Novavax, Inc.
MX ˙ BMV ˙ US6700024010
SecurityMX:NVAX / Novavax, Inc.
InstitutionJane Street Group, Llc
Latest Disclosed Ownership64,157 shares
Latest Disclosed Value $ 522,238
Jane Street Group, Llc ownership in NVAX / Novavax, Inc.

On May 12, 2026 - Jane Street Group, Llc filed a 13F-HR form disclosing ownership of 64,157 shares of Novavax, Inc. (MX:NVAX) valued at $522,238 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 517,643 shares of Novavax, Inc.. This represents a change in shares of -87.61% during the quarter.

Jane Street Group, 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 930,900 of underlying shares valued at $7,577,526 USD and put options representing 145,300 of underlying shares valued at $1,182,742 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)
2026-05-12 2026-03-31 13F NOVAVAX COM NEW 670002401 64,157 -453,486 -87.61 522 -84.99 0.0001
2026-02-12 2025-12-31 13F NOVAVAX COM NEW 670002401 517,643 -122,031 -19.08 3,479 -37.28 0.0005
2025-11-14 2025-09-30 13F NOVAVAX COM NEW 670002401 639,674 -358,200 -35.90 5,546 -11.79 0.0008
2025-08-14 2025-06-30 13F NOVAVAX COM NEW 670002401 997,874 217,389 27.85 6,287 25.67 0.0012
2025-05-19 2025-03-31 13F/A-1 NOVAVAX COM NEW 670002401 780,485 -171,432 -18.01 5,003 -34.64 0.0013
2025-05-14 2025-03-31 13F NOVAVAX COM NEW 670002401 780,485 -171,432 5,003 0.0013
2025-02-14 2024-12-31 13F NOVAVAX COM NEW 670002401 951,917 -886,890 -48.23 7,653 -67.05 0.0017
2024-11-15 2024-09-30 13F NOVAVAX COM NEW 670002401 1,838,807 -44,730 -2.37 23,224 -2.60 0.0051
2024-08-15 2024-06-30 13F NOVAVAX COM NEW 670002401 1,883,537 1,791,857 1,954.47 23,846 5,344.06 0.0054
2024-05-16 2024-03-31 13F NOVAVAX COM NEW 670002401 91,680 -1,004,825 -91.64 438 -91.68 0.0001
2024-02-15 2023-12-31 13F NOVAVAX COM NEW 670002401 1,096,505 709,291 183.18 5,263 87.76 0.0014
2023-11-15 2023-09-30 13F NOVAVAX COM NEW 670002401 387,214 -199,101 -33.96 2,803 -35.65 0.0009
2023-08-14 2023-06-30 13F NOVAVAX COM NEW 670002401 586,315 -2,208 -0.38 4,356 6.82 0.0015
2023-05-16 2023-03-31 13F NOVAVAX COM NEW 670002401 588,523 221,801 60.48 4,078 8.20 0.0017
2023-02-15 2022-12-31 13F NOVAVAX COM NEW 670002401 366,722 299,358 444.39 3,770 207.42 0.0017
2022-11-15 2022-09-30 13F NOVAVAX COM NEW 670002401 67,364 -238,427 -77.97 1,226 -92.20 0.0005
2022-08-16 2022-06-30 13F NOVAVAX COM NEW 670002401 305,791 -257,407 -45.70 15,727 -62.08 0.0067
2022-05-17 2022-03-31 13F NOVAVAX COM NEW 670002401 563,198 -86,592 -13.33 41,479 -55.38 0.0134
2022-02-15 2021-12-31 13F NOVAVAX COM NEW 670002401 649,790 381,887 142.55 92,966 67.39 0.0307
2021-11-16 2021-09-30 13F NOVAVAX COM NEW 670002401 267,903 -154,060 -36.51 55,539 -38.01 0.0196
2021-08-16 2021-06-30 13F NOVAVAX COM NEW 670002401 421,963 282,906 203.45 89,587 255.32 0.0350
2021-05-18 2021-03-31 13F NOVAVAX COM NEW 670002401 139,057 57,210 69.90 25,213 176.25 0.0125
2021-02-17 2020-12-31 13F NOVAVAX COM NEW 670002401 81,847 -26,124 -24.20 9,127 -21.98 0.0046
2020-11-17 2020-09-30 13F NOVAVAX COM NEW 670002401 107,971 -106,377 -49.63 11,699 -34.52 0.0070
2020-08-17 2020-06-30 13F NOVAVAX COM NEW 670002401 214,348 185,961 655.09 17,866 4,540.52 0.0134
2020-05-15 2020-03-31 13F NOVAVAX COM NEW 670002401 28,387 28,387 385 0.0004
