Simplex Trading
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Simplex Trading’s Halozyme HALO Stock Holding History

Simplex Trading’s Portfolio HALO Stock Details HALO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-1,069
Closed -$71K – 9428
2025
Q2 		$55K Buy
+1,069
New +$60.8K ﹤0.01% 5828
2023
Q4 		– Sell
-5,485
Closed -$207K – 9201
2023
Q3 		$209K Buy
5,485
+2,146
+64% +$87.9K ﹤0.01% 4299
2023
Q2 		$120K Buy
+3,339
New +$114K ﹤0.01% 4857
2022
Q4 		– Sell
-3,831
Closed -$196K – 9651
2022
Q3 		$151K Buy
+3,831
New +$169K ﹤0.01% 4977
2021
Q2 		– Sell
-11,159
Closed -$494K – 10275
2021
Q1 		$0 Buy
11,159
+10,375
+1,323% +$474K ﹤0.01% 9267
2020
Q4 		$33K Sell
784
-32,343
-98% -$1.16M ﹤0.01% 6590
2020
Q3 		$870K Buy
+33,127
New +$922K ﹤0.01% 2388
2020
Q2 		– Sell
-10,032
Closed -$226K – 7882
2020
Q1 		$180K Buy
+10,032
New +$190K ﹤0.01% 3724
2019
Q3 		– Sell
-9,071
Closed -$149K – 7485
2019
Q2 		$155K Sell
9,071
-491
-5% -$7.92K ﹤0.01% 3725
2019
Q1 		$153K Buy
9,562
+156
+2% +$2.53K ﹤0.01% 3895
2018
Q4 		$137K Sell
9,406
-3,729
-28% -$59.5K ﹤0.01% 3540
2018
Q3 		$238K Buy
13,135
+5,418
+70% +$94.9K ﹤0.01% 3453
2018
Q2 		$130K Buy
7,717
+1,392
+22% +$26.3K ﹤0.01% 3972
2018
Q1 		$123K Sell
6,325
-4,752
-43% -$92K 0.01% 1634
2017
Q4 		$224K Buy
11,077
+6,673
+152% +$123K 0.01% 1194
2017
Q3 		$76K Buy
+4,404
New +$59.7K ﹤0.01% 1946
2017
Q2 		– Sell
-1,500
Closed -$20K – 6363
2017
Q1 		$19K Buy
+1,500
New +$19K ﹤0.01% 3297
2015
Q4 		– Sell
-309
Closed -$4.92K – 5666
2015
Q3 		$4K Sell
309
-13,624
-98% -$274K ﹤0.01% 4153
2015
Q2 		$314K Buy
13,933
+10,841
+351% +$191K 0.03% 558
2015
Q1 		$44K Buy
+3,092
New +$44.6K 0.01% 1655

Other funds holding HALO

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Simplex Trading's HALO Position: Q3 2025 in Review

Simplex Trading sold out of Halozyme (HALO) in Q3 2025, closing a stake of 1,069 shares — an estimated $71K sold.

Simplex Trading first reported a position in HALO in Q1 2015 and held it in 20 quarters. The position peaked at $870K in Q3 2020. 602 funds tracked by Wall St. Rank hold HALO as of Q3 2025.

  • Simplex Trading reported no remaining Halozyme position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 1,069 Halozyme shares in Q3 2025, an estimated $71K.
  • Simplex Trading first reported a position in Halozyme in Q1 2015 and held it in 20 quarters.
  • Simplex Trading's Halozyme position peaked at $870K in Q3 2020.
  • 602 funds tracked by Wall St. Rank held Halozyme as of Q3 2025.

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