There have been 50 recent insider transactions recorded for Gritstone bio, Inc. (GRTS), including 33 buys and 15 sells. Total insider buying was valued at $6.07M and total insider selling at $1.62M.
Notable insiders with recent activity include Jones Elaine V, Webster Stephen W, Rizvi Naiyer. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — GRTS
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2025-04-04 |
Jones Elaine V |
Director |
Other (Sell) |
15,942 |
$10.20 |
$162.61K |
- |
| 2025-04-04 |
Webster Stephen W |
Director |
Other (Sell) |
7,379 |
$0.76 |
$5.61K |
- |
| 2025-04-04 |
Rizvi Naiyer |
Director |
Other (Sell) |
10,000 |
$12.02 |
$120.2K |
- |
| 2025-04-04 |
Agarwal Shefali |
Director |
Other (Sell) |
19,000 |
$2.22 |
$42.18K |
- |
| 2025-04-04 |
Economides Vassiliki |
EVP, Chief Financial Officer |
Other (Sell) |
138,000 |
$5.46 |
$753.48K |
- |
| 2025-04-04 |
Cho James |
SVP, Chief Accounting Officer |
Other (Sell) |
40,000 |
$7.14 |
$285.6K |
- |
| 2025-04-04 |
Fisher Clare |
Director |
Other (Sell) |
51,800 |
$0.76 |
$39.37K |
- |
| 2025-04-04 |
Corey Lawrence |
Director |
Other (Sell) |
38,000 |
$4.10 |
$155.8K |
- |
| 2024-12-18 |
Economides Vassiliki |
EVP, Chief Financial Officer |
Informative Sell |
12,000 |
$0.02 |
$180.00 |
250,437 |
| 2024-06-24 |
Allen Andrew R |
President and CEO |
Gift (Given) |
325,000 |
- |
- |
985,360 |
| 2024-06-17 |
Jones Elaine V |
Director |
RSU Award |
51,800 |
$0.76 |
$39.37K |
51,800 |
| 2024-06-17 |
Webster Stephen W |
Director |
RSU Award |
7,379 |
$0.76 |
$5.61K |
7,379 |
| 2024-06-17 |
Rizvi Naiyer |
Director |
RSU Award |
51,800 |
$0.76 |
$39.37K |
51,800 |
| 2024-06-17 |
Agarwal Shefali |
Director |
RSU Award |
51,800 |
$0.76 |
$39.37K |
51,800 |
| 2024-06-17 |
Fisher Clare |
Director |
RSU Award |
51,800 |
$0.76 |
$39.37K |
51,800 |
| 2024-06-17 |
Corey Lawrence |
Director |
RSU Award |
51,800 |
$0.76 |
$39.37K |
51,800 |
| 2024-05-16 |
Allen Andrew R |
President and CEO |
Informative Sell |
24,263 |
$0.75 |
$18.16K |
985,360 |
| 2024-05-16 |
Jones Erin |
EVP, Chief Operating Officer |
Informative Sell |
13,749 |
$0.75 |
$10.29K |
359,293 |
| 2024-05-16 |
Jooss Karin |
See Remarks |
Informative Sell |
13,749 |
$0.75 |
$10.29K |
683,526 |
| 2024-05-16 |
Hawryluk Matthew |
EVP, Chief Business Officer |
Informative Sell |
9,259 |
$0.75 |
$6.93K |
313,931 |
| 2024-05-16 |
Economides Vassiliki |
EVP, Chief Financial Officer |
Informative Sell |
13,749 |
$0.75 |
$10.29K |
262,437 |
| 2024-05-15 |
Allen Andrew R |
President and CEO |
RSU Award |
615,000 |
$0.75 |
$461.25K |
615,000 |
| 2024-05-15 |
Jones Erin |
EVP, Chief Operating Officer |
RSU Award |
235,000 |
$0.75 |
$176.25K |
235,000 |
| 2024-05-15 |
Jooss Karin |
See Remarks |
RSU Award |
235,000 |
$0.75 |
$176.25K |
235,000 |
| 2024-05-15 |
Hawryluk Matthew |
EVP, Chief Business Officer |
RSU Award |
180,000 |
$0.75 |
$135K |
180,000 |
| 2024-05-15 |
Economides Vassiliki |
EVP, Chief Financial Officer |
RSU Award |
215,000 |
$0.75 |
$161.25K |
215,000 |
| 2024-05-03 |
Cho James |
SVP, Chief Accounting Officer |
RSU Award |
65,400 |
$0.96 |
$62.78K |
65,400 |
| 2024-04-26 |
Webster Stephen W |
Director |
Disposition |
- |
- |
- |
25,000 |
| 2024-04-26 |
Webster Stephen W |
Director |
RSU Award |
103,600 |
$0.81 |
$83.92K |
103,600 |
| 2024-02-01 |
Allen Andrew R |
President and CEO |
RSU Award |
615,000 |
$2.46 |
$1.51M |
615,000 |
| 2024-02-01 |
Jones Erin |
EVP, Chief Operating Officer |
RSU Award |
235,000 |
$2.46 |
$578.1K |
235,000 |
| 2024-02-01 |
Jooss Karin |
See Remarks |
RSU Award |
235,000 |
$2.46 |
$578.1K |
235,000 |
| 2024-02-01 |
Hawryluk Matthew |
EVP, Chief Business Officer |
RSU Award |
180,000 |
$2.46 |
$442.8K |
180,000 |
| 2024-02-01 |
Economides Vassiliki |
EVP, Chief Financial Officer |
RSU Award |
215,000 |
$2.46 |
$528.9K |
215,000 |
| 2024-02-01 |
Cho James |
SVP, Chief Accounting Officer |
RSU Award |
109,000 |
$2.46 |
$268.14K |
109,000 |
| 2023-06-16 |
Jones Elaine V |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-06-16 |
Krognes Steve E. |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-06-16 |
Rizvi Naiyer |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-06-16 |
Agarwal Shefali |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-06-16 |
Fisher Clare |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-06-16 |
Corey Lawrence |
Director |
RSU Award |
51,800 |
$2.19 |
$113.44K |
51,800 |
| 2023-05-23 |
Economides Vassiliki |
See Remarks |
Informative Buy |
12,000 |
$1.90 |
$22.83K |
214,058 |
| 2023-02-02 |
Allen Andrew R |
President and CEO |
RSU Award |
738,550 |
- |
- |
856,750 |
| 2023-02-02 |
Jones Erin |
See Remarks |
RSU Award |
252,845 |
- |
- |
305,914 |
| 2023-02-02 |
Jooss Karin |
See Remarks |
RSU Award |
252,763 |
- |
- |
630,147 |
| 2023-02-02 |
Hawryluk Matthew |
See Remarks |
RSU Award |
191,771 |
- |
- |
248,311 |
| 2023-02-02 |
Economides Vassiliki |
See Remarks |
RSU Award |
179,058 |
- |
- |
202,058 |
| 2023-02-02 |
Cho James |
Chief Accounting Officer |
RSU Award |
64,515 |
- |
- |
111,407 |
| 2022-08-12 |
Corey Lawrence |
Director |
Unknown |
- |
- |
- |
- |
| 2022-08-12 |
Corey Lawrence |
Director |
RSU Award |
38,000 |
- |
- |
38,000 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
