Novavax, Inc.
CH ˙ SWX ˙ US6700024010
SecurityCH:NVAX / Novavax, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership189,600 shares
Latest Disclosed Value $ 1,543,328
Rhumbline Advisers reports 0.08% decrease in ownership of NVAX / Novavax, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 189,600 shares of Novavax, Inc. (CH:NVAX) valued at $1,543,328 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 189,755 shares of Novavax, Inc.. This represents a change in shares of -0.08% during the quarter.

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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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 INC COM COM 670002401 189,600 -155 -0.08 1,543 21.02 0.0013
2026-02-13 2025-12-31 13F NOVAVAX INC COM COM 670002401 189,755 -32,320 -14.55 1,275 -33.77 0.0010
2025-11-06 2025-09-30 13F NOVAVAX INC COM COM 670002401 222,075 -9,842 -4.24 1,925 31.76 0.0015
2025-08-12 2025-06-30 13F NOVAVAX INC COM COM 670002401 231,917 16,504 7.66 1,461 5.87 0.0013
2025-05-29 2025-03-31 13F/A-1 NOVAVAX INC COM COM 670002401 215,413 6,949 3.33 1,381 -17.66 0.0013
2025-04-08 2025-03-31 13F NOVAVAX INC COM COM 670002401 215,413 6,949 1,381 0.0013
2025-05-29 2024-12-31 13F/A-1 NOVAVAX INC COM COM 670002401 208,464 13,024 6.66 1,676 -32.09 0.0015
2025-01-30 2024-12-31 13F NOVAVAX INC COM COM 670002401 208,464 13,024 1,676 0.0015
2024-11-12 2024-09-30 13F NOVAVAX INC COM COM 670002401 195,440 -4,469 -2.24 2,468 -2.45 0.0022
2024-08-01 2024-06-30 13F NOVAVAX INC COM COM 670002401 199,909 56,324 39.23 2,531 268.80 0.0024
2024-05-09 2024-03-31 13F NOVAVAX INC COM COM 670002401 143,585 12,905 9.88 686 9.41 0.0007
2024-02-08 2023-12-31 13F NOVAVAX INC COM COM 670002401 130,680 6,538 5.27 627 -30.18 0.0007
2023-11-09 2023-09-30 13F NOVAVAX INC COM COM 670002401 124,142 834 0.68 899 -1.97 0.0010
2023-08-08 2023-06-30 13F NOVAVAX INC COM COM 670002401 123,308 25,235 25.73 916 0.0010
2023-05-11 2023-03-31 13F NOVAVAX INC COM COM 670002401 98,073 16,055 19.57 1 -100.00 0.0008
2023-02-14 2022-12-31 13F NOVAVAX INC COM COM 670002401 82,018 -11 -0.01 843 -43.54 0.0011
2022-11-10 2022-09-30 13F NOVAVAX INC COM COM 670002401 82,029 2,099 2.63 1,493 -63.68 0.0022
2022-08-11 2022-06-30 13F NOVAVAX INC COM COM 670002401 79,930 7,678 10.63 4,111 -22.74 0.0060
2022-05-12 2022-03-31 13F NOVAVAX INC COM COM 670002401 72,252 -6,270 -7.99 5,321 -52.63 0.0068
2022-02-10 2021-12-31 13F NOVAVAX INC COM COM 670002401 78,522 4,251 5.72 11,234 -27.04 0.0138
2021-11-12 2021-09-30 13F NOVAVAX INC COM COM 670002401 74,271 -973 -1.29 15,397 -3.62 0.0208
2021-08-05 2021-06-30 13F NOVAVAX INC COM COM 670002401 75,244 -21,870 -22.52 15,975 -9.27 0.0210
2021-05-06 2021-03-31 13F NOVAVAX INC COM COM 670002401 97,114 -4,384 -4.32 17,608 55.58 0.0239
2021-02-10 2020-12-31 13F NOVAVAX INC COM COM 670002401 101,498 8,428 9.06 11,318 12.24 0.0156