2019-08-14 2019-06-30 13F NOVAVAX COM 670002104 0 -320,289 -100.00 0 -100.00
2019-05-16 2019-03-31 13F NOVAVAX COM 670002104 320,289 11,267 3.65 176 -69.07 0.0003
2019-02-14 2018-12-31 13F NOVAVAX COM 670002104 309,022 309,022 -3.52 569 223.30 0.0012
2018-08-15 2018-06-30 13F NOVAVAX COM 670002104 0 -157,407 -100.00 0 -100.00
2018-05-15 2018-03-31 13F NOVAVAX COM 670002104 157,407 139,617 784.81 331 1,404.55 0.0009
2018-02-15 2017-12-31 13F NOVAVAX COM 670002104 17,790 -750 -4.05 22 4.76 0.0001
2017-11-14 2017-09-30 13F NOVAVAX COM 670002104 18,540 904 5.13 21 5.00 0.0001
2017-08-14 2017-06-30 13F NOVAVAX COM 670002104 17,636 -866 -4.68 20 -16.67 0.0001
2017-05-15 2017-03-31 13F NOVAVAX COM 670002104 18,502 18,502 24 0.0001
2016-11-14 2016-09-30 13F NOVAVAX COM 670002104 0 -51,222 -100.00 0 -100.00
2016-08-15 2016-06-30 13F NOVAVAX COM 670002104 51,222 35,815 232.46 372 365.00 0.0018
2016-05-17 2016-03-31 13F NOVAVAX COM 670002104 15,407 15,407 -69.92 80 -78.49 0.0004
2016-02-16 2015-12-31 13F NOVAVAX COM 670002104 0 -121,733 -100.00 0 -100.00
2015-11-16 2015-09-30 13F NOVAVAX COM 670002104 121,733 55,098 82.69 860 15.90 0.0054
2015-08-14 2015-06-30 13F NOVAVAX COM 670002104 66,635 44,866 206.10 742 475.19 0.0048
2015-05-11 2015-03-31 13F NOVAVAX COM 670002104 21,769 0 0.00 129 0.00 0.0010
2015-02-17 2014-12-31 13F NOVAVAX COM 670002104 21,769 21,769 0.00 129 0.00 0.0010
2014-11-14 2014-09-30 13F NOVAVAX COM 670002104 0 -11,068 -100.00 0 -100.00
2014-08-14 2014-06-30 13F NOVAVAX COM 670002104 11,068 11,068 51 0.0006
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
(%)
2026-05-12 2026-03-31 13F NOVAVAX COM NEW Call 930,900 35.54 7,578 64.18 n/a n/a n/a
2026-02-12 2025-12-31 13F NOVAVAX COM NEW Call 686,800 11.80 4,615 -13.33 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Call 614,300 32.19 5,326 81.93 n/a n/a n/a
2025-08-14 2025-06-30 13F NOVAVAX COM NEW Call 464,700 -16.12 2,928 -17.57 n/a n/a n/a
2025-05-19 2025-03-31 13F/A NOVAVAX COM NEW Call 554,000 -19.19 3,551 -35.58 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Call 554,000 3,551 n/a n/a n/a
2025-02-14 2024-12-31 13F NOVAVAX COM NEW Call 685,600 -35.79 5,512 -59.13 n/a n/a n/a
2024-11-15 2024-09-30 13F NOVAVAX COM NEW Call 1,067,800 13,486 n/a n/a n/a
2022-08-16 2022-06-30 13F NOVAVAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-17 2022-03-31 13F NOVAVAX COM Call 830,000 -28.45 61,130 -63.17 n/a n/a n/a
2022-02-15 2021-12-31 13F NOVAVAX COM Call 1,160,000 -10.22 165,961 -38.04 n/a n/a n/a
2021-11-16 2021-09-30 13F NOVAVAX COM Call 1,292,000 69.09 267,845 65.11 n/a n/a n/a
2021-08-16 2021-06-30 13F NOVAVAX COM Call 764,100 21.30 162,226 42.05 n/a n/a n/a
2021-05-18 2021-03-31 13F NOVAVAX COM Call 629,900 22.45 114,207 99.10 n/a n/a n/a
2021-02-17 2020-12-31 13F NOVAVAX COM Call 514,400 -44.41 57,361 -42.79 n/a n/a n/a
2020-11-17 2020-09-30 13F NOVAVAX COM Call 925,400 58.05 100,267 105.46 n/a n/a n/a
2020-08-17 2020-06-30 13F NOVAVAX COM Call 585,500 372.94 48,801 2,803.09 n/a n/a n/a
2020-05-15 2020-03-31 13F NOVAVAX COM Call 123,800 1,681 n/a n/a n/a
2018-05-15 2018-03-31 13F NOVAVAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-15 2017-12-31 13F NOVAVAX COM Call 12,100 15 n/a n/a n/a
