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MX ˙ BMV ˙ US07373V1052
SecurityMX:BEAM / Beam Therapeutics Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership5,507 shares
Latest Disclosed Value $ 131,226
Advisor Group Holdings, Inc. ownership in BEAM / Beam Therapeutics Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 5,507 shares of Beam Therapeutics Inc. (MX:BEAM) valued at $131,226 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,655 shares of Beam Therapeutics Inc.. This represents a change in shares of -2.62% during the quarter.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (BEAM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:BEAM / Beam Therapeutics Inc. Historical Put/Call Ratio
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 5,507 -148 -2.62 131 -16.03 0.0001
2026-02-17 2025-12-31 13F BEAM THERAPEUTICS COM 07373V105 5,655 -1,133 -16.69 157 9.86 0.0002
2025-11-14 2025-09-30 13F BEAM THERAPEUTICS COM 07373V105 6,788 208 3.16 143 27.93 0.0002
2025-09-04 2025-06-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 6,580 524 8.65 112 -5.93 0.0002
2025-08-13 2025-06-30 13F BEAM THERAPEUTICS COM 07373V105 7,244 1,188 152 0.0002
2025-05-12 2025-03-31 13F BEAM THERAPEUTICS COM 07373V105 6,056 1,614 36.33 118 7.27 0.0003
2025-06-06 2024-12-31 13F/A-1 BEAM THERAPEUTICS COM 07373V105 4,442 -9,149 -67.32 110 -66.87 0.0002
2025-02-07 2024-12-31 13F BEAM THERAPEUTICS COM 07373V105 3,649 -9,942 90 0.0002
2024-11-13 2024-09-30 13F BEAM THERAPEUTICS COM 07373V105 13,591 671 5.19 333 9.93 0.0008
2024-08-13 2024-06-30 13F BEAM THERAPEUTICS COM 07373V105 12,920 -1,048 -7.50 303 -34.49 0.0007
2024-05-10 2024-03-31 13F BEAM THERAPEUTICS COM 07373V105 13,968 -2,746 -16.43 462 1.54 0.0010
2024-02-12 2023-12-31 13F BEAM THERAPEUTICS COM 07373V105 16,714 3,374 25.29 455 41.88 0.0008
2023-11-13 2023-09-30 13F BEAM THERAPEUTICS COM 07373V105 13,340 228 1.74 321 -23.44 0.0005
2023-08-21 2023-06-30 13F/A-1 BEAM THERAPEUTICS COM 07373V105 13,112 -409 -3.02 419 1.21 0.0008
2023-08-10 2023-06-30 13F BEAM THERAPEUTICS COM 07373V105 13,112 -409 419 0.0001
2023-05-12 2023-03-31 13F BEAM THERAPEUTICS COM 07373V105 13,521 -721 -5.06 414 -25.59 0.0008
2023-02-10 2022-12-31 13F BEAM THERAPEUTICS COM 07373V105 14,242 2,443 20.71 556 -1.07 0.0011
2022-11-14 2022-09-30 13F BEAM THERAPEUTICS COM 07373V105 11,799 -3,090 -20.75 561 -2.94 0.0013
2022-08-10 2022-06-30 13F BEAM THERAPEUTICS COM 07373V105 14,889 418 2.89 578 -29.77 0.0013
2022-05-04 2022-03-31 13F BEAM THERAPEUTICS COM 07373V105 14,471 199 1.39 823 -27.74 0.0016
2022-02-03 2021-12-31 13F BEAM THERAPEUTICS COM 07373V105 14,272 -5,247 -26.88 1,139 -32.88 0.0022
2021-11-05 2021-09-30 13F BEAM THERAPEUTICS COM 07373V105 19,519 2,413 14.11 1,697 -23.32 0.0035
2021-08-02 2021-06-30 13F BEAM THERAPEUTICS COM 07373V105 17,106 4,108 31.60 2,213 112.99 0.0048
2021-05-13 2021-03-31 13F BEAM THERAPEUTICS COM 07373V105 12,998 4,212 47.94 1,039 44.91 0.0025
2021-02-10 2020-12-31 13F BEAM THERAPEUTICS COM 07373V105 8,786 -389 -4.24 717 217.26 0.0019
2020-11-12 2020-09-30 13F BEAM THERAPEUTICS COM 07373V105 9,175 150 1.66 226 -10.67 0.0007
2020-08-14 2020-06-30 13F BEAM THERAPEUTICS COM 07373V105 9,025 9,025 253 0.0008
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-08-13 2024-06-30 13F BEAM THERAPEUTICS CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-10 2024-03-31 13F BEAM THERAPEUTICS CALL Call 2 0.00 2 100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F BEAM THERAPEUTICS INC CALL COM Call 2 2 n/a n/a n/a
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.