Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionHemenway Trust Co LLC
Latest Disclosed Ownership648 shares
Latest Disclosed Value $ 370,740
Hemenway Trust Co LLC reports 16.55% increase in ownership of META / Meta Platforms, Inc.

On May 7, 2026 - Hemenway Trust Co LLC filed a 13F-HR form disclosing ownership of 648 shares of Meta Platforms, Inc. (MX:META) valued at $370,740 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 556 shares of Meta Platforms, Inc.. This represents a change in shares of 16.55% 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)
2026-05-07 2026-03-31 13F META PLATFORMS COM 30303M102 648 92 16.55 371 0.82 0.0298
2026-02-03 2025-12-31 13F META PLATFORMS COM 30303M102 556 -164 -22.78 367 -30.49 0.0281
2025-11-07 2025-09-30 13F META PLATFORMS COM 30303M102 720 -20 -2.70 529 -3.30 0.0405
2025-07-23 2025-06-30 13F META PLATFORMS COM 30303M102 740 -52 -6.57 546 19.74 0.0423
2025-04-18 2025-03-31 13F META PLATFORMS COM 30303M102 792 73 10.15 457 8.31 0.0372
2025-02-13 2024-12-31 13F META PLATFORMS COM 30303M102 719 34 4.96 421 7.40 0.0341
2024-11-05 2024-09-30 13F META PLATFORMS COM 30303M102 685 -5 -0.72 392 12.97 0.0310
2024-08-05 2024-06-30 13F META PLATFORMS COM 30303M102 690 -5 -0.72 348 2.97 0.0298
2024-05-06 2024-03-31 13F META PLATFORMS COM 30303M102 695 -5 -0.71 337 36.44 0.0292
2024-02-13 2023-12-31 13F META PLATFORMS COM 30303M102 700 -10 -1.41 248 15.96 0.0237
2023-11-14 2023-09-30 13F META PLATFORMS COM 30303M102 710 0 0.00 213 4.93 0.0223
2023-08-11 2023-06-30 13F META PLATFORMS COM 30303M102 710 710 204 0.0200
2023-02-08 2022-12-31 13F META PLATFORMS COM 30303M102 0 -2,222 -100.00 0 -100.00
2022-11-08 2022-09-30 13F META PLATFORMS COM 30303M102 2,222 -203 -8.37 301 -23.02 0.0354
2022-07-19 2022-06-30 13F META PLATFORMS COM 30303M102 2,425 -50 -2.02 391 -28.91 0.0445
2022-05-16 2022-03-31 13F META PLATFORMS COM 30303M102 2,475 175 7.61 550 -28.94 0.0528
2022-02-08 2021-12-31 13F META PLATFORMS COM 30303M102 2,300 253 12.36 774 11.37 0.0705
2021-11-10 2021-09-30 13F FACEBOOK COM 30303M102 2,047 -84 -3.94 695 -6.21 0.0702
2021-08-09 2021-06-30 13F FACEBOOK COM 30303M102 2,131 74 3.60 741 22.28 0.0747
2021-05-17 2021-03-31 13F FACEBOOK COM 30303M102 2,057 -30 -1.44 606 6.32 0.0663
2021-02-16 2020-12-31 13F FACEBOOK COM 30303M102 2,087 -429 -17.05 570 -13.51 0.0652
2020-10-28 2020-09-30 13F FACEBOOK COM 30303M102 2,516 926 58.24 659 82.55 0.0857
2020-07-28 2020-06-30 13F FACEBOOK COM 30303M102 1,590 -110 -6.47 361 27.11 0.0502
2020-05-07 2020-03-31 13F FACEBOOK COM 30303M102 1,700 -192 -10.15 284 -26.80 0.0480
2020-01-15 2019-12-31 13F FACEBOOK COM 30303M102 1,892 5 0.26 388 15.48 0.0558
2019-11-04 2019-09-30 13F FACEBOOK COM 30303M102 1,887 -200 -9.58 336 -16.63 0.0526
2019-07-24 2019-06-30 13F FACEBOOK COM 30303M102 2,087 -1,000 -32.39 403 -21.75 0.0622
2019-04-29 2019-03-31 13F/A-1 FACEBOOK COM 30303M102 3,087 602 24.23 515 57.98 0.0830
2019-04-29 2019-03-31 13F FACEBOOK COM 30303M102 3,087 515
2019-01-24 2018-12-31 13F FACEBOOK COM 30303M102 2,485 88 3.67 326 -17.26 0.0666
2018-10-15 2018-09-30 13F FACEBOOK COM 30303M102 2,397 225 10.36 394 -6.64 0.0664
2018-07-30 2018-06-30 13F FACEBOOK COM 30303M102 2,172 -125 -5.44 422 14.99 0.0779
2018-04-24 2018-03-31 13F FACEBOOK COM 30303M102 2,297 -50 -2.13 367 -11.35 0.0698
2018-02-02 2017-12-31 13F FACEBOOK COM 30303M102 2,347 0 0.00 414 3.24 0.0789
2017-10-26 2017-09-30 13F FACEBOOK COM 30303M102 2,347 100 4.45 401 18.29 0.0837
2017-07-21 2017-06-30 13F FACEBOOK COM 30303M102 2,247 2,247 339 0.0754
2017-05-15 2017-03-31 13F FACEBOOK Common Stock 30303M102 0 -947 -100.00 0 -100.00
2017-02-10 2016-12-31 13F FACEBOOK Common Stock 30303M102 947 947 109 0.0275
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.