# SUTRO BIOPHARMA INC (STRO)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/STRO/

- Reporting holders: 1
- Reported value: $2.3K
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $2.3K | 140 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 1 | $2.3K |
| Q2 2026 | 102 | $561.6M |
| Q1 2026 | 76 | $361.1M |
| Q4 2025 | 62 | $65.0M |
| Q3 2025 | 87 | $46.4M |
| Q2 2025 | 102 | $39.9M |
| Q1 2025 | 114 | $40.1M |
| Q4 2024 | 123 | $117.9M |
| Q3 2024 | 130 | $217.0M |
| Q2 2024 | 119 | $185.4M |
| Q1 2024 | 117 | $308.4M |
| Q4 2023 | 113 | $240.0M |