- Corporate Officers - H
- Hallal David
Insider Trading History of Hallal David
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Hallal David since 2015.
This trader's CIK number is 1457477.
At the time of last reporting, Hallal David was the Chief Executive Officer of Scholar Rock Holding Corp. (stock ticker symbol SRRK).
Also see all insider trading activities at Scholar Rock Holding Corp.
Note that in the past
Hallal David also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Iteos Therapeutics, Inc. (ITOS) by Hallal David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ITOS | 0 | $0 | 114,682 | $1,164,403 | 114,682 | $493,132 |
| 2022 | ITOS | 0 | $0 | 29,615 | $597,784 | 29,615 | $113,125 |
| 2021 | ITOS | 0 | $0 | 50,000 | $2,178,500 | 50,000 | $181,250 |
Yearly summary of insider trading at Alexion Pharmaceuticals, Inc. (ALXN) by Hallal David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | ALXN | 0 | $0 | 15,057 | $2,117,503 | 0 | $0 |
| 2015 | ALXN | 0 | $0 | 7,944 | $1,400,331 | 0 | $0 |
Yearly summary of insider trading at Scholar Rock Holding Corp (SRRK) by Hallal David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2026 | SRRK | 0 | $0 | 57,450 | $2,453,115 | 0 | $0 |
Yearly summary of insider trading at Kalaris Therapeutics, Inc. (ALVR) by Hallal David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | ALVR | 0 | $0 | 1,157,004 | $8,927,971 | 0 | $0 |
Insider trading activities at 4 companies by Hallal David:
1. Iteos Therapeutics, Inc. (ITOS)
2. Alexion Pharmaceuticals, Inc. (ALXN)
3. Scholar Rock Holding Corp (SRRK)
4. Kalaris Therapeutics, Inc. (ALVR)
Table 1. Insider trading of Iteos Therapeutics, Inc. (ITOS) by Hallal David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-06-04 | ITOS | Option Ex | 38,227 | 4.30 | 164,376 |
| 2025-06-05 | ITOS | Option Ex | 38,227 | 4.30 | 164,376 |
| 2025-06-04 | ITOS | Sale | 38,227 | 10.07 | 384,945 |
| 2025-06-06 | ITOS | Option Ex | 38,228 | 4.30 | 164,380 |
| 2025-06-05 | ITOS | Sale | 38,227 | 10.15 | 388,004 |
| 2025-06-06 | ITOS | Sale | 38,228 | 10.24 | 391,454 |
| 2022-06-08 | ITOS | Option Ex | 28,444 | 3.80 | 108,172 |
| 2022-06-09 | ITOS | Option Ex | 1,171 | 4.23 | 4,953 |
| 2022-06-08 | ITOS | Sale | 28,444 | 20.21 | 574,938 |
| 2022-06-09 | ITOS | Sale | 1,171 | 19.51 | 22,846 |
| 2021-12-20 | ITOS | Option Ex | 50,000 | 3.62 | 181,250 |
| 2021-12-20 | ITOS | Sale | 50,000 | 43.57 | 2,178,500 |
Table 2. Insider trading of Alexion Pharmaceuticals, Inc. (ALXN) by Hallal David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-08-08 | ALXN | Sale | 332 | 137.14 | 45,530 |
| 2016-04-01 | ALXN | Sale | 1,414 | 136.04 | 192,360 |
| 2016-02-29 | ALXN | Sale | 2,014 | 140.18 | 282,322 |
| 2016-02-05 | ALXN | Sale | 6,722 | 142.86 | 960,291 |
| 2016-02-04 | ALXN | Sale | 629 | 144.43 | 90,846 |
| 2016-02-08 | ALXN | Sale | 3,946 | 138.41 | 546,154 |
| 2015-08-07 | ALXN | Sale | 329 | 190.01 | 62,513 |
| 2015-08-04 | ALXN | Sale | 612 | 196.52 | 120,270 |
| 2015-03-02 | ALXN | Sale | 730 | 180.34 | 131,648 |
| 2015-02-10 | ALXN | Sale | 1,980 | 171.15 | 338,877 |
| 2015-02-09 | ALXN | Sale | 2,920 | 173.93 | 507,875 |
| 2015-02-03 | ALXN | Sale | 765 | 174.02 | 133,125 |
| 2015-02-04 | ALXN | Sale | 608 | 174.38 | 106,023 |
Table 3. Insider trading of Scholar Rock Holding Corp (SRRK) by Hallal David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2026-01-13 | SRRK | Sale | 57,450 | 42.70 | 2,453,115 |
Table 4. Insider trading of Kalaris Therapeutics, Inc. (ALVR) by Hallal David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-10-19 | ALVR | Sale | 600,000 | 8.45 | 5,070,000 |
| 2022-09-29 | ALVR | Sale | 400,000 | 7.35 | 2,940,800 |
| 2022-07-21 | ALVR | Sale | 4,227 | 5.33 | 22,529 |
| 2022-06-03 | ALVR | Sale | 65,725 | 3.67 | 241,079 |
| 2022-04-21 | ALVR | Sale | 4,227 | 5.87 | 24,812 |
| 2022-03-10 | ALVR | Sale | 40,481 | 7.55 | 305,793 |
| 2022-03-11 | ALVR | Sale | 25,244 | 7.37 | 186,073 |
| 2022-01-24 | ALVR | Sale | 17,100 | 8.01 | 136,885 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Hallal David
(Chief Executive Officer of Scholar Rock Holding Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.