Jane Street’s Inhibrx INBX Stock Holding History

Jane Street’s Portfolio INBX Stock Details INBX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.76M	Sell	26,200 -10,800	-29%	-$801K	﹤0.01%	5335
2025 Q4	$2.92M	Buy	+37,000	New	+$2.52M	﹤0.01%	4091

Other funds holding INBX

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

Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

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

HighTower Advisors Chicago, Illinois $94.2B AUM 21.24% 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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Sofinnova Investments Menlo Park, California $2.63B AUM 117.41% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Jane Street's INBX Position: Q1 2026 in Review

Jane Street reduced its Inhibrx (INBX) stake by 72% in Q1 2026, selling an estimated $1.77M and leaving 9,196 shares worth $618K. The position accounts for ﹤0.01% of the portfolio, ranked #7545.

Jane Street first reported a position in INBX in Q2 2024 and has held it in 8 quarters since. The position peaked at $2.61M in Q4 2025. 135 funds tracked by Wall St. Rank hold INBX as of Q1 2026.

Jane Street held 9,196 shares of Inhibrx worth $618K as of Q1 2026.
Jane Street sold 23,823 Inhibrx shares in Q1 2026, an estimated $1.77M.
Inhibrx made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #7545 holding.
Jane Street first reported a position in Inhibrx in Q2 2024 and has held it in 8 quarters since.
Jane Street's Inhibrx position peaked at $2.61M in Q4 2025.
135 funds tracked by Wall St. Rank held Inhibrx as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.