American Century Companies’s Jade Biosciences JBIO Stock Holding History

American Century Companies’s Portfolio JBIO Stock Details JBIO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.53M	Buy	68,980 +35,611	+107%	+$743K	﹤0.01%	2288
2026 Q1	$469K	Buy	+33,369	New	+$483K	﹤0.01%	2531
2024 Q2	–	Sell	-204	Closed	-$211K	–	2882
2024 Q1	$211K	Buy	+204	New	+$156K	﹤0.01%	2752

Other funds holding JBIO

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Jupiter Topco New York $245B AUM

FFM

Fairmount Funds Management West Conshohocken, Pennsylvania $1.51B AUM 546.08% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return

Bellevue Group Kuesnacht, Switzerland $4.75B AUM 68.58% 1-Year Est. Return

PBA

Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

American Century Companies's JBIO Position: Q2 2026 in Review

American Century Companies increased its Jade Biosciences (JBIO) stake by 107% in Q2 2026, buying an estimated $743K and bringing the position to 68,980 shares worth $1.53M. The position accounts for ﹤0.01% of the portfolio, ranked #2288.

American Century Companies first reported a position in JBIO in Q1 2024 and has held it in 3 quarters since. 153 funds tracked by Wall St. Rank hold JBIO as of Q2 2026.

American Century Companies held 68,980 shares of Jade Biosciences worth $1.53M as of Q2 2026.
American Century Companies bought 35,611 Jade Biosciences shares in Q2 2026, an estimated $743K.
Jade Biosciences made up ﹤0.01% of American Century Companies's portfolio in Q2 2026, its #2288 holding.
American Century Companies first reported a position in Jade Biosciences in Q1 2024 and has held it in 3 quarters since.
153 funds tracked by Wall St. Rank held Jade Biosciences as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.