Guillermo Briseno

CIK: 0001953256

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (25.0%)

Position reduction

Option Exercises (M)4 (33.3%)

Derivative conversions

Awards (A)4 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)1 (8.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

DCI

DONALDSON Co INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

DCI
DONALDSON Co INC
Mar 26, 2026
Exercise(M)
Direct
8.6K shares at avg. $45.43$391K
DCI
DONALDSON Co INC
Mar 26, 2026
Sale(S)
Direct
8.6K shares at avg. $84.97$731K
DCI
DONALDSON Co INC
Mar 26, 2026
Exercise(M)
Direct
12K shares at avg. $42.72$513K
DCI
DONALDSON Co INC
Mar 26, 2026
Sale(S)
Direct
12K shares at avg. $84.97$1.0M
DCI
DONALDSON Co INC
Oct 1, 2025
Award(A)
Employee Stock Option (right to buy)
Direct
15.3K shares-
DCI
DONALDSON Co INC
Sep 25, 2025
Award(A)
Direct
3.9K shares-
DCI
DONALDSON Co INC
Sep 3, 2025
Sale(S)
Direct
13.5K shares at avg. $79.03$1.1M
DCI
DONALDSON Co INC
Sep 3, 2025
Exercise(M)
Direct
13.5K shares at avg. $28.00$378K
DCI
DONALDSON Co INC
Oct 1, 2024
Award(A)
Employee Stock Option (right to buy)
Direct
18.5K shares-
DCI
DONALDSON Co INC
Sep 27, 2024
Award(A)
Direct
3.1K shares-
DCI
DONALDSON Co INC
Sep 3, 2024
Exercise(M)
Direct
12K shares at avg. $38.78$465K
DCI
DONALDSON Co INC
Sep 3, 2024
Tax Payment(F)
Direct
6.4K shares at avg. $72.73$465K

		Type	Shares	Price		Ownership
Mar 26, 2026	DCI DONALDSON Co INC	Exercise(M)	8,600	$45.43	$390,698	Direct
Mar 26, 2026	DCI DONALDSON Co INC	Sale(S)	8,600	$84.97	$730,742	Direct
Mar 26, 2026	DCI DONALDSON Co INC	Exercise(M)	12,000	$42.72	$512,640	Direct
Mar 26, 2026	DCI DONALDSON Co INC	Sale(S)	12,000	$84.97	$1,019,640	Direct
Oct 1, 2025	DCI DONALDSON Co INC	Award(A) Employee Stock Option (right to buy)	15,300	-	-	Direct
Sep 25, 2025	DCI DONALDSON Co INC	Award(A)	3,935	-	-	Direct
Sep 3, 2025	DCI DONALDSON Co INC	Sale(S)	13,500	$79.03	$1,066,905	Direct
Sep 3, 2025	DCI DONALDSON Co INC	Exercise(M)	13,500	$28.00	$378,000	Direct
Oct 1, 2024	DCI DONALDSON Co INC	Award(A) Employee Stock Option (right to buy)	18,500	-	-	Direct
Sep 27, 2024	DCI DONALDSON Co INC	Award(A)	3,087	-	$0	Direct
Sep 3, 2024	DCI DONALDSON Co INC	Exercise(M)	12,000	$38.78	$465,360	Direct
Sep 3, 2024	DCI DONALDSON Co INC	Tax Payment(F)	6,399	$72.73	$465,399	Direct

1-12 of 12 transactions

About Briseno Guillermo

Briseno Guillermo (SEC CIK 0001953256) files insider reports with the SEC as President of DONALDSON Co INC (DCI).

Signal8 holds 7 ownership filings by Briseno Guillermo, all Form 4s, filed between Sep 5, 2024 and Mar 27, 2026. Those filings report 12 transactions, from Sep 3, 2024 to Mar 26, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Briseno Guillermo's filings is in MINNEAPOLIS, MN.

Recent filings by Briseno Guillermo

Mar 26, 2026: Option exercise of DCI shares (Form 4, code M).
Mar 26, 2026: Open-market sale of DCI shares (Form 4, code S).
Mar 26, 2026: Option exercise of DCI shares (Form 4, code M).
Mar 26, 2026: Open-market sale of DCI shares (Form 4, code S).
Oct 1, 2025: Grant or award of DCI derivative securities (Form 4, code A).

Other insiders filing for DONALDSON Co INC (DCI)

Smiley Jacinth C, Director
Rautio Trudy A., Director
Owens James, Director
Hilger Christopher M., Director
Pogalz Bradley J., Chief Financial Officer
Lewis Richard Brent, President

How to read Form 4 transaction codes