光束治療公司
US ˙ NasdaqGS ˙ US07373V1052

SecurityBEAM / Beam Therapeutics Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership648,264 shares
Latest Disclosed Value $ 15,448,144
Morgan Stanley reports 11.12% decrease in ownership of BEAM / Beam Therapeutics Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 648,264 shares of Beam Therapeutics Inc. (US:BEAM) valued at $15,448,131 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 729,400 shares of Beam Therapeutics Inc.. This represents a change in shares of -11.12% during the quarter. The current value of the position is $21,288,990 USD.

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)
2026-05-15 2026-03-31 13F BEAM THERAPEUTICS COM 07373V105 648,264 -81,136 -11.12 15,448 -23.59 0.0009
2026-05-27 2025-12-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 729,400 84,640 13.13 20,219 29.21 0.0012
2026-02-13 2025-12-31 13F BEAM THERAPEUTICS COM 07373V105 729,400 84,640 20,219 0.0012
2026-05-27 2025-09-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 644,760 -662,396 -50.67 15,648 -29.62 0.0009
2025-11-14 2025-09-30 13F BEAM THERAPEUTICS COM 07373V105 644,760 -662,396 15,648 0.0009
2025-08-15 2025-06-30 13F BEAM THERAPEUTICS COM 07373V105 1,307,156 484,195 58.84 22,235 38.34 0.0014
2025-05-15 2025-03-31 13F BEAM THERAPEUTICS COM 07373V105 822,961 27,642 3.48 16,072 -18.51 0.0011
2025-05-15 2024-12-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 795,319 -412,438 -34.15 19,724 -33.35 0.0014
2025-02-14 2024-12-31 13F BEAM THERAPEUTICS COM 07373V105 795,319 -412,438 19,724 0.0014
2025-05-14 2024-09-30 13F/A-2 BEAM THERAPEUTICS COM 07373V105 1,207,757 403,928 50.25 29,590 57.12 0.0021
2025-02-14 2024-09-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 1,207,757 403,928 29,590 0.0021
2024-11-14 2024-09-30 13F BEAM THERAPEUTICS COM 07373V105 1,207,757 403,928 29,590 0.0021
2025-05-14 2024-06-30 13F/A-2 BEAM THERAPEUTICS COM 07373V105 803,829 -3,319,746 -80.51 18,834 -86.18 0.0015
2024-10-17 2024-06-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 803,829 -3,319,746 18,834 0.0015
2024-08-14 2024-06-30 13F BEAM THERAPEUTICS COM 07373V105 803,829 -3,319,746 18,834 0.0015
2024-10-17 2024-03-31 13F/A-2 BEAM THERAPEUTICS COM 07373V105 4,123,575 -60,767 -1.45 136,243 19.62 0.0109
2024-08-16 2024-03-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 4,123,575 -60,767 136,243 0.0013
2024-05-15 2024-03-31 13F BEAM THERAPEUTICS COM 07373V105 4,123,575 -60,767 136,243 0.0109
2024-08-16 2023-12-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 4,184,342 3,662,213 701.40 113,898 807.04 0.0100
2024-02-13 2023-12-31 13F BEAM THERAPEUTICS COM 07373V105 4,184,342 3,662,213 113,898 0.0100
2023-11-15 2023-09-30 13F BEAM THERAPEUTICS COM 07373V105 522,129 -313,063 -37.48 12,557 -52.91 0.0013
2023-08-14 2023-06-30 13F BEAM THERAPEUTICS COM 07373V105 835,192 105,064 14.39 26,668 19.28 0.0026
2023-05-15 2023-03-31 13F BEAM THERAPEUTICS COM 07373V105 730,128 81,024 12.48 22,357 -11.94 0.0024
2023-02-14 2022-12-31 13F BEAM THERAPEUTICS COM 07373V105 649,104 127,984 24.56 25,386 2.26 0.0029
2022-11-14 2022-09-30 13F BEAM THERAPEUTICS COM 07373V105 521,120 -82,370 -13.65 24,825 6.27 0.0034
2022-10-27 2022-06-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 603,490 52,024 9.43 23,360 -26.07 0.0030
2022-08-15 2022-06-30 13F BEAM THERAPEUTICS COM 07373V105 603,490 52,024 23,360 0.0006
2022-10-27 2022-03-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 551,466 75,378 15.83 31,599 -16.71 0.0043
2022-05-13 2022-03-31 13F BEAM THERAPEUTICS COM 07373V105 551,466 75,378 31,599 0.0043
2022-02-14 2021-12-31 13F BEAM THERAPEUTICS COM 07373V105 476,088 17,464 3.81 37,939 -4.92 0.0047
2021-11-15 2021-09-30 13F BEAM THERAPEUTICS COM 07373V105 458,624 156,990 52.05 39,904 2.78 0.0054
2021-08-23 2021-06-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 301,634 93,439 44.88 38,824 132.98 0.0051
2021-08-16 2021-06-30 13F BEAM THERAPEUTICS COM 07373V105 301,634 93,439 38,824 0.0011
2021-05-17 2021-03-31 13F BEAM THERAPEUTICS COM 07373V105 208,195 152,117 271.26 16,664 264.00 0.0024
2021-02-16 2020-12-31 13F BEAM THERAPEUTICS COM 07373V105 56,078 19,487 53.26 4,578 408.10 0.0007
2020-11-13 2020-09-30 13F BEAM THERAPEUTICS COM 07373V105 36,591 15,891 76.77 901 55.61 0.0002
2020-08-14 2020-06-30 13F BEAM THERAPEUTICS COM 07373V105 20,700 19,004 1,120.52 579 1,830.00 0.0001
2020-05-26 2020-03-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 1,696 1,696 30 0.0000
2020-05-15 2020-03-31 13F BEAM THERAPEUTICS COM 07373V105 1,696 -1,765,369 30 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.