BEAM in the 13F filings
Beam Therapeutics Inc · CUSIP 07373V105
- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 18 May 2026
- latest of these filings; the earliest 8 May 2026
- Managers listing it
- 19
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 3 listed it in both
- Shares listed
- 41,168,218
- combined, among listed positions
- Reported value
- $981m
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 14 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,570,190.
Managers listing BEAM in Q1 2026
19 of 19 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 12,452,199 shares now+543,061
- Renaissance Technologies LLCexisting position · 513,578 shares now+357,078
- Citadel Advisors LLCexisting position · 528,970 shares now+273,260
- Man Group PLCnew position · 231,994 shares now+231,994
- Two Sigma Investments LPexisting position · 1,210,853 shares now+90,464
Reductions
- Marshall Wace LLPexisting position · 139,241 shares now-806,588
- ARK Investment Management LLCexisting position · 12,133,433 shares now-333,756
- Millennium Management LLCexisting position · 22,234 shares now-279,416
- Baillie Gifford & Coexisting position · 385,891 shares now-30,333
- T. Rowe Price Associates Incexisting position · 2,713,230 shares now-17,052
New positions and exits
New (2)
Exited (8)
- Woodline Partners LPwas $28m
- Voloridge Investment Management LLCwas $14m
- ExodusPoint Capital Management LPwas $4.5m
- Schonfeld Strategic Advisors LLCwas $3.6m
- Balyasny Asset Management LLCwas $907k
- D. E. Shaw & Co.was $774k
- Hudson Bay Capital Management LPwas $416k
- Walleye Capital LLCwas $37k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q1 2020 | 1 | $3.1m | n.a. | n.a. |
| Q4 2020 | 4 | $705m | n.a. | n.a. |
| Q1 2021 | 6 | $1.1bn | n.a. | n.a. |
| Q2 2021 | 6 | $2.1bn | n.a. | n.a. |
| Q3 2021 | 5 | $769m | n.a. | n.a. |
| Q4 2021 | 3 | $818m | n.a. | n.a. |
| Q1 2022 | 4 | $620m | n.a. | n.a. |
| Q2 2022 | 4 | $457m | n.a. | n.a. |
| Q3 2022 | 5 | $610m | n.a. | n.a. |
| Q4 2022 | 4 | $481m | n.a. | n.a. |
| Q1 2023 | 4 | $397m | n.a. | n.a. |
| Q2 2023 | 3 | $394m | n.a. | n.a. |
| Q3 2023 | 4 | $351m | n.a. | n.a. |
| Q4 2023 | 4 | $389m | 2 | 3 |
| Q1 2024 | 4 | $446m | 2 | 3 |
| Q2 2024 | 3 | $379m | 1 | 3 |
| Q3 2024 | 3 | $370m | 1 | 2 |
| Q4 2024 | 4 | $394m | 3 | 1 |
| Q1 2025 | 5 | $419m | 4 | 1 |
| Q2 2025 | 5 | $358m | 4 | 1 |
| Q3 2025 | 7 | $571m | 5 | 2 |
| Q4 2025 | 6 | $692m | 18 | 8 |
| Q1 2026 | 3 | $540m | 14 | 13 |
| Q2 2026 | 3 | $713m | 17 | 8 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
BEAM and GILD →BEAM and AMGN →BEAM and ARGX →Choose a stock to compare with BEAM →
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 BEAM, latest filings →Back to the 13F Explorer →