Beam Therapeutics Inc.
MX ˙ BMV ˙ US07373V1052
SecurityMX:BEAM / Beam Therapeutics Inc.
InstitutionSG Americas Securities, LLC
Latest Disclosed Ownership60,180 shares
Latest Disclosed Value $ 1,434
SG Americas Securities, LLC reports 41.84% decrease in ownership of BEAM / Beam Therapeutics Inc.

On April 16, 2026 - SG Americas Securities, LLC filed a 13F-HR form disclosing ownership of 60,180 shares of Beam Therapeutics Inc. (MX:BEAM) valued at $1,434 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 103,469 shares of Beam Therapeutics Inc.. This represents a change in shares of -41.84% 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)
2026-04-16 2026-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 60,180 -43,289 -41.84 1 -50.00 0.0015
2026-01-09 2025-12-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 103,469 60,249 139.40 3 100.00 0.0037
2025-10-23 2025-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 43,220 36,004 498.95 1 0.0035
2025-08-08 2025-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 7,216 -8,822 -55.01 0 0.0005
2025-04-15 2025-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 16,038 3,920 32.35 0 0.0010
2025-01-17 2024-12-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 12,118 1,971 19.42 0 0.0012
2024-10-03 2024-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 10,147 -8,995 -46.99 0 0.0009
2024-07-12 2024-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 19,142 13,018 212.57 0 0.0026
2024-05-06 2024-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 6,124 -8,720 -58.74 0 0.0010
2024-01-12 2023-12-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 14,844 -254 -1.68 0 0.0038
2023-10-13 2023-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 15,098 15,098 0 0.0042
2023-07-10 2023-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 0 -16,277 -100.00 0 0.0000
2023-04-28 2023-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 16,277 12,090 288.75 0 0.0058
2023-02-02 2022-12-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 4,187 -3,578 -46.08 0 -100.00 0.0020
2022-10-31 2022-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 7,765 -20,418 -72.45 370 -66.09 0.0046
2022-07-29 2022-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 28,183 22,566 401.74 1,091 238.82 0.0116
2022-04-29 2022-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 5,617 -8,985 -61.53 322 -72.34 0.0024
2022-02-07 2021-12-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 14,602 -6,065 -29.35 1,164 -35.26 0.0063
2021-11-01 2021-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 20,667 8,440 69.03 1,798 14.23 0.0084
2021-08-12 2021-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 12,227 1,281 11.70 1,574 79.68 0.0073
2021-05-13 2021-03-31 13F BEAM THERAPEUTICS INC COM COM 07373V105 10,946 10,946 876 0.0046
2020-11-09 2020-09-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 0 -6,866 -100.00 0 -100.00
2020-07-20 2020-06-30 13F BEAM THERAPEUTICS INC COM COM 07373V105 6,866 6,866 192 0.0016
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.