Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionRossmore Private Capital
Latest Disclosed Ownership9,680 shares
Latest Disclosed Value $ 5,538,148
Rossmore Private Capital reports 12.75% increase in ownership of META / Meta Platforms, Inc.

On May 1, 2026 - Rossmore Private Capital filed a 13F-HR form disclosing ownership of 9,680 shares of Meta Platforms, Inc. (MX:META) valued at $5,538,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 8,585 shares of Meta Platforms, Inc.. This represents a change in shares of 12.75% 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)
2026-05-01 2026-03-31 13F META PLATFORMS CL A 30303M102 9,680 1,095 12.75 5,538 -2.26 0.4859
2026-02-05 2025-12-31 13F META PLATFORMS CL A 30303M102 8,585 3,317 62.97 5,667 46.48 0.5047
2025-10-30 2025-09-30 13F META PLATFORMS CL A 30303M102 5,268 265 5.30 3,869 4.77 0.4168
2025-08-07 2025-06-30 13F META PLATFORMS CL A 30303M102 5,003 60 1.21 3,693 29.63 0.4311
2025-05-13 2025-03-31 13F META PLATFORMS CL A 30303M102 4,943 97 2.00 2,849 0.39 0.3507
2025-02-13 2024-12-31 13F META PLATFORMS CL A 30303M102 4,846 40 0.83 2,837 3.13 0.3508
2024-11-05 2024-09-30 13F META PLATFORMS CL A 30303M102 4,806 0 0.00 2,751 13.54 0.3399
2024-08-12 2024-06-30 13F META PLATFORMS CL A 30303M102 4,806 41 0.86 2,423 4.76 0.3182
2024-05-13 2024-03-31 13F META PLATFORMS CL A 30303M102 4,765 36 0.76 2,314 38.25 0.3027
2024-02-07 2023-12-31 13F META PLATFORMS CL A 30303M102 4,729 -4 -0.08 1,674 17.82 0.2365
2023-11-13 2023-09-30 13F META PLATFORMS CL A 30303M102 4,733 -10 -0.21 1,421 4.34 0.2152
2023-08-14 2023-06-30 13F META PLATFORMS CL A 30303M102 4,743 48 1.02 1,361 36.78 0.2025
2023-05-02 2023-03-31 13F META PLATFORMS CL A 30303M102 4,695 -4,393 -48.34 995 -6.40 0.1554
2023-02-14 2022-12-31 13F META PLATFORMS CL A 30303M102 9,088 -7,818 -46.24 1,063 53,050.00 0.1702
2022-11-08 2022-09-30 13F META PLATFORMS CL A 30303M102 16,906 -412 -2.38 2 0.00 0.4105
2022-08-11 2022-06-30 13F META PLATFORMS CL A 30303M102 17,318 -3,233 -15.73 3 -50.00 0.4836
2022-05-09 2022-03-31 13F META PLATFORMS CL A 30303M102 20,551 -2,854 -12.19 5 -42.86 0.7115
2022-02-07 2021-12-31 13F META PLATFORMS CL A 30303M102 23,405 78 0.33 8 0.00 1.2292
2021-11-08 2021-09-30 13F FACEBOOK CL A 30303M102 23,327 70 0.30 8 -12.50 1.3555
2021-08-13 2021-06-30 13F FACEBOOK CL A 30303M102 23,257 390 1.71 8 33.33 1.3838
2021-05-10 2021-03-31 13F FACEBOOK CL A 30303M102 22,867 438 1.95 7 0.00 1.2625
2021-02-10 2020-12-31 13F FACEBOOK CL A 30303M102 22,429 -117 -0.52 6 20.00 1.2422
2020-11-10 2020-09-30 13F FACEBOOK CL A 30303M102 22,546 332 1.49 6 -99.90 1.3877
2020-08-05 2020-06-30 13F FACEBOOK CL A 30303M102 22,214 3,948 21.61 5,044 65.54 1.3931
2020-05-07 2020-03-31 13F FACEBOOK CL A 30303M102 18,266 6,506 55.32 3,047 26.22 1.0534
2020-02-10 2019-12-31 13F FACEBOOK CL A 30303M102 11,760 0 0.00 2,414 15.28 0.7447
2019-11-05 2019-09-30 13F FACEBOOK CL A 30303M102 11,760 2,500 27.00 2,094 17.18 0.7042
2019-08-05 2019-06-30 13F FACEBOOK CL A 30303M102 9,260 0 0.00 1,787 15.74 0.6313
2019-04-30 2019-03-31 13F FACEBOOK CL A 30303M102 9,260 -1,892 -16.97 1,544 5.61 0.5685
2019-01-22 2018-12-31 13F FACEBOOK CL A 30303M102 11,152 1,170 11.72 1,462 -10.96 0.6197
2018-10-26 2018-09-30 13F FACEBOOK CL A 30303M102 9,982 3,715 59.28 1,642 34.81 0.6565
2018-07-20 2018-06-30 13F FACEBOOK CL A 30303M102 6,267 2,690 75.20 1,218 112.94 0.7862
2018-05-04 2018-03-31 13F FACEBOOK CL A 30303M102 3,577 107 3.08 572 -6.54 0.5790
2018-03-15 2017-12-31 13F FACEBOOK INC CL A CL A 30303M102 3,470 3,470 612 0.6169
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.