Michael Graham O'Brien

CIK: 0002034804

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (1.5%)

Position reduction

Option Exercises (M)86 (64.2%)

Derivative conversions

Awards (A)5 (3.7%)

Compensation grants

Other (G, F, J, C, D, …)41 (30.6%)

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

Companies & Roles (1)

GTM

ZoomInfo Technologies Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (134 total)

GTM
ZoomInfo Technologies Inc.
Nov 1, 2026
Exercise(M)
Direct
3.5K shares-
GTM
ZoomInfo Technologies Inc.
Nov 1, 2026
Exercise(M)
Direct
1.5K shares-
GTM
ZoomInfo Technologies Inc.
Nov 1, 2026
Tax Payment(F)
Direct
758 shares at avg. $4.36$3K
GTM
ZoomInfo Technologies Inc.
Nov 1, 2026
Exercise(M)
Direct
23.2K shares-
GTM
ZoomInfo Technologies Inc.
Nov 1, 2026
Tax Payment(F)
Direct
13.1K shares at avg. $4.36$57K
GTM
ZoomInfo Technologies Inc.
Oct 9, 2026
Sale(S)
Direct
5K shares at avg. $4.00$20K
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
1.6K shares-
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Tax Payment(F)
Direct
32.8K shares at avg. $3.79$124K
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
49.2K shares-
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
7.1K shares-
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
7.8K shares-
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
765 shares-
GTM
ZoomInfo Technologies Inc.
Oct 1, 2026
Exercise(M)
Direct
223 shares-
GTM
ZoomInfo Technologies Inc.
Sep 1, 2026
Exercise(M)
Direct
328 shares-
GTM
ZoomInfo Technologies Inc.
Sep 1, 2026
Tax Payment(F)
Direct
268 shares at avg. $4.24$1K
GTM
ZoomInfo Technologies Inc.
Sep 1, 2026
Exercise(M)
Direct
214 shares-
GTM
ZoomInfo Technologies Inc.
Aug 6, 2026
Sale(S)
Direct
5K shares at avg. $4.00$20K
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Tax Payment(F)
Direct
758 shares at avg. $3.30$3K
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Exercise(M)
Direct
91.4K shares-
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Tax Payment(F)
Direct
61.1K shares at avg. $3.30$202K
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Exercise(M)
Direct
3.5K shares-
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Exercise(M)
Direct
1.5K shares-
GTM
ZoomInfo Technologies Inc.
Aug 1, 2026
Exercise(M)
Direct
29.4K shares-
GTM
ZoomInfo Technologies Inc.
Jul 1, 2026
Exercise(M)
Direct
7.8K shares-
GTM
ZoomInfo Technologies Inc.
Jul 1, 2026
Exercise(M)
Direct
764 shares-

		Type	Shares	Price		Ownership
Nov 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	3,469	-	$0	Direct
Nov 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	1,542	-	$0	Direct
Nov 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	758	$4.36	$3,305	Direct
Nov 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	23,193	-	$0	Direct
Nov 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	13,106	$4.36	$57,142	Direct
Oct 9, 2026	GTM ZoomInfo Technologies Inc.	Sale(S)	5,000	$4.00	$20,005	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	1,555	-	$0	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	32,783	$3.79	$124,248	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	49,219	-	$0	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	7,119	-	$0	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	7,813	-	$0	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	765	-	$0	Direct
Oct 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	223	-	$0	Direct
Sep 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	328	-	$0	Direct
Sep 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	268	$4.24	$1,136	Direct
Sep 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	214	-	$0	Direct
Aug 6, 2026	GTM ZoomInfo Technologies Inc.	Sale(S)	5,000	$4.00	$20,003	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	758	$3.30	$2,501	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	91,384	-	$0	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Tax Payment(F)	61,073	$3.30	$201,541	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	3,469	-	$0	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	1,541	-	$0	Direct
Aug 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	29,400	-	$0	Direct
Jul 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	7,812	-	$0	Direct
Jul 1, 2026	GTM ZoomInfo Technologies Inc.	Exercise(M)	764	-	$0	Direct

1-25 of 134 transactions

…

About O'Brien Michael Graham

O'Brien Michael Graham (SEC CIK 0002034804) files insider reports with the SEC as CFO of ZoomInfo Technologies Inc. (GTM).

Signal8 holds 32 ownership filings by O'Brien Michael Graham (1 Form 3, 31 Form 4), filed between Sep 10, 2024 and Nov 3, 2026. Those filings report 134 transactions, from Sep 10, 2024 to Nov 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on O'Brien Michael Graham's filings is in VANCOUVER, WA.

Recent filings by O'Brien Michael Graham

Nov 1, 2026: Option exercises of GTM shares (2 lines, Form 4, code M).
Nov 1, 2026: Tax withholding of GTM shares (Form 4, code F).
Nov 1, 2026: Option exercise of GTM shares (Form 4, code M).
Nov 1, 2026: Tax withholding of GTM shares (Form 4, code F).
Oct 9, 2026: Open-market sale of GTM shares (Form 4, code S).

Other insiders filing for ZoomInfo Technologies Inc. (GTM)

HSKB Funds II, LLC, 10% Owner
Schuck Henry, Chief Executive Officer
Roth James M, Chief Revenue Officer
McGrane Ashley, General Counsel and Corp Sec
Maida Domenic, Director
Gleeson Alison, Director

How to read Form 4 transaction codes