Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionWestside Investment Management, Inc.
Latest Disclosed Ownership15,510 shares
Latest Disclosed Value $ 8,881,046
Westside Investment Management, Inc. ownership in META / Meta Platforms, Inc.

On May 4, 2026 - Westside Investment Management, Inc. filed a 13F-HR form disclosing ownership of 15,510 shares of Meta Platforms, Inc. (MX:META) valued at $8,881,046 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 15,395 shares of Meta Platforms, Inc.. This represents a change in shares of 0.75% during the quarter.

Westside Investment Management, Inc. has a history of taking positions in derivatives of the underlying security (META) in the form of stock options.

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:META / Meta Platforms, 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)
2026-05-04 2026-03-31 13F META PLATFORMS COM 30303M102 15,510 115 0.75 8,881 -12.37 0.6619
2026-01-23 2025-12-31 13F META PLATFORMS COM 30303M102 15,395 197 1.30 10,135 -8.81 1.6213
2025-11-04 2025-09-30 13F META PLATFORMS COM 30303M102 15,198 182 1.21 11,114 0.71 1.7757
2025-08-05 2025-06-30 13F META PLATFORMS COM 30303M102 15,016 879 6.22 11,036 35.13 2.0467
2025-04-25 2025-03-31 13F META PLATFORMS COM 30303M102 14,137 31 0.22 8,168 -1.11 1.7399
2025-01-17 2024-12-31 13F META PLATFORMS COM 30303M102 14,106 -66 -0.47 8,260 3.69 1.7407
2024-11-20 2024-09-30 13F META PLATFORMS COM 30303M102 14,172 5 0.04 7,965 11.51 1.6961
2024-07-17 2024-06-30 13F META PLATFORMS COM 30303M102 14,167 103 0.73 7,143 4.43 1.6350
2024-04-19 2024-03-31 13F META PLATFORMS COM 30303M102 14,064 -1,533 -9.83 6,840 23.89 1.6397
2024-01-12 2023-12-31 13F META PLATFORMS COM 30303M102 15,597 -67 -0.43 5,521 17.42 1.4117
2023-11-15 2023-09-30 13F META PLATFORMS COM 30303M102 15,664 -17 -0.11 4,702 4.54 1.3541
2023-07-14 2023-06-30 13F META PLATFORMS COM 30303M102 15,681 -65 -0.41 4,498 34.79 1.2701
2023-05-17 2023-03-31 13F META PLATFORMS COM 30303M102 15,746 -566 -3.47 3,337 1,308.02 0.9799
2023-01-31 2022-12-31 13F META PLATFORMS COM 30303M102 16,312 -418 -2.50 237 -35.60 0.5848
2022-11-09 2022-09-30 13F META PLATFORMS COM 30303M102 16,730 2,568 18.13 369 -2.39 0.8819
2022-07-15 2022-06-30 13F META PLATFORMS COM 30303M102 14,162 834 6.26 378 -0.26 0.8544
2022-04-25 2022-03-31 13F META PLATFORMS COM 30303M102 13,328 1,457 12.27 378 -28.81 0.8299
2022-02-15 2021-12-31 13F FACEBOOK INC COM 30303M102 11,871 1,097 10.18 532 0.00 1.2127
2021-10-27 2021-09-30 13F FACEBOOK INC COM 30303M102 10,774 -775 -6.71 531 -2.03 1.2249
2021-07-28 2021-06-30 13F FACEBOOK INC COM 30303M102 11,549 -110 -0.94 542 18.86 1.2574
2021-04-14 2021-03-31 13F FACEBOOK COM 30303M102 11,659 1,375 13.37 457 -24.38 1.2047
2021-01-15 2020-12-31 13F FACEBOOK COM 30303M102 10,284 -141 -1.35 603 4.33 1.6536
2020-10-14 2020-09-30 13F FACEBOOK COM 30303M102 10,425 1,756 20.26 578 102.81 0.2631
2020-07-21 2020-06-30 13F FACEBOOK COM 30303M102 8,669 -2,125 -19.69 286 64.74 0.1682
2020-04-16 2020-03-31 13F FACEBOOK COM 30303M102 10,794 1,688 18.54 173 -13.07 0.1182
2019-07-24 2019-06-30 13F FACEBOOK COM 30303M102 9,106 -1,360 -12.99 199 -85.71 0.4404
2019-02-05 2018-12-31 13F FACEBOOK COM 30303M102 10,466 113 1.09 1,393 -16.74 0.5103
2018-11-08 2018-09-30 13F FACEBOOK COM 30303M102 10,353 391 3.92 1,673 -15.38 0.5350
2018-08-13 2018-06-30 13F FACEBOOK COM 30303M102 9,962 1,468 17.28 1,978 49.89 0.6961
2018-04-16 2018-03-31 13F FACEBOOK COM 30303M102 8,494 -251 -2.87 1,320 -19.87 0.7251
2018-02-15 2017-12-31 13F FACEBOOK COM 30303M102 8,745 -26 -0.30 1,646 8.86 0.8920
2017-11-13 2017-09-30 13F FACEBOOK COM 30303M102 8,771 -117 -1.32 1,513 10.85 0.9132
2017-09-14 2017-06-30 13F/A-1 FACEBOOK COM 30303M102 8,888 -2,384 -21.15 1,364 -14.64 0.8903
2017-08-15 2017-06-30 13F FACEBOOK COM 30303M102 8,888 -2,384 1,364
2017-05-11 2017-03-31 13F FACEBOOK COM 30303M102 11,272 3,528 45.56 1,599 63.73 0.7635
2017-05-11 2016-12-31 13F FACEBOOK COM 30303M102 7,744 7,744 976 0.6644
Disclosed Put 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
(%)
2018-08-13 2018-06-30 13F FACEBOOK INC PUT OPTN Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-04-16 2018-03-31 13F FACEBOOK INC PUT OPTN Put 2 2 n/a n/a n/a
2018-02-15 2017-12-31 13F FACEBOOKPUT OPTN Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-13 2017-09-30 13F FACEBOOKPUT OPTN Put 15 0 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.