# ROCKET PHARMACEUTICALS INC (RCKTW)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/RCKTW/

- Reporting holders: 11
- Reported value: $1.1M
- Shares held by institutions: 1,916,743 of 109,774,597 outstanding
- Held through calls: 98.9%
- Held through puts: 0.3%

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 |
|---|---|---|---|---|
| [GROUP ONE TRADING LLC](https://holderbook.com/funds/932540-group-one-trading-llc/) | $565.7K | 0 | 0.0% | 17 |
| [SIMPLEX TRADING, LLC](https://holderbook.com/funds/1488542-simplex-trading-llc/) | $492.1K | 0 | 0.0% | 23 |
| [BOOTHBAY FUND MANAGEMENT, LLC](https://holderbook.com/funds/1549230-boothbay-fund-management-llc/) | $126.2K | 36,912 | 0.0% | 13 |
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $3.8K | 620,740 | 0.0% | 14 |
| [Sio Capital Management, LLC](https://holderbook.com/funds/1482416-sio-capital-management-llc/) | $1.5K | 400,000 | 0.0% | 14 |
| [Walleye Capital LLC](https://holderbook.com/funds/1758720-walleye-capital-llc/) | $1.4K | 284,345 | 0.0% | 14 |
| [RTW INVESTMENTS, LP](https://holderbook.com/funds/1493215-rtw-investments-lp/) | $1.2K | 350,000 | 0.0% | 14 |
| [LMR Partners LLP](https://holderbook.com/funds/1578621-lmr-partners-llp/) | $364 | 75,731 | 0.0% | 13 |
| [SILVERARC CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1816307-silverarc-capital-management-llc/) | $356 | 104,828 | 0.0% | 14 |
| [Affinity Asset Advisors, LLC](https://holderbook.com/funds/1773195-affinity-asset-advisors-llc/) | $278 | 75,000 | 0.0% | 14 |
| [TORONTO DOMINION BANK](https://holderbook.com/funds/947263-toronto-dominion-bank/) | $49 | 99 | 0.0% | 1 |
| [Ancora Advisors LLC](https://holderbook.com/funds/1446114-ancora-advisors-llc/) | $22 | 6,000 | 0.0% | 14 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $0 | 99 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 11 | $1.1M |
| Q1 2026 | 11 | $1.1M |
| Q4 2025 | 12 | $408.3K |
| Q3 2025 | 12 | $1.6M |
| Q2 2025 | 12 | $601.0K |
| Q1 2025 | 14 | $1.3M |
| Q4 2024 | 11 | $515.7K |
| Q3 2024 | 16 | $709.0K |
| Q2 2024 | 16 | $3.7M |
| Q1 2024 | 18 | $25.8M |
| Q4 2023 | 17 | $35.1M |
| Q3 2023 | 20 | $16.7M |