Novavax, Inc.
MX ˙ BMV ˙ US6700024010
SecurityMX:NVAX / Novavax, Inc.
InstitutionSG Americas Securities, LLC
Latest Disclosed Ownership141,085 shares
Latest Disclosed Value $ 1,148
SG Americas Securities, LLC ownership in NVAX / Novavax, Inc.

On April 16, 2026 - SG Americas Securities, LLC filed a 13F-HR form disclosing ownership of 141,085 shares of Novavax, Inc. (MX:NVAX) valued at $1,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 976,388 shares of Novavax, Inc.. This represents a change in shares of -85.55% during the quarter.

SG Americas Securities, LLC has a history of taking positions in derivatives of the underlying security (NVAX) 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2026-04-16 2026-03-31 13F NOVAVAX INC COM COM 670002401 141,085 -835,303 -85.55 1 -83.33 0.0012
2026-01-09 2025-12-31 13F NOVAVAX INC COM COM 670002401 976,388 57,705 6.28 7 -14.29 0.0084
2025-10-23 2025-09-30 13F NOVAVAX INC COM COM 670002401 918,683 15,997 1.77 8 40.00 0.0269
2025-08-08 2025-06-30 13F NOVAVAX INC COM COM 670002401 902,686 -33,127 -3.54 6 0.00 0.0236
2025-04-15 2025-03-31 13F NOVAVAX INC COM COM 670002401 935,813 -223,154 -19.25 6 -44.44 0.0197
2025-01-17 2024-12-31 13F NOVAVAX INC COM COM 670002401 1,158,967 4,691 0.41 9 -35.71 0.0382
2024-10-03 2024-09-30 13F NOVAVAX INC COM COM 670002401 1,154,276 1,043,363 940.70 15 1,300.00 0.0528
2024-07-12 2024-06-30 13F NOVAVAX INC COM COM 670002401 110,913 -247,283 -69.04 1 0.00 0.0082
2024-05-06 2024-03-31 13F NOVAVAX INC COM COM 670002401 358,196 186,578 108.72 2 0.0082
2024-01-12 2023-12-31 13F NOVAVAX INC COM COM 670002401 171,618 171,618 1 0.0077
2023-10-13 2023-09-30 13F NOVAVAX INC COM COM 670002401 0 -10,994 -100.00 0 0.0000
2023-07-10 2023-06-30 13F NOVAVAX INC COM COM 670002401 10,994 -299,201 -96.46 0 -100.00 0.0006
2023-04-28 2023-03-31 13F NOVAVAX INC COM COM 670002401 310,195 185,886 149.54 2 100.00 0.0250
2023-02-02 2022-12-31 13F NOVAVAX INC COM COM 670002401 124,309 92,364 289.13 1 -99.83 0.0156
2022-10-31 2022-09-30 13F NOVAVAX INC COM COM 670002401 31,945 16,080 101.36 581 -28.80 0.0072
2022-07-29 2022-06-30 13F NOVAVAX INC COM COM 670002401 15,865 -32,972 -67.51 816 -77.31 0.0087
2022-04-29 2022-03-31 13F NOVAVAX INC COM COM 670002401 48,837 45,262 1,266.07 3,597 603.91 0.0264
2022-02-07 2021-12-31 13F NOVAVAX INC COM COM 670002401 3,575 -26,638 -88.17 511 -91.84 0.0028
2021-11-01 2021-09-30 13F NOVAVAX INC COM COM 670002401 30,213 16,684 123.32 6,263 118.07 0.0294
2021-08-12 2021-06-30 13F NOVAVAX INC COM COM 670002401 13,529 8,443 166.00 2,872 211.50 0.0134
2021-05-13 2021-03-31 13F NOVAVAX INC COM COM 670002401 5,086 -18,073 -78.04 922 -64.29 0.0048
2021-02-04 2020-12-31 13F NOVAVAX INC COM COM 670002401 23,159 11,932 106.28 2,582 112.34 0.0138
2020-11-09 2020-09-30 13F NOVAVAX INC COM COM 670002401 11,227 -8,184 -42.16 1,216 -24.85 0.0077
2020-07-20 2020-06-30 13F NOVAVAX INC COM COM 670002401 19,411 7,980 69.81 1,618 943.87 0.0135
2020-04-30 2020-03-31 13F NOVAVAX INC COM COM 670002401 11,431 11,431 -41.11 155 -90.42 0.0015
2020-01-28 2019-12-31 13F NOVAVAX INC COM COM 670002401 0 -46,806 -100.00 0 -100.00
2019-11-04 2019-09-30 13F NOVAVAX INC COM COM 670002401 46,806 -2,211 -4.51 235 -18.12 0.0019
