Beam Therapeutics Inc.
MX ˙ BMV ˙ US07373V1052
SecurityMX:BEAM / Beam Therapeutics Inc.
InstitutionTwinbeech Capital Lp
Latest Disclosed Ownership13,260 shares
Latest Disclosed Value $ 315,986
Twinbeech Capital Lp ownership in BEAM / Beam Therapeutics Inc.

On May 15, 2026 - Twinbeech Capital Lp filed a 13F-HR form disclosing ownership of 13,260 shares of Beam Therapeutics Inc. (MX:BEAM) valued at $315,986 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 0 shares of Beam Therapeutics Inc..

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 13,260 13,260 316 0.0327
2025-11-14 2025-09-30 13F BEAM THERAPEUTICS COM 07373V105 0 -47,836 -100.00 0 -100.00
2025-08-14 2025-06-30 13F BEAM THERAPEUTICS COM 07373V105 47,836 -191,077 -79.98 814 -82.57 0.0184
2025-05-15 2025-03-31 13F BEAM THERAPEUTICS COM 07373V105 238,913 111,249 87.14 4,666 47.35 0.0847
2025-02-14 2024-12-31 13F BEAM THERAPEUTICS COM 07373V105 127,664 69,456 119.32 3,166 122.02 0.0542
2024-11-14 2024-09-30 13F BEAM THERAPEUTICS COM 07373V105 58,208 58,208 1,426 0.0272
2024-08-14 2024-06-30 13F BEAM THERAPEUTICS COM 07373V105 0 -34,641 -100.00 0 -100.00
2024-05-15 2024-03-31 13F BEAM THERAPEUTICS COM 07373V105 34,641 34,641 1,145 0.0236
2023-11-14 2023-09-30 13F BEAM THERAPEUTICS COM 07373V105 0 -12,846 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BEAM THERAPEUTICS COM 07373V105 12,846 -114,933 -89.95 410 -89.52 0.0081
2023-05-15 2023-03-31 13F BEAM THERAPEUTICS COM 07373V105 127,779 127,779 3,913 0.0792
2023-02-14 2022-12-31 13F BEAM THERAPEUTICS COM 07373V105 0 -50,216 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BEAM THERAPEUTICS COM 07373V105 50,216 50,216 2,392 0.0631
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.