Novavax, Inc.
MX ˙ BMV ˙ US6700024010
SecurityMX:NVAX / Novavax, Inc.
InstitutionWalleye Trading LLC
Latest Disclosed Ownership40,148 shares
Latest Disclosed Value $ 326,805
Walleye Trading LLC ownership in NVAX / Novavax, Inc.

On May 8, 2026 - Walleye Trading LLC filed a 13F-HR form disclosing ownership of 40,148 shares of Novavax, Inc. (MX:NVAX) valued at $326,805 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 172,680 shares of Novavax, Inc.. This represents a change in shares of -76.75% during the quarter.

Walleye Trading LLC has a history of taking positions in derivatives of the underlying security (NVAX) in the form of stock options. The firm currently holds call options representing 82,300 of underlying shares valued at $669,922 USD and put options representing 165,700 of underlying shares valued at $1,348,798 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:NVAX / Novavax, 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)
2026-05-08 2026-03-31 13F NOVAVAX COM NEW 670002401 40,148 -132,532 -76.75 327 -71.90 0.0005
2026-02-13 2025-12-31 13F NOVAVAX COM NEW 670002401 172,680 43,167 33.33 1,160 3.39 0.0017
2025-11-14 2025-09-30 13F NOVAVAX COM NEW 670002401 129,513 -39,263 -23.26 1,123 5.55 0.0017
2025-08-13 2025-06-30 13F NOVAVAX COM NEW 670002401 168,776 72,532 75.36 1,063 72.56 0.0019
2025-05-14 2025-03-31 13F NOVAVAX COM NEW 670002401 96,244 45,057 88.02 617 49.88 0.0014
2025-02-13 2024-12-31 13F NOVAVAX COM NEW 670002401 51,187 49,651 3,232.49 412 2,063.16 0.0009
2024-11-14 2024-09-30 13F NOVAVAX COM NEW 670002401 1,536 -34,854 -95.78 19 -95.87 0.0000
2024-08-14 2024-06-30 13F NOVAVAX COM NEW 670002401 36,390 36,390 461 0.0011
2024-02-14 2023-12-31 13F NOVAVAX COM NEW 670002401 0 -15,704 -100.00 0 -100.00
2023-11-21 2023-09-30 13F/A-1 NOVAVAX COM NEW 670002401 15,704 15,704 114 0.0003
2023-11-14 2023-09-30 13F NOVAVAX COM NEW 670002401 15,704 15,704 114 0.0003
2022-11-14 2022-09-30 13F NOVAVAX COM NEW 670002401 0 -2,628 -100.00 0 -100.00
2022-08-08 2022-06-30 13F NOVAVAX COM NEW 670002401 2,628 2,628 135 0.0004
2020-11-16 2020-09-30 13F NOVAVAX COM NEW 670002401 0 -1,379 -100.00 0 -100.00
2020-08-14 2020-06-30 13F NOVAVAX COM NEW 670002401 1,379 1,379 115 0.0007
2019-02-14 2018-12-31 13F NOVAVAX COM 670002104 0 -3,112 -100.00 0 -100.00
2018-11-14 2018-09-30 13F NOVAVAX COM 670002104 3,112 3,112 6 0.0000
2017-08-14 2017-06-30 13F NOVAVAX COM 670002104 0 -451,000 -100.00 0 -100.00
2017-05-15 2017-03-31 13F NOVAVAX COM 670002104 451,000 451,000 577 0.0040
2016-05-16 2016-03-31 13F NOVAVAX COM 670002104 0 -3,000 -100.00 0 -100.00
2016-02-16 2015-12-31 13F NOVAVAX COM 670002104 3,000 1,500 100.00 25 127.27 0.0002
2015-11-16 2015-09-30 13F NOVAVAX COM 670002104 1,500 1,000 200.00 11 83.33 0.0001
2015-08-14 2015-06-30 13F NOVAVAX COM 670002104 500 500 6 0.0001
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
(%)
2026-05-08 2026-03-31 13F NOVAVAX COM NEW Call 82,300 -26.19 670 -10.68 n/a n/a n/a
2026-02-13 2025-12-31 13F NOVAVAX COM NEW Call 111,500 -32.18 749 -47.44 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Call 164,400 -57.81 1,425 -41.96 n/a n/a n/a
2025-08-13 2025-06-30 13F NOVAVAX COM NEW Call 389,700 13.15 2,455 11.24 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Call 344,400 154.55 2,208 103.04 n/a n/a n/a
2025-02-13 2024-12-31 13F NOVAVAX COM NEW Call 135,300 -1.60 1,088 -37.38 n/a n/a n/a
2024-11-14 2024-09-30 13F NOVAVAX COM NEW Call 137,500 7.76 1,737 7.49 n/a n/a n/a
2024-08-14 2024-06-30 13F NOVAVAX COM NEW Call 127,600 -46.72 1,615 41.17 n/a n/a n/a
