Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionPenbrook Management LLC
Latest Disclosed Ownership1,700 shares
Latest Disclosed Value $ 972,621
Penbrook Management LLC ownership in META / Meta Platforms, Inc.

On April 21, 2026 - Penbrook Management LLC filed a 13F-HR form disclosing ownership of 1,700 shares of Meta Platforms, Inc. (MX:META) valued at $972,621 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 6, 2026 disclosing 1,700 shares of Meta Platforms, Inc.. This represents a change in shares of 0.00% 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)
2026-04-21 2026-03-31 13F META PLATFORMS INC CL A Stock 30303M102 1,700 0 0.00 973 -13.37 0.7365
2026-01-06 2025-12-31 13F META PLATFORMS INC CL A Stock 30303M102 1,700 0 0.00 1,122 -10.10 0.7740
2025-10-22 2025-09-30 13F META PLATFORMS INC CL A Stock 30303M102 1,700 0 0.00 1,248 -0.48 0.8717
2025-07-28 2025-06-30 13F/A-1 META PLATFORMS INC CL A Stock 30303M102 1,700 0 0.00 1,255 28.09 0.9435
2025-07-25 2025-06-30 13F META PLATFORMS INC CL A Stock 30303M102 1,700 0 980 0.7406
2025-04-01 2025-03-31 13F META PLATFORMS INC CL A Stock 30303M102 1,700 0 0.00 980 -1.61 0.7406
2025-01-23 2024-12-31 13F META PLATFORMS INC CL A Stock 30303M102 1,700 -100 -5.56 995 -3.40 0.6790
2024-10-15 2024-09-30 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 1,030 13.56 0.6698
2024-07-24 2024-06-30 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 908 3.78 0.5540
2024-04-18 2024-03-31 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 874 37.21 0.5417
2024-01-16 2023-12-31 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 637 17.96 0.4281
2023-10-10 2023-09-30 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 540 4.65 0.3960
2023-07-17 2023-06-30 13F META PLATFORMS INC CL A Stock 30303M102 1,800 0 0.00 517 35.43 0.3744
2023-04-20 2023-03-31 13F META PLATFORMS INC CL A Stock 30303M102 1,800 -100 -5.26 381 67.11 0.2923
2023-01-24 2022-12-31 13F META PLATFORMS INC CL A Stock 30303M102 1,900 -535 -21.97 229 -30.91 0.1949
2022-10-31 2022-09-30 13F META PLATFORMS INC CL A Stock 30303M102 2,435 35 1.46 330 -14.73 0.2840
2022-07-29 2022-06-30 13F META PLATFORMS INC CL A Stock 30303M102 2,400 0 0.00 387 -27.53 0.3052
2022-04-26 2022-03-31 13F META PLATFORMS INC CL A Stock 30303M102 2,400 0 0.00 534 -33.83 0.3464
2022-01-10 2021-12-31 13F META PLATFORMS INC CL A Stock 30303M102 2,400 0 0.00 807 -0.98 0.4862
2021-10-26 2021-09-30 13F FACEBOOK INC CL A Stock 30303M102 2,400 0 0.00 815 -2.40 0.5065
2021-07-27 2021-06-30 13F FACEBOOK INC CL A COM 30303M102 2,400 0 0.00 835 18.10 0.5005
2021-05-06 2021-03-31 13F/A-2 FACEBOOK INC CL A Stock 30303M102 2,400 0 0.00 707 7.77 0.5088
2021-05-05 2021-03-31 13F/A-1 FACEBOOK INC CL A Stock 30303M102 2,400 0 707 0.5129
2021-04-16 2021-03-31 13F FACEBOOK INC CL A Stock 30303M102 2,000 -500 334 0.3889
2022-04-25 2020-12-31 13F/A-1 META PLATFORMS INC CL A Stock 30303M102 2,400 0 0.00 656 4.29 0.5053
2021-01-27 2020-12-31 13F FACEBOOK INC CL A COM 30303M102 2,500 100 683 0.4815
2020-10-23 2020-09-30 13F FACEBOOK INC CL A COM 30303M102 2,400 500 26.32 629 45.94 0.5453
2020-07-28 2020-06-30 13F FACEBOOK INC CL A COM 30303M102 1,900 0 0.00 431 35.96 0.4239
2020-04-14 2020-03-31 13F FACEBOOK INC CL A COM 30303M102 1,900 0 0.00 317 -18.72 0.4059
2020-01-16 2019-12-31 13F FACEBOOK INC CL A COM 30303M102 1,900 0 0.00 390 15.38 0.3800
2019-10-11 2019-09-30 13F FACEBOOK INC CL A COM 30303M102 1,900 0 0.00 338 -7.90 0.3667
2019-07-15 2019-06-30 13F FACEBOOK INC CL A COM 30303M102 1,900 -400 -17.39 367 -4.18 0.3938
2019-04-24 2019-03-31 13F FACEBOOK INC CL A COM 30303M102 2,300 0 0.00 383 26.82 0.3982
2019-02-01 2018-12-31 13F FACEBOOK INC CL A COM 30303M102 2,300 -200 -8.00 302 -26.52 0.3446
2018-10-23 2018-09-30 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 411 -15.43 0.3937
2018-07-30 2018-06-30 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 486 21.80 0.4675
2018-04-27 2018-03-31 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 399 -9.52 0.3989
2018-02-21 2017-12-31 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 441 37.38 0.3970
2016-10-27 2016-09-30 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 321 12.24 0.3459
2016-08-05 2016-06-30 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 286 0.35 0.3153
2016-04-21 2016-03-31 13F FACEBOOK INC CL A COM 30303M102 2,500 0 0.00 285 8.78 0.3138
2016-01-29 2015-12-31 13F FACEBOOK INC CL A COM 30303M102 2,500 -200 -7.41 262 7.82 0.2687
2015-11-12 2015-09-30 13F FACEBOOK INC CL A COM 30303M102 2,700 100 3.85 243 8.97 0.2573
2015-08-04 2015-06-30 13F FACEBOOK COM 30303M102 2,600 0 0.00 223 4.21 0.2118
2015-04-27 2015-03-31 13F FACEBOOK COM 30303M102 2,600 2,600 0.00 214 -4.04 0.1901
2015-01-28 2014-12-31 13F FACEBOOK COM 30303M102 0 -2,600 -100.00 0 -100.00
2014-10-16 2014-09-30 13F FACEBOOK COM 30303M102 2,600 2,600 206 0.1899
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.