2020-11-12 2020-09-30 13F NOVAVAX INC COM COM 670002401 93,070 -14,639 -13.59 10,084 12.32 0.0158
2020-08-13 2020-06-30 13F NOVAVAX INC COM COM 670002401 107,709 58,613 119.38 8,978 1,246.03 0.0150
2020-05-06 2020-03-31 13F NOVAVAX INC COM COM 670002401 49,096 15,998 48.34 667 405.30 0.0014
2020-02-05 2019-12-31 13F NOVAVAX INC COM COM 670002401 33,098 -330 -0.99 132 -21.43 0.0002
2019-10-23 2019-09-30 13F NOVAVAX INC COM COM 670002401 33,428 3,118 10.29 168 -5.62 0.0003
2019-08-14 2019-06-30 13F NOVAVAX INC COM COM 670002401 30,310 -493,754 -94.22 178 -38.41 0.0003
2019-05-01 2019-03-31 13F NOVAVAX INC COM COM 670002104 524,064 -10,151 -1.90 289 -70.60 0.0006
2019-01-31 2018-12-31 13F NOVAVAX INC COM COM 670002104 534,215 162,758 43.82 983 40.83 0.0021
2018-11-07 2018-09-30 13F NOVAVAX INC COM COM 670002104 371,457 -4,376 -1.16 698 38.49 0.0013
2018-08-06 2018-06-30 13F NOVAVAX INC COM COM 670002104 375,833 69,675 22.76 504 -21.62 0.0010
2018-05-02 2018-03-31 13F NOVAVAX INC COM COM 670002104 306,158 9,365 3.16 643 74.73 0.0013
2018-02-09 2017-12-31 13F NOVAVAX INC COM COM 670002104 296,793 -53,300 -15.22 368 -7.77 0.0007
2017-11-06 2017-09-30 13F NOVAVAX INC COM COM 670002104 350,093 3,125 0.90 399 0.00 0.0009
2017-08-02 2017-06-30 13F NOVAVAX INC COM COM 670002104 346,968 23,410 7.24 399 -3.62 0.0009
2017-05-02 2017-03-31 13F NOVAVAX INC COM COM 670002104 323,558 11,245 3.60 414 5.08 0.0010
2017-01-27 2016-12-31 13F NOVAVAX INC COM COM 670002104 312,313 20,621 7.07 394 -35.09 0.0010
2016-11-08 2016-09-30 13F NOVAVAX INC COM COM 670002104 291,692 1,975 0.68 607 -71.18 0.0017
2016-08-11 2016-06-30 13F NOVAVAX INC COM COM 670002104 289,717 14,860 5.41 2,106 48.52 0.0062
2016-05-02 2016-03-31 13F NOVAVAX INC USD.0 COM 670002104 274,857 2,976 1.09 1,418 -37.83 0.0044
2016-02-03 2015-12-31 13F NOVAVAX INC USD.0 COM 670002104 271,881 30,395 12.59 2,281 33.63 0.0073
2015-11-04 2015-09-30 13F NOVAVAX INC USD.0 COM 670002104 241,486 8,573 3.68 1,707 -34.22 0.0058
2015-08-04 2015-06-30 13F NOVAVAX INC USD.0 COM 670002104 232,913 9,930 4.45 2,595 40.73 0.0083
2015-05-12 2015-03-31 13F NOVAVAX INC USD.0 COM 670002104 222,983 41,675 22.99 1,844 71.53 0.0053
2015-02-06 2014-12-31 13F NOVAVAX INC USD.0 COM 670002104 181,308 5,975 3.41 1,075 47.06 0.0031
2014-11-12 2014-09-30 13F NOVAVAX INC USD.0 COM 670002104 175,333 3,425 1.99 731 -7.93 0.0022
2014-08-06 2014-06-30 13F NOVAVAX INC USD.0 COM 670002104 171,908 29,259 20.51 794 22.91 0.0023
2014-05-06 2014-03-31 13F NOVAVAX INC USD.0 COM 670002104 142,649 2,390 1.70 646 -10.03 0.0019
2014-02-03 2013-12-31 13F NOVAVAX INC USD.0 COM 670002104 140,259 19,060 15.73 718 87.47 0.0021
2013-11-05 2013-09-30 13F NOVAVAX INC USD.0 COM 670002104 121,199 -1,203 -0.98 383 52.59 0.0012
2013-08-07 2013-06-30 13F NOVAVAX INC USD.0 COM 670002104 122,402 122,402 251 0.0008
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.