do not predict future results. Everything on this page is impersonal information for your own research — not investment advice.