Novavax, Inc.
MX ˙ BMV ˙ US6700024010
SecurityMX:NVAX / Novavax, Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership37,920 shares
Latest Disclosed Value $ 308,669
Walleye Capital LLC ownership in NVAX / Novavax, Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 37,920 shares of Novavax, Inc. (MX:NVAX) valued at $308,669 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 89,559 shares of Novavax, Inc.. This represents a change in shares of -57.66% during the quarter.

Walleye Capital 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 300 of underlying shares valued at $2,442 USD and put options representing 43,200 of underlying shares valued at $351,648 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)
2026-05-13 2026-03-31 13F/A-1 NOVAVAX COM NEW 670002401 37,920 -51,639 -57.66 309 -48.75 0.0013
2026-05-08 2026-03-31 13F NOVAVAX COM NEW 670002401 37,920 -51,639 309 0.0013
2026-02-13 2025-12-31 13F NOVAVAX COM NEW 670002401 89,559 76,525 587.12 602 431.86 0.0018
2025-11-14 2025-09-30 13F NOVAVAX COM NEW 670002401 13,034 -31,159 -70.51 113 -59.35 0.0004
2025-08-13 2025-06-30 13F NOVAVAX COM NEW 670002401 44,193 25,790 140.14 278 137.61 0.0011
2025-05-14 2025-03-31 13F NOVAVAX COM NEW 670002401 18,403 -12,307 -40.07 118 -52.44 0.0005
2025-02-13 2024-12-31 13F NOVAVAX COM NEW 670002401 30,710 -29,259 -48.79 247 -67.50 0.0006
2024-11-14 2024-09-30 13F NOVAVAX COM NEW 670002401 59,969 -333,948 -84.78 757 -84.82 0.0016
2024-08-14 2024-06-30 13F NOVAVAX COM NEW 670002401 393,917 392,035 20,830.77 4,987 62,225.00 0.0089
2024-05-15 2024-03-31 13F NOVAVAX COM NEW 670002401 1,882 1,882 9 0.0000
2023-11-21 2023-09-30 13F/A-1 NOVAVAX COM NEW 670002401 0 -56,283 -100.00 0 -100.00
2023-11-14 2023-09-30 13F NOVAVAX COM NEW 670002401 0 -56,283 0
2023-08-14 2023-06-30 13F NOVAVAX COM NEW 670002401 56,283 56,283 418 0.0015
2023-05-15 2023-03-31 13F NOVAVAX COM NEW 670002401 0 -109,536 -100.00 0 -100.00
2023-02-14 2022-12-31 13F NOVAVAX COM NEW 670002401 109,536 34,335 45.66 1,126 -17.75 0.0205
2022-11-14 2022-09-30 13F NOVAVAX COM NEW 670002401 75,201 75,201 1,369 0.0261
2022-08-19 2022-06-30 13F/A-1 NOVAVAX COM NEW 670002401 0 -10,273 -100.00 0 -100.00
2022-08-08 2022-06-30 13F NOVAVAX COM NEW 670002401 0 -10,273 0
2022-05-27 2022-03-31 13F/A-01 NOVAVAX COM NEW 670002401 10,273 10,273 757 0.0202
2022-05-16 2022-03-31 13F NOVAVAX COM NEW 670002401 10,273 10,273 757 0.0154
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
(%)
2026-05-13 2026-03-31 13F/A NOVAVAX COM NEW Call 300 -98.66 2 -98.67 n/a n/a n/a
2026-05-08 2026-03-31 13F NOVAVAX COM NEW Call 300 2 n/a n/a n/a
2026-02-13 2025-12-31 13F NOVAVAX COM NEW Call 22,400 -84.78 151 -88.24 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Call 147,200 1.24 1,276 39.30 n/a n/a n/a
2025-08-13 2025-06-30 13F NOVAVAX COM NEW Call 145,400 196.73 916 191.72 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Call 49,000 57.05 314 25.60 n/a n/a n/a
2025-02-13 2024-12-31 13F NOVAVAX COM NEW Call 31,200 50.00 251 -4.58 n/a n/a n/a
2024-11-14 2024-09-30 13F NOVAVAX COM NEW Call 20,800 -70.07 263 -70.19 n/a n/a n/a
2024-08-14 2024-06-30 13F NOVAVAX COM NEW Call 69,500 1,554.76 880 4,295.00 n/a n/a n/a
2024-05-15 2024-03-31 13F NOVAVAX COM NEW Call 4,200 20 n/a n/a n/a
2023-11-21 2023-09-30 13F/A NOVAVAX COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F NOVAVAX COM NEW Call 0 0 n/a n/a n/a
2023-08-14 2023-06-30 13F NOVAVAX COM NEW Call 9,500 -59.75 71 -57.06 n/a n/a n/a
2023-05-15 2023-03-31 13F NOVAVAX COM NEW Call 23,600 10.28 164 -25.57 n/a n/a n/a
2023-02-14 2022-12-31 13F NOVAVAX COM NEW Call 21,400 -18.94 220 -54.37 n/a n/a n/a
2022-11-14 2022-09-30 13F NOVAVAX COM NEW Call 26,400 480 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
(%)
2026-05-13 2026-03-31 13F/A NOVAVAX COM NEW Put 43,200 -56.76 352 -47.69 n/a n/a n/a
2026-05-08 2026-03-31 13F NOVAVAX COM NEW Put 43,200 352 n/a n/a n/a
2026-02-13 2025-12-31 13F NOVAVAX COM NEW Put 99,900 -34.49 671 -49.24 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Put 152,500 26.77 1,322 74.64 n/a n/a n/a
2025-08-13 2025-06-30 13F NOVAVAX COM NEW Put 120,300 536.51 758 525.62 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Put 18,900 -52.15 121 -61.83 n/a n/a n/a
2025-02-13 2024-12-31 13F NOVAVAX COM NEW Put 39,500 -13.94 318 -45.25 n/a n/a n/a
2024-11-14 2024-09-30 13F NOVAVAX COM NEW Put 45,900 -59.45 580 -59.60 n/a n/a n/a
2024-08-14 2024-06-30 13F NOVAVAX COM NEW Put 113,200 812.90 1,433 2,328.81 n/a n/a n/a
2024-05-15 2024-03-31 13F NOVAVAX COM NEW Put 12,400 59 n/a n/a n/a
2023-11-21 2023-09-30 13F/A NOVAVAX COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F NOVAVAX COM NEW Put 0 0 n/a n/a n/a
2023-08-14 2023-06-30 13F NOVAVAX COM NEW Put 12,100 -18.24 90 -12.75 n/a n/a n/a
2023-05-15 2023-03-31 13F NOVAVAX COM NEW Put 14,800 -29.19 103 -52.34 n/a n/a n/a
2023-02-14 2022-12-31 13F NOVAVAX COM NEW Put 20,900 -45.71 215 -69.47 n/a n/a n/a
2022-11-14 2022-09-30 13F NOVAVAX COM NEW Put 38,500 701 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.