Rock Springs Capital Management’s Novavax NVAX Stock Holding History

Rock Springs Capital Management’s Portfolio NVAX Stock Details NVAX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-45,000	Closed	-$390K	–	109
2025 Q3	$390K	Sell	45,000 -8,900	-17%	-$69.3K	0.02%	89
2025 Q2	$340K	Sell	53,900 -596,100	-92%	-$3.95M	0.02%	91
2025 Q1	$4.17M	Hold	650,000	–	–	0.24%	68
2024 Q4	$5.23M	Hold	650,000	–	–	0.2%	77
2024 Q3	$8.21M	Sell	650,000 -25,000	-4%	-$323K	0.27%	72
2024 Q2	$8.55M	Buy	675,000 +137,375	+26%	+$1.38M	0.26%	71
2024 Q1	$2.57M	Hold	537,625	–	–	0.07%	105
2023 Q4	$2.58M	Sell	537,625 -110,075	-17%	-$674K	0.06%	94
2023 Q3	$4.69M	Buy	647,700 +111,000	+21%	+$887K	0.13%	85
2023 Q2	$3.99M	Buy	536,700 +1,300	+0.2%	+$10.2K	0.09%	92
2023 Q1	$3.71M	Buy	535,400 +2,800	+0.5%	+$25.8K	0.09%	96
2022 Q4	$5.48M	Sell	532,600 -66,700	-11%	-$1.18M	0.13%	85
2022 Q3	$10.9M	Buy	599,300 +124,200	+26%	+$5.38M	0.28%	75
2022 Q2	$24.4M	Buy	475,100 +26,900	+6%	+$1.39M	0.71%	42
2022 Q1	$33M	Buy	448,200 +23,200	+5%	+$2.07M	0.83%	41
2021 Q4	$60.8M	Sell	425,000 -30,000	-7%	-$5.15M	1.4%	19
2021 Q3	$94.3M	Hold	455,000	–	–	1.98%	12
2021 Q2	$96.6M	Sell	455,000 -6,000	-1%	-$1.1M	1.91%	10
2021 Q1	$83.6M	Sell	461,000 -102,205	-18%	-$20.4M	1.82%	16
2020 Q4	$62.8M	Sell	563,205 -22,500	-4%	-$2.39M	1.33%	22
2020 Q3	$63.5M	Buy	585,705 +15,107	+3%	+$1.84M	1.61%	14
2020 Q2	$47.6M	Buy	+570,598	New	+$21.8M	1.3%	23
2019 Q4	–	Sell	-162,500	Closed	-$816K	–	136
2019 Q3	$816K	Hold	162,500	–	–	0.03%	135
2019 Q2	$952K	Hold	162,500	–	–	0.03%	131
2019 Q1	$1.79M	Hold	162,500	–	–	0.07%	121
2018 Q4	$5.98M	Hold	162,500	–	–	0.28%	89
2018 Q3	$6.11M	Hold	162,500	–	–	0.22%	106
2018 Q2	$4.36M	Buy	162,500 +25,000	+18%	+$845K	0.17%	123
2018 Q1	$5.78M	Buy	137,500 +37,500	+38%	+$1.51M	0.25%	111
2017 Q4	$2.48M	Buy	100,000 +59,000	+144%	+$1.44M	0.11%	128
2017 Q3	$935K	Hold	41,000	–	–	0.04%	139
2017 Q2	$943K	Hold	41,000	–	–	0.05%	139
2017 Q1	$1.05M	Hold	41,000	–	–	0.06%	130
2016 Q4	$1.03M	Sell	41,000 -1,625	-4%	-$47.4K	0.07%	125
2016 Q3	$1.77M	Hold	42,625	–	–	0.11%	122
2016 Q2	$6.2M	Hold	42,625	–	–	0.46%	70
2016 Q1	$4.4M	Buy	42,625 +4,125	+11%	+$442K	0.37%	85
2015 Q4	$6.46M	Buy	38,500 +2,750	+8%	+$423K	0.49%	70
2015 Q3	$5.05M	Hold	35,750	–	–	0.41%	82
2015 Q2	$7.96M	Sell	35,750 -750	-2%	-$132K	0.58%	62
2015 Q1	$6.04M	Buy	36,500 +4,750	+15%	+$771K	0.56%	62
2014 Q4	$3.77M	Buy	31,750 +3,000	+10%	+$314K	0.44%	69
2014 Q3	$2.4M	Buy	28,750 +250	+0.9%	+$22.6K	0.37%	70
2014 Q2	$2.63M	Buy	28,500 +12,250	+75%	+$1.08M	0.47%	68
2014 Q1	$1.47M	Buy	16,250 +5,250	+48%	+$587K	0.34%	66
2013 Q4	$1.13M	Buy	+11,000	New	+$777K	0.4%	59

Other funds holding NVAX

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

SCM

Shah Capital Management Raleigh, North Carolina $521M AUM 46.95% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Sanofi Paris, France $534M AUM 205.96% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Rock Springs Capital Management's NVAX Position: Q4 2025 in Review

Rock Springs Capital Management sold out of Novavax (NVAX) in Q4 2025, closing a stake of 45,000 shares — an estimated $390K sold.

Rock Springs Capital Management first reported a position in NVAX in Q4 2013 and held it in 46 quarters. The position peaked at $96.6M in Q2 2021. 235 funds tracked by Wall St. Rank hold NVAX as of Q4 2025.

Rock Springs Capital Management reported no remaining Novavax position as of Q4 2025 after selling out during the quarter.
Rock Springs Capital Management sold 45,000 Novavax shares in Q4 2025, an estimated $390K.
Rock Springs Capital Management first reported a position in Novavax in Q4 2013 and held it in 46 quarters.
Rock Springs Capital Management's Novavax position peaked at $96.6M in Q2 2021.
235 funds tracked by Wall St. Rank held Novavax as of Q4 2025.

Based on Rock Springs Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.