DYN in the 13F filings
Dyne Therapeutics Inc · CUSIP 26818M108
- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 15 May 2025
- latest of these filings; the earliest 15 May 2025
- Managers listing it
- 5
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 3 listed it in both
- Shares listed
- 12,550,452
- combined, among listed positions
- Reported value
- $141m
- combined, at the quarter end
1 line marked †. Value as filed implies a price far from other filers'. Each counts in holders and value as filed, and is left out of the net change in shares.
Among the 95 comparable managers: 4 buyers (opened or added shares) and 2 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing DYN in Q1 2025
5 of 5 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Janus Henderson Group Ltd† Value as filed implies a price far from other filers'. | 10,353,416 | $118m | 0.06% | Added | +2,974,107 | 15 May 2025 (the filing on sec.gov) |
| Voloridge Investment Management LLC | 1,388,425 | $15m | 0.05% | Added | n.a. | 15 May 2025 (the filing on sec.gov) |
| Woodline Partners LP | 574,435 | $6.0m | under 0.1% | Added | +478 | 15 May 2025 (the filing on sec.gov) |
| PDT Partners LLC | 224,176 | $2.3m | 0.17% | New | new | 15 May 2025 (the filing on sec.gov) |
| Farallon Capital Management LLC | 10,000 | $105k | under 0.1% | Trimmed | -219,121 | 15 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Janus Henderson Group Ltdexisting position · 10,353,416 shares now+2,974,107
- PDT Partners LLCnew position · 224,176 shares now+224,176
- Woodline Partners LPexisting position · 574,435 shares now+478
Reductions
- Farallon Capital Management LLCexisting position · 10,000 shares now-219,121
New positions and exits
New (1)
- PDT Partners LLC$2.3m
Exited (1)
- Man Group PLCwas $18m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2020 | 3 | $11m | n.a. | n.a. |
| Q4 2020 | 1 | $10m | n.a. | n.a. |
| Q1 2021 | 1 | $5.9m | n.a. | n.a. |
| Q2 2021 | 2 | $19m | n.a. | n.a. |
| Q3 2021 | 2 | $17m | n.a. | n.a. |
| Q4 2021 | 2 | $21m | n.a. | n.a. |
| Q1 2022 | 2 | $26m | n.a. | n.a. |
| Q2 2022 | 1 | $4.6m | n.a. | n.a. |
| Q3 2022 | 1 | $19m | n.a. | n.a. |
| Q4 2022 | 2 | $17m | n.a. | n.a. |
| Q1 2023 | 1 | $432k | n.a. | n.a. |
| Q2 2023 | 1 | $4.3m | n.a. | n.a. |
| Q3 2023 | 1 | $3.0m | n.a. | n.a. |
| Q4 2023 | 1 | $5.8m | 1 | 0 |
| Q1 2024 | 4 | $123m | 3 | 1 |
| Q2 2024 | 5 | $433m | 5 | 0 |
| Q3 2024 | 5 | $392m | 3 | 2 |
| Q4 2024 | 6 | $287m | 4 | 2 |
| Q1 2025 | 5 | $141m | 4 | 2 |
| Q2 2025 | 3 | $94m | 1 | 1 |
| Q3 2025 | 5 | $228m | 3 | 1 |
| Q4 2025 | 5 | $291m | 15 | 14 |
| Q1 2026 | 5 | $264m | 13 | 14 |
| Q2 2026 | 3 | $288m | 12 | 11 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
DYN and LLY →DYN and JNJ →DYN and VRTX →Choose a stock to compare with DYN →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own DYN, latest filings →Back to the 13F Explorer →