// company-profile
Sutro Biopharma, Inc. Insider Trading
STROEvery SEC Form 4 insider trading filing for Sutro Biopharma, Inc. (STRO) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.
curl "https://api.form4api.com/v1/transactions?ticker=STRO" -H "X-Api-Key: YOUR_API_KEY"// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Sutro Biopharma, Inc. insiders bought $0 across 10 transactions with no open-market sales.
- Most active insider: Chow Gregory K. with 2 transactions totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Sutro Biopharma, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 5, 2026 | Petree Daniel H | STRO | Award | 10,000 | $0.00 | $0K |
| Jun 5, 2026 | Wigginton Jon Marc | STRO | Award | 10,000 | $0.00 | $0K |
| Jun 5, 2026 | PANEK JAMES P | STRO | Award | 10,000 | $0.00 | $0K |
| Jun 5, 2026 | Lobacki Joseph M | STRO | Award | 10,000 | $0.00 | $0K |
| Jun 5, 2026 | Dybbs Michael | STRO | Award | 10,000 | $0.00 | $0K |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →