Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Boulding Mark Elliott
Over the trailing 90 days, Boulding Mark Elliott (Other at PTC THERAPEUTICS, INC.) traded $2.7M of stock (net selling $791K) in PTCT, per 32 SEC Form 4 transactions.
- Role
- Other
- Companies
- PTCT
- Window
- Trailing 90 days · 32 transactions · CIK 1578852
- Net activity
- −$791K ($947K bought · $1.7M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| PTCT | PTC THERAPEUTICS, INC. | 32 | $947K | $1.7M | −$791K |
Transactions (32)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-06 | PTCT | Sell | 745 | $64K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 601 | $52K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 387 | $32K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 313 | $26K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 833 | $70K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 1.0K | $87K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 2.2K | $0 | Exercise or conversion of derivative security |
| 2026-07-06 | PTCT | Sell | 519 | $45K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 645 | $55K | Open market or private sale |
| 2026-07-06 | PTCT | Sell | 2.8K | $0 | Exercise or conversion of derivative security |
| 2026-07-06 | PTCT | Buy | 2.3K | $89K | Exercise or conversion of derivative security |
| 2026-07-06 | PTCT | Buy | 2.8K | $131K | Exercise or conversion of derivative security |
| 2026-06-17 | PTCT | Sell | 1.7K | $134K | Open market or private sale |
| 2026-06-17 | PTCT | Buy | 2.0K | $94K | Exercise or conversion of derivative security |
| 2026-06-17 | PTCT | Sell | 8.5K | $0 | Exercise or conversion of derivative security |
| 2026-06-17 | PTCT | Buy | 8.5K | $396K | Exercise or conversion of derivative security |
| 2026-06-17 | PTCT | Sell | 2.0K | $0 | Exercise or conversion of derivative security |
| 2026-06-17 | PTCT | Sell | 6.6K | $518K | Open market or private sale |
| 2026-06-17 | PTCT | Sell | 1.9K | $147K | Open market or private sale |
| 2026-06-17 | PTCT | Sell | 309 | $24K | Open market or private sale |
| 2026-05-15 | PTCT | Sell | 2.8K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | PTCT | Sell | 456 | $33K | Open market or private sale |
| 2026-05-15 | PTCT | Buy | 2.8K | $72K | Exercise or conversion of derivative security |
| 2026-05-15 | PTCT | Sell | 2.4K | $170K | Open market or private sale |
| 2026-05-08 | PTCT | Buy | 800 | $37K | Exercise or conversion of derivative security |
| 2026-05-08 | PTCT | Sell | 2.7K | $0 | Exercise or conversion of derivative security |
| 2026-05-08 | PTCT | Sell | 800 | $0 | Exercise or conversion of derivative security |
| 2026-05-08 | PTCT | Buy | 2.7K | $128K | Exercise or conversion of derivative security |
| 2026-05-08 | PTCT | Sell | 840 | $66K | Open market or private sale |
| 2026-05-08 | PTCT | Sell | 600 | $48K | Open market or private sale |
| 2026-05-08 | PTCT | Sell | 200 | $16K | Open market or private sale |
| 2026-05-08 | PTCT | Sell | 1.9K | $151K | Open market or private sale |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
Follow Boulding's next move
Real-time Form 4 alerts, insider track records, and cluster detection — matched to your watchlist.