Beam Therapeutics Inc.
MX ˙ BMV ˙ US07373V1052
SecurityMX:BEAM / Beam Therapeutics Inc.
InstitutionBaillie Gifford & Co
Latest Disclosed Ownership385,891 shares
Latest Disclosed Value $ 9,195,783
Baillie Gifford & Co reports 7.29% decrease in ownership of BEAM / Beam Therapeutics Inc.

On May 8, 2026 - Baillie Gifford & Co filed a 13F-HR form disclosing ownership of 385,891 shares of Beam Therapeutics Inc. (MX:BEAM) valued at $9,195,783 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 416,224 shares of Beam Therapeutics Inc.. This represents a change in shares of -7.29% 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)
2026-05-08 2026-03-31 13F Beam Therapeutics COM 07373V105 385,891 -30,333 -7.29 9,196 -20.30 0.0034
2026-01-23 2025-12-31 13F Beam Therapeutics COM 07373V105 416,224 118,421 39.76 11,538 59.64 0.0096
2025-10-31 2025-09-30 13F Beam Therapeutics COM 07373V105 297,803 -2,334 -0.78 7,228 41.57 0.0054
2025-08-06 2025-06-30 13F Beam Therapeutics COM 07373V105 300,137 -2,597 -0.86 5,105 -13.65 0.0038
2025-05-07 2025-03-31 13F Beam Therapeutics COM 07373V105 302,734 -5,502 -1.78 5,912 -22.66 0.0052
2025-01-31 2024-12-31 13F Beam Therapeutics COM 07373V105 308,236 -49,462 -13.83 7,644 -12.77 0.0059
2024-11-05 2024-09-30 13F Beam Therapeutics COM 07373V105 357,698 -265,942 -42.64 8,764 -40.02 0.0066
2024-07-25 2024-06-30 13F Beam Therapeutics COM 07373V105 623,640 -128,754 -17.11 14,612 -41.22 0.0114
2024-05-01 2024-03-31 13F Beam Therapeutics COM 07373V105 752,394 -11,729 -1.53 24,859 19.52 0.0193
2024-01-26 2023-12-31 13F Beam Therapeutics COM 07373V105 764,123 -111,624 -12.75 20,799 -1.24 0.0165
2023-11-13 2023-09-30 13F Beam Therapeutics COM 07373V105 875,747 352,014 67.21 21,062 25.95 0.0192
2023-07-28 2023-06-30 13F Beam Therapeutics COM 07373V105 523,733 70,972 15.68 16,723 20.62 0.0142
2023-05-03 2023-03-31 13F Beam Therapeutics COM 07373V105 452,761 -2,067 -0.45 13,864 -22.07 0.0125
2023-03-10 2022-12-31 13F/A-1 Beam Therapeutics COM 07373V105 454,828 69,610 18.07 17,788 -3.07 0.0185
2023-01-24 2022-12-31 13F Beam Therapeutics COM 07373V105 454,828 69,610 18 0.0069
2022-10-27 2022-09-30 13F Beam Therapeutics COM 07373V105 385,218 374,545 3,509.28 18,351 4,343.34 0.0189
2022-08-08 2022-06-30 13F Beam Therapeutics COM 07373V105 10,673 0 0.00 413 -32.52 0.0004
2022-05-05 2022-03-31 13F Beam Therapeutics COM 07373V105 10,673 0 0.00 612 -28.08 0.0004
2022-01-20 2021-12-31 13F Beam Therapeutics COM 07373V105 10,673 -27 -0.25 851 -8.59 0.0005
2021-10-19 2021-09-30 13F Beam Therapeutics COM 07373V105 10,700 10,213 2,097.13 931 1,377.78 0.0005
2021-08-02 2021-06-30 13F Beam Therapeutics COM 07373V105 487 -32 -6.17 63 50.00 0.0000
2021-05-06 2021-03-31 13F Beam Therapeutics COM 07373V105 519 24 4.85 42 5.00 0.0000
2021-02-10 2020-12-31 13F Beam Therapeutics COM 07373V105 495 495 40 0.0000
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.