WEISS MICHAEL S
CIK: 0001038977•Executive Vice Chairman
OfficerDirector
Primary company: KERYX BIOPHARMACEUTICALS INC (KERX)
WEISS MICHAEL S is a corporate insider (Executive Vice Chairman) at KERYX BIOPHARMACEUTICALS INC (KERX) filing SEC Form 4 transactions. 317 transactions across 8 companies, totaling $4,729,773 in purchases and $16,811,694 in sales. Source: SEC EDGAR.
Companies
Transaction History
Source: SEC EDGAR Form 4 insider transaction filings.
Company | Type | Shares | Price | Value | Shares After | Date | SEC |
|---|---|---|---|---|---|---|---|
| Gift | 803,717 | - | - | 9,156,086 | 11/5/2025 Filed: 11/7/2025 | Filing → | |
| Gift | 3,865,126 | - | - | 9,959,803 | 11/5/2025 Filed: 11/7/2025 | Filing → | |
Checkpoint Therapeutics, Inc. CKPT | U | 187,007 | - | - | 0 | 5/30/2025 Filed: 5/30/2025 | Filing → |
Checkpoint Therapeutics, Inc. CKPT | Award | 50,000 | $1.29 | $65K | 187,007 | 5/29/2025 Filed: 5/30/2025 | Filing → |
Checkpoint Therapeutics, Inc. CKPT | Award | 12,195 | - | - | 137,007 | 5/28/2025 Filed: 5/30/2025 | Filing → |
| Award | 750,000 | - | - | 13,824,929 | 1/29/2025 Filed: 1/30/2025 | Filing → | |
| Award | 454,153 | - | - | 1,801,138 | 1/1/2025 Filed: 1/3/2025 | Filing → | |
Checkpoint Therapeutics, Inc. CKPT | Award | 12,638 | - | - | 124,812 | 12/13/2024 Filed: 12/17/2024 | Filing → |
Checkpoint Therapeutics, Inc. CKPT | Award | 50,000 | - | - | 112,174 | 5/14/2024 Filed: 5/16/2024 | Filing → |
Checkpoint Therapeutics, Inc. CKPT | Award | 32,051 | - | - | 62,174 | 5/14/2024 Filed: 5/16/2024 | Filing → |
| Award | 1,001,908 | - | - | 13,074,929 | 1/6/2024 Filed: 1/8/2024 | Filing → | |
| Award | 216,465 | - | - | 1,346,985 | 1/1/2024 Filed: 1/3/2024 | Filing → | |
| Purchase | 147,058 | $0.00 | $0 | 147,058 | 11/14/2023 Filed: 11/16/2023 | Filing → | |
| Purchase | 147,058 | $1.70 | $250K | 1,130,520 | 11/14/2023 Filed: 11/16/2023 | Filing → | |
| Purchase | 100,000 | $10.13 | $1.01M | 12,073,021 | 8/11/2023 Filed: 8/14/2023 | Filing → | |
| Award | 7,246 | $0.00 | $0 | 49,637 | 7/5/2023 Filed: 7/7/2023 | Filing → | |
Checkpoint Therapeutics, Inc. CKPT | Award | 17,483 | $0.00 | $0 | 30,123 | 6/13/2023 Filed: 6/15/2023 | Filing → |
| Award | 71,664 | $0.00 | $0 | 135,861 | 7/29/2022 Filed: 4/3/2023 | Filing → | |
| Award | 985,000 | $0.00 | $0 | 11,973,021 | 3/12/2023 Filed: 3/14/2023 | Filing → | |
| Purchase | 1,197,604 | $0.83 | $1000K | 14,752,034 | 2/10/2023 Filed: 2/14/2023 | Filing → |
Type
Gift
Shares
803,717
Price
-
Value
-
Type
Gift
Shares
3,865,126
Price
-
Value
-
Checkpoint Therapeutics, Inc.
CKPT
Type
U
Shares
187,007
Price
-
Value
-
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
50,000
Price
$1.29
Value
$65K
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
12,195
Price
-
Value
-
Type
Award
Shares
750,000
Price
-
Value
-
Type
Award
Shares
454,153
Price
-
Value
-
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
12,638
Price
-
Value
-
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
50,000
Price
-
Value
-
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
32,051
Price
-
Value
-
Type
Award
Shares
1,001,908
Price
-
Value
-
Type
Award
Shares
216,465
Price
-
Value
-
Type
Purchase
Shares
147,058
Price
$0.00
Value
$0
Type
Purchase
Shares
147,058
Price
$1.70
Value
$250K
Type
Purchase
Shares
100,000
Price
$10.13
Value
$1.01M
Type
Award
Shares
7,246
Price
$0.00
Value
$0
Checkpoint Therapeutics, Inc.
CKPT
Type
Award
Shares
17,483
Price
$0.00
Value
$0
Type
Award
Shares
71,664
Price
$0.00
Value
$0
Type
Award
Shares
985,000
Price
$0.00
Value
$0
Type
Purchase
Shares
1,197,604
Price
$0.83
Value
$1000K
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