Jane Street’s Kezar Life Sciences KZR Stock Holding History

Jane Street’s Portfolio KZR Stock Details KZR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$159K	Buy	+21,367	New	+$139K	﹤0.01%	10342
2024 Q4	–	Sell	-5,954	Closed	-$46K	–	10042
2024 Q3	$46K	Sell	5,954 -48,952	-89%	-$295K	﹤0.01%	9193
2024 Q2	$329K	Buy	54,906 +52,449	+2,135%	+$399K	﹤0.01%	7663
2024 Q1	$22.2K	Sell	2,457 -4,486	-65%	-$40.9K	﹤0.01%	8889
2023 Q4	$65.8K	Buy	+6,943	New	+$61K	﹤0.01%	8705
2023 Q3	–	Sell	-16,991	Closed	-$416K	–	9044
2023 Q2	$416K	Buy	16,991 +7,731	+83%	+$201K	﹤0.01%	6599
2023 Q1	$290K	Buy	9,260 +7,728	+504%	+$447K	﹤0.01%	7258
2022 Q4	$108K	Sell	1,532 -978	-39%	-$72.5K	﹤0.01%	8050
2022 Q3	$216K	Sell	2,510 -7,106	-74%	-$690K	﹤0.01%	8051
2022 Q2	$795K	Buy	9,616 +673	+8%	+$59.4K	﹤0.01%	5904
2022 Q1	$1.49M	Buy	8,943 +5,822	+187%	+$836K	﹤0.01%	5315
2021 Q4	$522K	Buy	+3,121	New	+$352K	﹤0.01%	7181
2020 Q3	–	Sell	-2,278	Closed	-$118K	–	7569
2020 Q2	$118K	Buy	+2,278	New	+$115K	﹤0.01%	6653

Other funds holding KZR

BCM

BML Capital Management Zionsville, Indiana $176M AUM 123.21% 1-Year Est. Return

SCM

Suvretta Capital Management New York $3.92B AUM 86.67% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Rangeley Capital New Canaan, Connecticut $103M AUM 77.36% 1-Year Est. Return

AAA

Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

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

PLC

Peapod Lane Capital Bedford Hills, New York $148M AUM 89.92% 1-Year Est. Return

Jane Street's KZR Position: Q1 2026 in Review

Jane Street opened a new position in Kezar Life Sciences (KZR) in Q1 2026: 21,367 shares worth $159K. The stake represents ﹤0.01% of the portfolio and ranks #10342 among its holdings. This is a return to the name: Jane Street previously reported a position in KZR as recently as Q3 2024.

Jane Street first reported a position in KZR in Q2 2020 and has held it in 13 quarters since. The position peaked at $1.49M in Q1 2022. 43 funds tracked by Wall St. Rank hold KZR as of Q1 2026.

Jane Street held 21,367 shares of Kezar Life Sciences worth $159K as of Q1 2026.
Kezar Life Sciences was a new Jane Street position in Q1 2026.
Kezar Life Sciences made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10342 holding.
Jane Street first reported a position in Kezar Life Sciences in Q2 2020 and has held it in 13 quarters since.
Jane Street's Kezar Life Sciences position peaked at $1.49M in Q1 2022.
43 funds tracked by Wall St. Rank held Kezar Life Sciences as of Q1 2026.

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