2017-05-15 2017-03-31 13F NOVAVAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-15 2016-12-31 13F NOVAVAX COM Call 16,500 -95.36 21 -97.16 n/a n/a n/a
2016-11-14 2016-09-30 13F NOVAVAX COM Call 355,700 1,762.30 740 432.37 n/a n/a n/a
2016-08-15 2016-06-30 13F NOVAVAX COM Call 19,100 -94.63 139 -81.22 n/a n/a n/a
2016-05-17 2016-03-31 13F NOVAVAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-16 2015-12-31 13F NOVAVAX COM Call 22,000 185 n/a n/a n/a
2015-11-16 2015-09-30 13F NOVAVAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F NOVAVAX COM Call 10,100 -67.94 113 -56.70 n/a n/a n/a
2015-05-12 2015-03-31 13F/A NOVAVAX COM Call 31,500 96.88 261 174.74 n/a n/a n/a
2015-05-11 2015-03-31 13F NOVAVAX COM Call 16,000 95 n/a n/a n/a
2015-02-17 2014-12-31 13F NOVAVAX COM Call 16,000 95 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
(%)
2026-05-12 2026-03-31 13F NOVAVAX COM NEW Put 145,300 -77.98 1,183 -73.34 n/a n/a n/a
2026-02-12 2025-12-31 13F NOVAVAX COM NEW Put 659,900 -4.60 4,435 -26.06 n/a n/a n/a
2025-11-14 2025-09-30 13F NOVAVAX COM NEW Put 691,700 -15.27 5,997 16.61 n/a n/a n/a
2025-08-14 2025-06-30 13F NOVAVAX COM NEW Put 816,400 -2.31 5,143 -3.98 n/a n/a n/a
2025-05-19 2025-03-31 13F/A NOVAVAX COM NEW Put 835,700 -64.56 5,357 -71.75 n/a n/a n/a
2025-05-14 2025-03-31 13F NOVAVAX COM NEW Put 835,700 5,357 n/a n/a n/a
2025-02-14 2024-12-31 13F NOVAVAX COM NEW Put 2,358,100 -12.85 18,959 -44.52 n/a n/a n/a
2024-11-15 2024-09-30 13F NOVAVAX COM NEW Put 2,705,700 11.42 34,173 11.16 n/a n/a n/a
2024-08-15 2024-06-30 13F NOVAVAX COM Put 2,428,300 143.73 30,742 545.57 n/a n/a n/a
2024-05-16 2024-03-31 13F NOVAVAX COM Put 996,300 19.96 4,762 19.47 n/a n/a n/a
2024-02-15 2023-12-31 13F NOVAVAX COM Put 830,500 2.98 3,986 -31.73 n/a n/a n/a
2023-11-15 2023-09-30 13F NOVAVAX COM Put 806,500 85.96 5,839 81.22 n/a n/a n/a
2023-08-14 2023-06-30 13F NOVAVAX COM Put 433,700 -4.49 3,222 2.42 n/a n/a n/a
2023-05-16 2023-03-31 13F NOVAVAX COM Put 454,100 -32.18 3,147 -54.29 n/a n/a n/a
2023-02-15 2022-12-31 13F NOVAVAX COM Put 669,600 89.21 6,883 6.86 n/a n/a n/a
2022-11-15 2022-09-30 13F NOVAVAX COM Put 353,900 -50.20 6,441 -82.38 n/a n/a n/a
2022-08-16 2022-06-30 13F NOVAVAX COM Put 710,700 -20.63 36,551 -44.57 n/a n/a n/a
2022-05-17 2022-03-31 13F NOVAVAX COM Put 895,400 -22.11 65,946 -59.90 n/a n/a n/a
2022-02-15 2021-12-31 13F NOVAVAX COM Put 1,149,600 57.89 164,473 8.96 n/a n/a n/a
2021-11-16 2021-09-30 13F NOVAVAX COM Put 728,100 8.95 150,942 6.38 n/a n/a n/a
2021-08-16 2021-06-30 13F NOVAVAX COM Put 668,300 85.69 141,887 117.44 n/a n/a n/a
2021-05-18 2021-03-31 13F NOVAVAX COM Put 359,900 -16.05 65,253 36.50 n/a n/a n/a
2021-02-17 2020-12-31 13F NOVAVAX COM Put 428,700 3.20 47,804 6.21 n/a n/a n/a
2020-11-17 2020-09-30 13F NOVAVAX COM Put 415,400 -27.86 45,009 -6.22 n/a n/a n/a
2020-08-17 2020-06-30 13F NOVAVAX COM Put 575,800 787.21 47,993 5,347.56 n/a n/a n/a
2020-05-15 2020-03-31 13F NOVAVAX COM Put 64,900 -37.17 881 309.77 n/a n/a n/a
2016-11-14 2016-09-30 13F NOVAVAX COM Put 103,300 59.17 215 -75.60 n/a n/a n/a
2016-08-15 2016-06-30 13F NOVAVAX COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-17 2016-03-31 13F NOVAVAX COM Put 11,600 60 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.