Siren LLC’s Invivyd IVVD Stock Holding History

Siren LLC’s Portfolio IVVD Stock Details IVVD Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$5.2M	Hold	4,000,000	–	–	0.14%	76
2025 Q4	$9.88M	Buy	+4,000,000	New	+$8.32M	0.29%	54

Other funds holding IVVD

Janus Henderson Group

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return

Saturn V Capital Management Austin, Texas $552M AUM 551.78% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

M28 Capital Management Stamford, Connecticut $53.8M AUM 28.63% 1-Year Est. Return

Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return

Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

Soleus Capital Management Greenwich, Connecticut $2.47B AUM 115.63% 1-Year Est. Return

Siren LLC's IVVD Position: Q1 2026 in Review

Siren LLC held its Invivyd (IVVD) position steady in Q1 2026 at 4,000,000 shares worth $5.2M. The position accounts for 0.14% of the portfolio, ranked #76.

Siren LLC first reported a position in IVVD in Q4 2025 and has held it in 2 quarters since. The position peaked at $9.88M in Q4 2025. 140 funds tracked by Wall St. Rank hold IVVD as of Q1 2026.

Siren LLC held 4,000,000 shares of Invivyd worth $5.2M as of Q1 2026.
Siren LLC left its Invivyd share count unchanged in Q1 2026.
Invivyd made up 0.14% of Siren LLC's portfolio in Q1 2026, its #76 holding.
Siren LLC first reported a position in Invivyd in Q4 2025 and has held it in 2 quarters since.
Siren LLC's Invivyd position peaked at $9.88M in Q4 2025.
140 funds tracked by Wall St. Rank held Invivyd as of Q1 2026.

Based on Siren LLC's 13F filing for Q1 2026, filed 14 May 2026.