Oosthuizen Johannes Jacobus
SEC insider (Form 3/4/5 filer). CIK 0001916310. Director at Vylor Inc. (VYLR) and 1 other issuer. 13 reported Form 4/5 transactions since Sep 2024; latest on Oct 22, 2026. Located in RAHWAY, NJ.
Companies Oosthuizen Johannes Jacobus has filed insider reports for
- Vylor Inc. (VYLR): Director
- Merck & Co., Inc. (MRK): Officer, President, U.S. Market
Oosthuizen Johannes Jacobus
CIK: 0001916310
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (13 total)
- Oct 22, 2026VYLR
Vylor Inc.
AwardDirect2.6K shares- - May 5, 2026MRK
Merck & Co., Inc.
AwardDirectStock Option (Right to Buy)
31K shares- - May 5, 2026MRK
Merck & Co., Inc.
AwardDirectRestricted Stock Unit
10.6K shares- - Apr 29, 2026MRK
Merck & Co., Inc.
ExerciseDirect1.4K shares at avg. $110.03$152K - Apr 29, 2026MRK
Merck & Co., Inc.
Tax PaymentDirect679 shares at avg. $110.03$75K - Feb 6, 2026MRK
Merck & Co., Inc.
SaleDirect15K shares at avg. $121.87$1.8M - Jan 26, 2026MRK
Merck & Co., Inc.
AwardDirect5K shares at avg. $107.40$540K - Apr 29, 2025MRK
Merck & Co., Inc.
AwardDirectStock Option (Right to Buy)
18.8K shares- - Apr 29, 2025MRK
Merck & Co., Inc.
AwardDirectRestricted Stock Unit
4.1K shares- - Feb 19, 2025MRK
Merck & Co., Inc.
SaleDirect8.5K shares at avg. $84.09$715K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 22, 2026 |  VYLR Vylor Inc. | Award | 2,610 | - | $0 | Direct |
| May 5, 2026 |  MRK Merck & Co., Inc. | Award Stock Option (Right to Buy) | 31,044 | - | - | Direct |
| May 5, 2026 | MRK Merck & Co., Inc. | Award Restricted Stock Unit | 10,605 | - | - | Direct |
| Apr 29, 2026 | MRK Merck & Co., Inc. | Exercise | 1,377 | $110.03 | $151,511 | Direct |
| Apr 29, 2026 | MRK Merck & Co., Inc. | Tax Payment | 679 | $110.03 | $74,710 | Direct |
| Feb 6, 2026 | MRK Merck & Co., Inc. | Sale | 15,000 | $121.87 | $1,827,992 | Direct |
| Jan 26, 2026 | MRK Merck & Co., Inc. | Award | 5,026 | $107.40 | $539,792 | Direct |
| Apr 29, 2025 | MRK Merck & Co., Inc. | Award Stock Option (Right to Buy) | 18,807 | - | - | Direct |
| Apr 29, 2025 | MRK Merck & Co., Inc. | Award Restricted Stock Unit | 4,132 | - | - | Direct |
| Feb 19, 2025 | MRK Merck & Co., Inc. | Sale | 8,500 | $84.09 | $714,745 | Direct |
1-10 of 13 transactions