Douglas A. Treco - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
Douglas A. Treco has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $1.14M.
Profile
Douglas A. Treco is a corporate insider at CRISPR Therapeutics AG (CRSP). SEC records also connect Treco to Inozyme Pharma, Inc. (INZY). Treco has reported 4 insider filings with the SEC since 2024. The most recent filing was in June 2026.
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- CRISPR Therapeutics AG
- Inozyme Pharma, Inc.
Trading Pattern
InsiderAlpha's records for Douglas A. Treco go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $1.14M (1 buy totaling $1.14M). The largest single buy on record is $1.14M of CRSP in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Douglas A. Treco has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Insider at CRISPR Therapeutics AG (CRSP) - 2 filings, 2025 to 2026
- CEO Chairman at Inozyme Pharma, Inc. (INZY) - 1 filing, 2025
- CEO at Inozyme Pharma, Inc. (INZY) - 1 filing, 2024
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-08 | CRSP | CRISPR Therapeutics AG | P - Open-market purchase | 20.0K | $57.03 | $1.14M |
| 2025-07-01 | INZY | Inozyme Pharma, Inc. | J - Other acquisition / disposition | 43.9K | $4.00 | $175K |
| 2024-10-03 | INZY | Inozyme Pharma, Inc. | A - Grant or award | 1.7K | $4.45 | $8K |
Companies - Last 90 Days
- CRISPR Therapeutics AG (CRSP) - 1 filing, last 2026-06-09
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Douglas A. Treco has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Samarth Kulkarni - $11.52M of CRSP open-market activity in the last 12 months
- Raju Prasad - $5.10M of CRSP open-market activity in the last 12 months
- James R. Kasinger - $646K of CRSP open-market activity in the last 12 months
- Naimish Patel - $412K of CRSP open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Robert W. Duggan
- John Earl
- EcoR1 Capital, LLC
- ECP ControlCo, LLC
- ECP Fiber Holdings GP, LLC
- Electrum Strategic Resources L.P.
- Ariel Emanuel
- Retirement System Of The State Of Hawaii Employees'
Frequently Asked Questions
Who is Douglas A. Treco?
Douglas A. Treco is a corporate insider at CRISPR Therapeutics AG (CRSP). SEC records also connect Treco to Inozyme Pharma, Inc. (INZY). Treco has reported 4 insider filings with the SEC since 2024. The most recent filing was in June 2026.…
How many SEC Form 4 filings has Douglas A. Treco submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Douglas A. Treco been buying or selling stock?
Recorded transactions: 1 open-market purchase ($1.14M) and 0 open-market sales across all tracked filings.
Where can I see all of Douglas A. Treco's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Douglas A. Treco profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.