Webster Stephen W
CIK: 0001438421
Director
Primary company: Spark Therapeutics, Inc. (ONCE)
Webster Stephen W is a corporate insider at Spark Therapeutics, Inc. (ONCE) filing SEC Form 4 transactions. 111 transactions across 11 companies, totaling $154,732 in purchases and $4,660,409 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 |
|---|---|---|---|---|---|---|---|
| Award | 13,587 | $11.00 | $149K | 13,587 | 6/8/2026 Filed: 6/8/2026 | Filing → | |
NextCure, Inc. NXTC | Award | 18,700 | - | - | 18,700 | 6/20/2025 Filed: 6/24/2025 | Filing → |
| Award | 38,513 | - | - | 38,513 | 6/12/2025 Filed: 6/16/2025 | Filing → | |
Gritstone bio, Inc. GRTS | J | 7,379 | - | - | 0 | 4/4/2025 Filed: 4/8/2025 | Filing → |
Gritstone bio, Inc. GRTS | J | 103,600 | - | - | 0 | 4/4/2025 Filed: 4/8/2025 | Filing → |
Gritstone bio, Inc. GRTS | J | 25,000 | - | - | 0 | 4/4/2025 Filed: 4/8/2025 | Filing → |
| Award | 15,806 | - | - | 15,806 | 6/26/2024 Filed: 6/27/2024 | Filing → | |
NextCure, Inc. NXTC | Award | 18,700 | - | - | 18,700 | 6/20/2024 Filed: 6/21/2024 | Filing → |
Gritstone bio, Inc. GRTS | Award | 7,379 | - | - | 7,379 | 6/17/2024 Filed: 6/20/2024 | Filing → |
Gritstone bio, Inc. GRTS | Award | 103,600 | - | - | 103,600 | 4/26/2024 Filed: 4/30/2024 | Filing → |
NextCure, Inc. NXTC | Award | 14,250 | $0.00 | $0 | 14,250 | 6/22/2023 Filed: 6/23/2023 | Filing → |
| Award | 18,450 | $0.00 | $0 | 18,450 | 6/8/2023 Filed: 6/12/2023 | Filing → | |
TCR2 THERAPEUTICS INC. TCRR | Disposition | 10,482 | $0.00 | $0 | 0 | 6/1/2023 Filed: 6/1/2023 | Filing → |
TCR2 THERAPEUTICS INC. TCRR | Disposition | 12,100 | $0.00 | $0 | 0 | 6/1/2023 Filed: 6/1/2023 | Filing → |
TCR2 THERAPEUTICS INC. TCRR | Disposition | 12,100 | $0.00 | $0 | 0 | 6/1/2023 Filed: 6/1/2023 | Filing → |
TCR2 THERAPEUTICS INC. TCRR | Disposition | 16,800 | $0.00 | $0 | 0 | 6/1/2023 Filed: 6/1/2023 | Filing → |
TCR2 THERAPEUTICS INC. TCRR | Award | 16,800 | $0.00 | $0 | 16,800 | 12/15/2022 Filed: 12/19/2022 | Filing → |
Nabriva Therapeutics plc NBRV | Sale | 7,826 | $0.19 | $1K | 11,447 | 8/2/2022 Filed: 8/4/2022 | Filing → |
NextCure, Inc. NXTC | Award | 14,250 | $0.00 | $0 | 14,250 | 6/23/2022 Filed: 6/24/2022 | Filing → |
| Award | 16,475 | $0.00 | $0 | 16,475 | 6/22/2022 Filed: 6/23/2022 | Filing → |
Type
Award
Shares
13,587
Price
$11.00
Value
$149K
NextCure, Inc.
NXTC
Type
Award
Shares
18,700
Price
-
Value
-
Type
Award
Shares
38,513
Price
-
Value
-
Gritstone bio, Inc.
GRTS
Type
J
Shares
7,379
Price
-
Value
-
Gritstone bio, Inc.
GRTS
Type
J
Shares
103,600
Price
-
Value
-
Gritstone bio, Inc.
GRTS
Type
J
Shares
25,000
Price
-
Value
-
Type
Award
Shares
15,806
Price
-
Value
-
NextCure, Inc.
NXTC
Type
Award
Shares
18,700
Price
-
Value
-
Gritstone bio, Inc.
GRTS
Type
Award
Shares
7,379
Price
-
Value
-
Gritstone bio, Inc.
GRTS
Type
Award
Shares
103,600
Price
-
Value
-
NextCure, Inc.
NXTC
Type
Award
Shares
14,250
Price
$0.00
Value
$0
Type
Award
Shares
18,450
Price
$0.00
Value
$0
TCR2 THERAPEUTICS INC.
TCRR
Type
Disposition
Shares
10,482
Price
$0.00
Value
$0
TCR2 THERAPEUTICS INC.
TCRR
Type
Disposition
Shares
12,100
Price
$0.00
Value
$0
TCR2 THERAPEUTICS INC.
TCRR
Type
Disposition
Shares
12,100
Price
$0.00
Value
$0
TCR2 THERAPEUTICS INC.
TCRR
Type
Disposition
Shares
16,800
Price
$0.00
Value
$0
TCR2 THERAPEUTICS INC.
TCRR
Type
Award
Shares
16,800
Price
$0.00
Value
$0
Nabriva Therapeutics plc
NBRV
Type
Sale
Shares
7,826
Price
$0.19
Value
$1K
NextCure, Inc.
NXTC
Type
Award
Shares
14,250
Price
$0.00
Value
$0
Type
Award
Shares
16,475
Price
$0.00
Value
$0
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