2019-07-29 2019-06-30 13F NOVAVAX INC COM COM 670002401 49,017 -386,090 -88.73 287 19.58 0.0020
2019-04-29 2019-03-31 13F NOVAVAX INC COM COM 670002104 435,107 423,948 3,799.16 240 1,042.86 0.0022
2019-01-31 2018-12-31 13F NOVAVAX INC COM COM 670002104 11,159 -23,278 -67.60 21 -67.69 0.0002
2018-11-06 2018-09-30 13F NOVAVAX INC COM COM 670002104 34,437 -67,566 -66.24 65 -52.55 0.0005
2018-08-07 2018-06-30 13F NOVAVAX INC COM COM 670002104 102,003 81,117 388.38 137 211.36 0.0012
2018-05-03 2018-03-31 13F NOVAVAX INC COM COM 670002104 20,886 20,886 -79.52 44 -67.88 0.0004
2018-01-24 2017-12-31 13F NOVAVAX INC COM COM 670002104 0 -75,068 -100.00 0 -100.00
2017-11-07 2017-09-30 13F NOVAVAX INC COM COM 670002104 75,068 21,883 41.15 86 40.98 0.0008
2017-08-03 2017-06-30 13F NOVAVAX INC COM COM 670002104 53,185 -46,866 -46.84 61 -52.34 0.0005
2017-05-10 2017-03-31 13F NOVAVAX INC COM COM 670002104 100,051 -61,351 -38.01 128 -36.95 0.0011
2017-02-08 2016-12-31 13F NOVAVAX INC COM COM 670002104 161,402 128,775 394.69 203 198.53 0.0017
2017-02-08 2016-09-30 13F/A-1 NOVAVAX INC COM COM 670002104 32,627 19,137 141.86 68 -30.61 0.0007
2016-11-08 2016-09-30 13F NOVAVAX INC COM COM 670002104 32,627 68
2016-08-03 2016-06-30 13F NOVAVAX INC COM COM 670002104 13,490 -50,006 -78.75 98 -70.12 0.0007
2016-05-12 2016-03-31 13F NOVAVAX INC COM COM 670002104 63,496 40,051 170.83 328 66.50 0.0024
2016-02-12 2015-12-31 13F NOVAVAX INC COM COM 670002104 23,445 -2,263 -8.80 197 8.24 0.0014
2015-11-09 2015-09-30 13F NOVAVAX INC COM COM 670002104 25,708 -9,272 -26.51 182 -53.33 0.0011
2015-08-06 2015-06-30 13F NOVAVAX INC COM COM 670002104 34,980 -101,783 -74.42 390 -65.52 0.0026
2015-05-13 2015-03-31 13F NOVAVAX INC COM COM 670002104 136,763 84,494 161.65 1,131 264.84 0.0067
2015-02-12 2014-12-31 13F NOVAVAX INC COM COM 670002104 52,269 26,010 99.05 310 181.82 0.0015
2014-11-13 2014-09-30 13F NOVAVAX INC COM COM 670002104 26,259 -39,236 -59.91 110 -63.70 0.0006
2014-08-13 2014-06-30 13F NOVAVAX INC COM COM 670002104 65,495 -11,994 -15.48 303 -13.68 0.0018
2014-05-14 2014-03-31 13F NOVAVAX INC COM COM 670002104 77,489 58,977 318.59 351 269.47 0.0015
2014-02-12 2013-12-31 13F NOVAVAX INC COM COM 670002104 18,512 -32,459 -63.68 95 -40.99 0.0004
2013-11-12 2013-09-30 13F NOVAVAX INC COM COM 670002104 50,971 36,924 262.86 161 455.17 0.0007
2013-08-13 2013-06-30 13F NOVAVAX INC COM COM 670002104 14,047 14,047 29 0.0001
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
(%)
2024-07-12 2024-06-30 13F NOVAVAX OPT Put 0 -100.00 0 n/a n/a n/a
2024-05-06 2024-03-31 13F NOVAVAX OPT Put 143,100 0 n/a n/a n/a
2023-04-28 2023-03-31 13F NOVAVAX OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-02 2022-12-31 13F NOVAVAX OPT Put 16,500 0.00 3 -99.93 n/a n/a n/a
2022-10-31 2022-09-30 13F NOVAVAX OPT Put 16,500 0.00 2,797 21.71 n/a n/a n/a
2022-07-29 2022-06-30 13F NOVAVAX OPT Put 16,500 0.00 2,298 17.13 n/a n/a n/a
2022-04-29 2022-03-31 13F NOVAVAX OPT Put 16,500 -85.84 1,962 -58.85 n/a n/a n/a
2022-02-07 2021-12-31 13F NOVAVAX OPT Put 116,500 870.83 4,768 712.27 n/a n/a n/a
2021-11-01 2021-09-30 13F NOVAVAX OPT Put 12,000 0.00 587 -12.65 n/a n/a n/a
2021-08-12 2021-06-30 13F NOVAVAX OPT Put 12,000 672 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.