Beam Therapeutics Inc.
MX ˙ BMV ˙ US07373V1052
SecurityMX:BEAM / Beam Therapeutics Inc.
InstitutionNikko Asset Management Americas, Inc.
Latest Disclosed Ownership3,825,585 shares
Latest Disclosed Value $ 91,163,691
Nikko Asset Management Americas, Inc. reports 13.24% decrease in ownership of BEAM / Beam Therapeutics Inc.

On May 7, 2026 - Nikko Asset Management Americas, Inc. filed a 13F-HR form disclosing ownership of 3,825,585 shares of Beam Therapeutics Inc. (MX:BEAM) valued at $91,163,691 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 4,409,300 shares of Beam Therapeutics Inc.. This represents a change in shares of -13.24% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F BEAM THERAPEUTICS COM 07373V105 3,825,585 -583,715 -13.24 91,164 -25.39 1.2894
2026-02-11 2025-12-31 13F BEAM THERAPEUTICS COM 07373V105 4,409,300 -421,438 -8.72 122,182 4.21 1.4121
2025-11-12 2025-09-30 13F BEAM THERAPEUTICS COM 07373V105 4,830,738 103,939 2.20 117,242 45.82 1.1360
2025-08-11 2025-06-30 13F BEAM THERAPEUTICS COM 07373V105 4,726,799 456,779 10.70 80,403 -3.44 0.8020
2025-05-07 2025-03-31 13F BEAM THERAPEUTICS COM 07373V105 4,270,020 312,409 7.89 83,265 -15.13 1.0734
2025-02-10 2024-12-31 13F BEAM THERAPEUTICS COM 07373V105 3,957,611 404,782 11.39 98,109 12.71 1.0632
2024-11-07 2024-09-30 13F BEAM THERAPEUTICS COM 07373V105 3,552,829 1,328,414 59.72 87,044 67.16 0.9860
2024-08-09 2024-06-30 13F BEAM THERAPEUTICS COM 07373V105 2,224,415 -137,402 -5.82 52,074 -33.15 0.6011
2024-05-02 2024-03-31 13F BEAM THERAPEUTICS COM 07373V105 2,361,817 3,726 0.16 77,893 21.53 0.7735
2024-02-08 2023-12-31 13F BEAM THERAPEUTICS COM 07373V105 2,358,091 715,911 43.60 64,093 62.42 0.6161
2023-11-09 2023-09-30 13F BEAM THERAPEUTICS COM 07373V105 1,642,180 427,100 35.15 39,462 1.71 0.4717
2023-08-14 2023-06-30 13F BEAM THERAPEUTICS COM 07373V105 1,215,080 556,514 84.50 38,798 94.50 0.4084
2023-05-03 2023-03-31 13F BEAM THERAPEUTICS COM 07373V105 658,566 -15,124 -2.24 19,948 -24.29 0.2298
2023-02-13 2022-12-31 13F BEAM THERAPEUTICS COM 07373V105 673,690 162,759 31.86 26,348 10.90 0.3795
2022-11-14 2022-09-30 13F BEAM THERAPEUTICS COM 07373V105 510,931 218,969 75.00 23,758 120.76 0.3035
2022-08-04 2022-06-30 13F BEAM THERAPEUTICS COM 07373V105 291,962 8,453 2.98 10,762 -33.98 0.1329
2022-05-06 2022-03-31 13F BEAM THERAPEUTICS COM 07373V105 283,509 58,286 25.88 16,302 -9.63 0.1197
2022-02-08 2021-12-31 13F BEAM THERAPEUTICS COM 07373V105 225,223 -29,132 -11.45 18,040 -18.53 0.0949
2021-11-09 2021-09-30 13F BEAM THERAPEUTICS COM 07373V105 254,355 724 0.29 22,142 -32.85 0.0951
2021-08-09 2021-06-30 13F BEAM THERAPEUTICS COM 07373V105 253,631 24,230 10.56 32,972 79.58 0.1291
2021-05-03 2021-03-31 13F Beam Therapeutics COM 07373V105 229,401 25,159 12.32 18,361 10.12 0.0899
2021-02-11 2020-12-31 13F Beam Therapeutics COM 07373V105 204,242 204,242 16,674 0.0947
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.