Meta Platforms, Inc.
MX ˙ BMV ˙ US30303M1027
SecurityMX:META / Meta Platforms, Inc.
InstitutionArdsley Advisory Partners Lp
Latest Disclosed Ownership28,000 shares
Latest Disclosed Value $ 16,021,040
Ardsley Advisory Partners Lp ownership in META / Meta Platforms, Inc.

On May 15, 2026 - Ardsley Advisory Partners Lp filed a 13F-HR form disclosing ownership of 28,000 shares of Meta Platforms, Inc. (MX:META) valued at $16,021,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,000 shares of Meta Platforms, Inc.. This represents a change in shares of 1,300.00% during the quarter.

Ardsley Advisory Partners Lp has a history of taking positions in derivatives of the underlying security (META) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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: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)
2026-05-15 2026-03-31 13F META PLATFORMS CL A 30303M102 28,000 26,000 1,300.00 16,021 1,113.71 2.0426
2026-02-17 2025-12-31 13F META PLATFORMS CL A 30303M102 2,000 2,000 1,320 0.1449
2025-11-14 2025-09-30 13F META PLATFORMS CL A 30303M102 0 -9,500 -100.00 0 -100.00
2025-08-14 2025-06-30 13F META PLATFORMS CL A 30303M102 9,500 9,500 7,012 0.9219
2025-05-15 2025-03-31 13F META PLATFORMS CL A 30303M102 0 -10,000 -100.00 0 -100.00
2025-02-14 2024-12-31 13F META PLATFORMS CL A 30303M102 10,000 10,000 5,855 0.9284
2023-08-14 2023-06-30 13F META PLATFORMS CL A 30303M102 0 -4,200 -100.00 0 -100.00
2023-05-15 2023-03-31 13F META PLATFORMS CL A 30303M102 4,200 4,200 890 0.1955
2018-08-14 2018-06-30 13F FACEBOOK CL A 30303M102 0 -44,000 -100.00 0 -100.00
2018-05-15 2018-03-31 13F FACEBOOK CL A 30303M102 44,000 44,000 7,034 1.0542
2018-02-14 2017-12-31 13F FACEBOOK CL A 30303M102 0 -4,000 -100.00 0 -100.00
2017-11-14 2017-09-30 13F FACEBOOK CL A 30303M102 4,000 4,000 683 0.0908
2017-02-14 2016-12-31 13F FACEBOOK CL A 30303M102 0 -75,500 -100.00 0 -100.00
2016-11-14 2016-09-30 13F FACEBOOK CL A 30303M102 75,500 3,500 4.86 9,684 17.74 1.5316
2016-08-15 2016-06-30 13F FACEBOOK CL A 30303M102 72,000 72,000 0.00 8,225 1.4269
2016-05-16 2016-03-31 13F FACEBOOK CL A 30303M102 0 -120,500 -100.00 0 -100.00
2016-02-16 2015-12-31 13F FACEBOOK CL A 30303M102 120,500 -6,000 -4.74 12,612 10.87 1.6421
2015-11-16 2015-09-30 13F FACEBOOK CL A 30303M102 126,500 -76,500 -37.68 11,375 -35.42 2.7593
2015-08-14 2015-06-30 13F FACEBOOK CL A 30303M102 203,000 47,000 30.13 17,614 37.33 2.2112
2015-05-15 2015-03-31 13F FACEBOOK CL A 30303M102 156,000 156,000 12,826 1.7836
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
(%)
2015-08-14 2015-06-30 13F FACEBOOK CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-15 2015-03-31 13F FACEBOOK CL A Call 10,000 822 n/a n/a n/a
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
(%)
2022-02-14 2021-12-31 13F FACEBOOK CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F FACEBOOK CL A Put 5,000 1,697 n/a n/a n/a
2020-02-14 2019-12-31 13F FACEBOOK CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F FACEBOOK CL A Put 5,000 0.00 890 -7.77 n/a n/a n/a
2019-08-15 2019-06-30 13F/A FACEBOOK CL A Put 5,000 0.00 965 15.85 n/a n/a n/a
2019-08-13 2019-06-30 13F FACEBOOK CL A Put 5,000 965 n/a n/a n/a
2019-05-15 2019-03-31 13F FACEBOOK CL A Put 5,000 0.00 833 27.18 n/a n/a n/a
2019-02-14 2018-12-31 13F FACEBOOK CL A Put 5,000 0.00 655 -20.32 n/a n/a n/a
2018-11-14 2018-09-30 13F FACEBOOK CL A Put 5,000 822 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.