ADVERUM BIOTECHNOLOGIES INC
COM · CUSIP 00773U108
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $6.86.
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 79 |
| Q4 2022 | 60 |
| Q1 2023 | 56 |
| Q2 2023 | 59 |
| Q3 2023 | 62 |
| Q4 2023 | 62 |
| Q1 2024 | 3 |
| Q2 2024 | 2 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 19 | 47 |
| Q1 2023 | 20 | 26 |
| Q2 2023 | 20 | 29 |
| Q3 2023 | 25 | 28 |
| Q4 2023 | 25 | 25 |
| Q1 2024 | 2 | 62 |
| Q2 2024 | 0 | 2 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $419.7k | $300 | 0.00 |
| Q4 2023 | $42.4k | $3.0k | 0.07 |
| Q1 2024 | $0 | $0 | — |
| Q2 2024 | $0 | $0 | — |
Biggest buyers
| None |
Biggest sellers
| Frazier Life Sciences Management, L.P. | Sold out | -1.1m |
| Versant Venture Management, LLC | Reduced | -1 |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| TCG Crossover GP II, LLC 13G · passive investor filed 2025-05-15 | 8.9% |
Fell to 5% or below in the last year: BML Investment Partners, L.P. (0.0%, 2025-12-09)
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| TCG Crossover Management, LLC 1.44% of their portfolio | 2.0m $13.8m | Unchanged |
| Versant Venture Management, LLC 4.50% of their portfolio | 506.8k $3.5m | Reduced -1 |