2024-05-15 2024-03-31 13F NOVAVAX COM NEW Call 239,500 -43.75 1,145 -44.00 n/a n/a n/a
2024-02-14 2023-12-31 13F NOVAVAX COM NEW Call 425,800 -9.15 2,044 -39.79 n/a n/a n/a
2023-11-21 2023-09-30 13F/A NOVAVAX COM NEW Call 468,700 0.82 3,393 -1.77 n/a n/a n/a
2023-11-14 2023-09-30 13F NOVAVAX COM NEW Call 468,700 3,393 n/a n/a n/a
2023-08-14 2023-06-30 13F NOVAVAX COM NEW Call 464,900 75.17 3,454 87.82 n/a n/a n/a
2023-05-15 2023-03-31 13F NOVAVAX COM NEW Call 265,400 96.88 1,839 32.78 n/a n/a n/a
2023-02-14 2022-12-31 13F NOVAVAX COM NEW Call 134,800 88.27 1,386 6.29 n/a n/a n/a
2022-11-14 2022-09-30 13F NOVAVAX COM NEW Call 71,600 393.79 1,303 74.66 n/a n/a n/a
2022-08-08 2022-06-30 13F NOVAVAX COM NEW Call 14,500 -76.65 746 -83.69 n/a n/a n/a
2022-05-16 2022-03-31 13F NOVAVAX COM NEW Call 62,100 179.73 4,574 44.02 n/a n/a n/a
2022-02-14 2021-12-31 13F NOVAVAX COM NEW Call 22,200 -57.47 3,176 -70.65 n/a n/a n/a
2021-11-15 2021-09-30 13F NOVAVAX COM NEW Call 52,200 91.21 10,822 86.71 n/a n/a n/a
2021-08-16 2021-06-30 13F NOVAVAX COM NEW Call 27,300 1,200.00 5,796 1,421.26 n/a n/a n/a
2021-05-17 2021-03-31 13F NOVAVAX COM NEW Call 2,100 -19.23 381 31.38 n/a n/a n/a
2021-02-16 2020-12-31 13F NOVAVAX COM NEW Call 2,600 -84.43 290 -83.97 n/a n/a n/a
2020-11-16 2020-09-30 13F NOVAVAX COM NEW Call 16,700 695.24 1,809 933.71 n/a n/a n/a
2020-08-14 2020-06-30 13F NOVAVAX COM NEW Call 2,100 175 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
(%)
2026-05-08 2026-03-31 13F NOVAVAX COM NEW Put 165,700 -55.37 1,349 -45.97 n/a n/a n/a
2026-02-13 2025-12-31 13F NOVAVAX COM NEW Put 371,300 -11.17 2,495 -31.15 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Put 418,000 -1.85 3,624 35.07 n/a n/a n/a
2025-08-13 2025-06-30 13F NOVAVAX COM NEW Put 425,900 88.79 2,683 85.55 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Put 225,600 -4.08 1,446 -23.53 n/a n/a n/a
2025-02-13 2024-12-31 13F NOVAVAX COM NEW Put 235,200 17.72 1,891 -25.05 n/a n/a n/a
2024-11-14 2024-09-30 13F NOVAVAX COM NEW Put 199,800 -36.45 2,523 -36.61 n/a n/a n/a
2024-08-14 2024-06-30 13F NOVAVAX COM NEW Put 314,400 1.95 3,980 170.01 n/a n/a n/a
2024-05-15 2024-03-31 13F NOVAVAX COM NEW Put 308,400 16.77 1,474 16.34 n/a n/a n/a
2024-02-14 2023-12-31 13F NOVAVAX COM NEW Put 264,100 -29.67 1,268 -53.38 n/a n/a n/a
2023-11-21 2023-09-30 13F/A NOVAVAX COM NEW Put 375,500 1.27 2,719 -1.34 n/a n/a n/a
2023-11-14 2023-09-30 13F NOVAVAX COM NEW Put 375,500 2,719 n/a n/a n/a
2023-08-14 2023-06-30 13F NOVAVAX COM NEW Put 370,800 811.06 2,755 876.95 n/a n/a n/a
2023-05-15 2023-03-31 13F NOVAVAX COM NEW Put 40,700 -32.39 282 -54.37 n/a n/a n/a
2023-02-14 2022-12-31 13F NOVAVAX COM NEW Put 60,200 -42.00 619 -67.28 n/a n/a n/a
2022-11-14 2022-09-30 13F NOVAVAX COM NEW Put 103,800 227.44 1,889 15.89 n/a n/a n/a
2022-08-08 2022-06-30 13F NOVAVAX COM NEW Put 31,700 1.60 1,630 -29.07 n/a n/a n/a
2022-05-16 2022-03-31 13F NOVAVAX COM NEW Put 31,200 183.64 2,298 46.00 n/a n/a n/a
2022-02-14 2021-12-31 13F NOVAVAX COM NEW Put 11,000 -72.91 1,574 -81.30 n/a n/a n/a
2021-11-15 2021-09-30 13F NOVAVAX COM NEW Put 40,600 -27.11 8,417 -28.83 n/a n/a n/a
2021-08-16 2021-06-30 13F NOVAVAX COM NEW Put 55,700 27,750.00 11,826 32,750.00 n/a n/a n/a
2021-05-17 2021-03-31 13F NOVAVAX COM NEW Put 200 -85.71 36 -76.92 n/a n/a n/a
2021-02-16 2020-12-31 13F NOVAVAX COM NEW Put 1,400 -46.15 156 -44.68 n/a n/a n/a
2020-11-16 2020-09-30 13F NOVAVAX COM NEW Put 2,600 766.67 282 1,028.00 n/a n/a n/a
2020-08-14 2020-06-30 13F NOVAVAX COM NEW Put 300 25 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.