Insider · CIK 0001737231

Zachary Jennifer

Reports to the SEC for 2 companies · RAHWAY, NJ

sec.gov

Transactions

Companies

Filings

CIK

0001737231

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-12	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+41.5K sh	$117.89	+$4.89M	112,391.254
2026-08-12	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+13.4K sh	$84.71	+$1.14M	125,824.254
2026-08-12	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−80.3K sh	$133.46	−$10.7M	45,509.254
2026-08-12	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−41.5K sh	—	—	0
2026-08-12	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−13.4K sh	—	—	0
2026-05-29	RGNXREGENXBIO Inc.A Award	Director	AAward	+9,807 sh	—	—	31,871
2026-05-29	RGNXREGENXBIO Inc. · Stock Options (Right to Buy)A Award	Director	AAward	+46.6K sh	—	—	46,600
2026-05-05	MRKMerck & Co., Inc. · Restricted Stock UnitA Award	EVP, General Counsel	AAward	+12.1K sh	—	—	12,064
2026-05-05	MRKMerck & Co., Inc. · Stock Option (Right to Buy)A Award	EVP, General Counsel	AAward	+35.3K sh	—	—	35,312
2026-04-29	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+2,951 sh	$110.03	+$325K	72,351.254
2026-04-29	MRKMerck & Co., Inc.F Tax Payment	EVP, General Counsel	FTax Payment	−1,454 sh	$110.03	−$160K	70,897.254
2026-04-29	MRKMerck & Co., Inc. · Restricted Stock UnitM Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−2,951 sh	—	—	5,903
2026-02-09	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+25.9K sh	$119.15	+$3.09M	94,861.671
2026-02-09	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−25.9K sh	$119.15	−$3.09M	68,915.671
2026-02-09	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+56.8K sh	$119.15	+$6.77M	125,707.671
2026-02-09	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−56.8K sh	$119.15	−$6.77M	68,915.671
2026-02-09	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+38.8K sh	$119.15	+$4.63M	107,750.671
2026-02-09	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−38.8K sh	$119.15	−$4.63M	68,915.671
2026-02-09	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−25.9K sh	—	—	0
2026-02-09	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−56.8K sh	—	—	0
2026-02-09	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−38.8K sh	—	—	0
2026-01-26	MRKMerck & Co., Inc.A Award	EVP, General Counsel	AAward	+11.6K sh	$107.40	+$1.24M	68,915.671
2025-05-30	RGNXREGENXBIO Inc.A Award	Director	AAward	+7,768 sh	—	—	22,064
2025-05-30	RGNXREGENXBIO Inc. · Stock Options (Right to Buy)A Award	Director	AAward	+39.8K sh	—	—	39,815
2025-04-29	MRKMerck & Co., Inc. · Restricted Stock UnitA Award	EVP, General Counsel	AAward	+8,854 sh	—	—	8,854
2025-04-29	MRKMerck & Co., Inc. · Stock Option (Right to Buy)A Award	EVP, General Counsel	AAward	+40.3K sh	—	—	40,301
2025-01-27	MRKMerck & Co., Inc.A Award	EVP, General Counsel	AAward	+25.4K sh	$97.94	+$2.49M	55,285.685
2024-05-31	RGNXREGENXBIO Inc.A Award	Director	AAward	+4,790 sh	—	—	14,296
2024-05-31	RGNXREGENXBIO Inc. · Stock Options (Right to Buy)A Award	Director	AAward	+24.5K sh	—	—	24,454
2024-04-30	MRKMerck & Co., Inc. · Stock Option (Right to Buy)A Award	EVP, General Counsel	AAward	+35.2K sh	—	—	35,156
2024-02-02	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+19.4K sh	$87.10	+$1.69M	78,556.76
2024-02-02	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−49.5K sh	$126.97	−$6.28M	29,057.76
2024-02-02	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−19.4K sh	—	—	38,835
2024-01-22	MRKMerck & Co., Inc.A Award	EVP, General Counsel	AAward	+23.3K sh	$119.43	+$2.78M	59,139.76
2023-06-02	RGNXREGENXBIO Inc.A Award	Director	AAward	+3,486 sh	—	—	9,506
2023-06-02	RGNXREGENXBIO Inc. · Stock Options (Right to Buy)A Award	Director	AAward	+17.9K sh	—	—	17,892
2023-05-04	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−19.1K sh	$117.59	−$2.25M	35,127.593
2023-05-02	MRKMerck & Co., Inc. · Stock Option (Right to Buy)A Award	EVP, General Counsel	AAward	+41.5K sh	—	—	41,494
2023-02-03	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+75.4K sh	$56.04	+$4.23M	129,355.941
2023-02-03	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−75.4K sh	$103.17	−$7.78M	53,919.941
2023-02-03	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−75.4K sh	—	—	0
2023-01-23	MRKMerck & Co., Inc.A Award	EVP, General Counsel	AAward	+15.6K sh	$109.88	+$1.72M	53,919.941
2022-10-28	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+68.4K sh	—	—	123,015.302
2022-10-28	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+51.9K sh	—	—	174,899.302
2022-10-28	MRKMerck & Co., Inc.M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	+28.4K sh	—	—	203,295.302
2022-10-28	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−99.8K sh	$99.07	−$9.88M	103,527.302
2022-10-28	MRKMerck & Co., Inc.S Sale	EVP, General Counsel	SSale	−65.5K sh	$99.85	−$6.54M	38,040.302
2022-10-28	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−68.4K sh	—	—	0
2022-10-28	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−51.9K sh	—	—	25,946
2022-10-28	MRKMerck & Co., Inc. · Stock Option (Right to Buy)M Exercise/Conversion	EVP, General Counsel	MExercise/Conversion	−28.4K sh	—	—	56,792

Recent filings

Accepted (ET)
Aug 134
Zachary Jennifer0000310158-26-000221
SEC(opens sec.gov)
Jun 24
Zachary Jennifer0001737231-26-000002
SEC(opens sec.gov)
May 74
Zachary Jennifer0000310158-26-000139
SEC(opens sec.gov)
May 14
Zachary Jennifer0000310158-26-000086
SEC(opens sec.gov)
Feb 94
Zachary Jennifer0000310158-26-000046
SEC(opens sec.gov)

Companies

Address

MERCK & CO., INC. 126 EAST LINCOLN AVENUE

RAHWAY, NJ, 07065