Simplex Trading
KZR

Simplex Trading’s Kezar Life Sciences KZR Stock Holding History

Simplex Trading’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 		$148K Buy
19,900
+400
+2% +$2.6K ﹤0.01% 4650
2025
Q4 		$123K Buy
+19,500
New +$114K ﹤0.01% 4772
2024
Q1 		– Sell
-1,040
Closed -$9K – 9375
2023
Q4 		$9K Buy
1,040
+10
+1% +$88 ﹤0.01% 7514
2023
Q3 		$12K Buy
1,030
+70
+7% +$1.24K ﹤0.01% 7051
2023
Q2 		$23K Sell
960
-60
-6% -$1.56K ﹤0.01% 6632
2023
Q1 		$31K Sell
1,020
-340
-25% -$19.7K ﹤0.01% 6450
2022
Q4 		$95K Sell
1,360
-25,740
-95% -$1.91M ﹤0.01% 5144
2022
Q3 		$2.33M Buy
27,100
+2,880
+12% +$280K ﹤0.01% 1820
2022
Q2 		$2M Buy
24,220
+9,150
+61% +$807K ﹤0.01% 1868
2022
Q1 		$2.5M Buy
15,070
+13,730
+1,025% +$1.97M ﹤0.01% 1875
2021
Q4 		$224K Buy
1,340
+840
+168% +$94.8K ﹤0.01% 5025
2021
Q3 		$27K Hold
500
– – ﹤0.01% 8163
2021
Q2 		$27K Buy
500
+499
+49,900% +$28.3K ﹤0.01% 8315
2021
Q1 		$5K Buy
+1
New +$58 ﹤0.01% 8209

Other funds holding KZR

BCM
BML Capital Management Zionsville, Indiana $156M AUM 129.82% 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 $4.04T AUM
RC
Rangeley Capital New Canaan, Connecticut $103M AUM 77.32% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
PLC
Peapod Lane Capital Bedford Hills, New York $122M AUM 67.29% 1-Year Est. Return

Simplex Trading's KZR Position: Q3 2025 in Review

Simplex Trading sold out of Kezar Life Sciences (KZR) in Q3 2025, closing a stake of 43 shares.

Simplex Trading first reported a position in KZR in Q2 2020 and held it in 17 quarters. The position peaked at $259K in Q4 2021. 39 funds tracked by Wall St. Rank hold KZR as of Q3 2025.

  • Simplex Trading reported no remaining Kezar Life Sciences position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 43 Kezar Life Sciences shares in Q3 2025.
  • Simplex Trading first reported a position in Kezar Life Sciences in Q2 2020 and held it in 17 quarters.
  • Simplex Trading's Kezar Life Sciences position peaked at $259K in Q4 2021.
  • 39 funds tracked by Wall St. Rank held Kezar Life Sciences as of Q3 2025.

Based on Simplex Trading's 13F filing for Q3 2025, filed 12 Nov 2025.