Insider · CIK 0001966857

Buonasera David

Reports to the SEC for 1 company · NEW YORK, NY

sec.gov

Transactions

Companies

Filings

CIK

0001966857

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-14	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,165 sh	$24.00	−$28K	245,155
2026-09-02	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,043 sh	$25.00	−$26.1K	246,320
2026-09-01	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−5,371 sh	$23.42	−$126K	247,363
2026-08-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−8,102 sh	$24.73	−$200K	252,734
2026-08-06	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−4,176 sh	$22.81	−$95.3K	264,309
2026-08-06	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−2,602 sh	$24.00	−$62.4K	261,707
2026-08-06	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−871 sh	$25.00	−$21.8K	260,836
2026-07-07	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,224 sh	$21.00	−$25.7K	268,485
2026-07-01	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−9,376 sh	$20.00	−$188K	269,709
2026-06-17	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,409 sh	$19.00	−$26.8K	279,085
2026-06-16	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−11.2K sh	$18.00	−$202K	280,494
2026-06-15	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,057 sh	$17.00	−$18K	291,727
2026-06-01	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,409 sh	$15.00	−$21.1K	292,784
2026-05-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−8,335 sh	$12.82	−$107K	294,193
2026-02-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−17.1K sh	$11.70	−$201K	302,095
2026-01-09	MGNIMAGNITE, INC.M Exercise/Conversion	CHIEF TECHNOLOGY OFFICER	MExercise/Conversion	+22.9K sh	—	—	331,562
2026-01-09	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−12.3K sh	$16.17	−$199K	319,232
2026-01-09	MGNIMAGNITE, INC. · Performance Stock UnitsM Exercise/Conversion	CHIEF TECHNOLOGY OFFICER	MExercise/Conversion	−22.9K sh	—	—	0
2026-01-01	MGNIMAGNITE, INC.A Award	CHIEF TECHNOLOGY OFFICER	AAward	+76.8K sh	—	—	308,627
2026-01-01	MGNIMAGNITE, INC. · Performance Stock UnitsA Award	CHIEF TECHNOLOGY OFFICER	AAward	+25.8K sh	—	—	25,801
2025-11-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−7,129 sh	$14.15	−$101K	231,824
2025-09-03	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−2,950 sh	$25.37	−$74.8K	238,629
2025-08-18	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−7,834 sh	$23.85	−$187K	241,579
2025-06-30	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−9,289 sh	$22.00	−$204K	249,413
2025-05-27	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−8,742 sh	$16.00	−$140K	258,702
2025-05-23	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−3,653 sh	$15.03	−$54.9K	267,444
2025-05-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−8,038 sh	$15.88	−$128K	271,097
2025-02-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−17.4K sh	$20.00	−$348K	278,795
2025-01-09	MGNIMAGNITE, INC.A Award	CHIEF TECHNOLOGY OFFICER	AAward	+72.4K sh	—	—	296,179
2025-01-09	MGNIMAGNITE, INC. · Performance Stock UnitsA Award	CHIEF TECHNOLOGY OFFICER	AAward	+24.4K sh	—	—	24,366
2024-12-13	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,969 sh	$16.31	−$32.1K	223,795
2024-11-27	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−431 sh	$16.78	−$7,232.18	225,764
2024-11-22	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−9,219 sh	$17.00	−$157K	226,195
2024-11-18	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−277 sh	$15.77	−$4,368.29	235,414
2024-11-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−5,056 sh	$15.85	−$80.1K	235,691
2024-09-01	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−5,287 sh	$13.79	−$72.9K	252,815
2024-08-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−3,760 sh	$12.51	−$47K	268,102
2024-08-15	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−10K sh	$12.65	−$127K	258,102
2024-05-16	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−5,500 sh	$12.50	−$68.8K	271,862
2024-05-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−7,632 sh	$9.80	−$74.8K	276,242
2024-02-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−6,765 sh	$9.74	−$65.9K	283,874
2024-01-02	MGNIMAGNITE, INC.A Award	CHIEF TECHNOLOGY OFFICER	AAward	+85.1K sh	—	—	290,639
2024-01-02	MGNIMAGNITE, INC. · Performance Stock UnitsA Award	CHIEF TECHNOLOGY OFFICER	AAward	+30.3K sh	—	—	30,339
2023-11-15	MGNIMAGNITE, INC.F Tax Payment	CHIEF TECHNOLOGY OFFICER	FTax Payment	−1,665 sh	$7.89	−$13.1K	205,581
2023-09-06	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−5,444 sh	$8.58	−$46.7K	207,246
2023-08-16	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−2,648 sh	$8.31	−$22K	212,690
2023-07-03	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−6,624 sh	$13.43	−$89K	215,338
2023-05-16	MGNIMAGNITE, INC.S Sale	CHIEF TECHNOLOGY OFFICER	SSale	−1,559 sh	$10.88	−$17K	221,962
2023-02-28	MGNIMAGNITE, INC.A Award	CHIEF TECHNOLOGY OFFICER	AAward	+46.9K sh	—	—	221,557
2023-02-28	MGNIMAGNITE, INC. · Performance Stock UnitsA Award	CHIEF TECHNOLOGY OFFICER	AAward	+18.2K sh	—	—	18,152

Recent filings

Accepted (ET)
Sep 164
Buonasera David0001966857-26-000015
SEC(opens sec.gov)
Sep 34
Buonasera David0001966857-26-000013
SEC(opens sec.gov)
Aug 184
Buonasera David0001966857-26-000011
SEC(opens sec.gov)
Aug 74
Buonasera David0001966857-26-000009
SEC(opens sec.gov)
Jul 94
Buonasera David0001193125-26-299750
SEC(opens sec.gov)
Jul 24
Buonasera David0001193125-26-295113
SEC(opens sec.gov)
Jun 174
Buonasera David0001193125-26-274503
SEC(opens sec.gov)
Jun 34
Buonasera David0001966857-26-000006
SEC(opens sec.gov)
May 194
Buonasera David0001966857-26-000005
SEC(opens sec.gov)
Feb 184
Buonasera David0001966857-26-000004
SEC(opens sec.gov)
Jan 124
Buonasera David0001966857-26-000003
SEC(opens sec.gov)
Jan 54
Buonasera David0001966857-26-000001
SEC(opens sec.gov)

Companies

MAGNITE, INC.CHIEF TECHNOLOGY OFFICERMGNI

Address

C/O MAGNITE, INC. 1250 BROADWAY, 9TH FLOOR

NEW YORK, NY, 10001