Jane Street
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Jane Street’s Halozyme HALO Stock Holding History

Jane Street’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
2026
Q1 		$2.18M Sell
33,800
-16,300
-33% -$1.15M ﹤0.01% 4913
2025
Q4 		$3.37M Buy
50,100
+46,700
+1,374% +$3.14M ﹤0.01% 3855
2025
Q3 		$249K Sell
3,400
-23,800
-88% -$1.58M ﹤0.01% 9268
2025
Q2 		$1.41M Buy
27,200
+11,200
+70% +$637K ﹤0.01% 4982
2025
Q1 		$1.02M Buy
+16,000
New +$929K ﹤0.01% 5532
2024
Q4 		– Sell
-13,300
Closed -$761K – 9874
2024
Q3 		$761K Buy
+13,300
New +$762K ﹤0.01% 6438
2023
Q4 		– Sell
-6,000
Closed -$229K – 9420
2023
Q3 		$229K Sell
6,000
-1,200
-17% -$49.2K ﹤0.01% 7443
2023
Q2 		$260K Sell
7,200
-700
-9% -$23.9K ﹤0.01% 7343
2023
Q1 		$302K Sell
7,900
-36,200
-82% -$1.7M ﹤0.01% 7190
2022
Q4 		$2.51M Buy
44,100
+18,200
+70% +$932K ﹤0.01% 3498
2022
Q3 		$1.02M Buy
25,900
+8,300
+47% +$367K ﹤0.01% 5378
2022
Q2 		$774K Sell
17,600
-700
-4% -$30.3K ﹤0.01% 5956
2022
Q1 		$730K Sell
18,300
-8,200
-31% -$292K ﹤0.01% 6768
2021
Q4 		$1.07M Buy
26,500
+9,200
+53% +$343K ﹤0.01% 5766
2021
Q3 		$704K Buy
17,300
+6,000
+53% +$251K ﹤0.01% 6631
2021
Q2 		$513K Sell
11,300
-900
-7% -$39.8K ﹤0.01% 7181
2021
Q1 		$509K Sell
12,200
-4,600
-27% -$210K ﹤0.01% 6774
2020
Q4 		$718K Buy
16,800
+4,000
+31% +$144K ﹤0.01% 5183
2020
Q3 		$336K Sell
12,800
-17,300
-57% -$482K ﹤0.01% 5715
2020
Q2 		$807K Buy
+30,100
New +$679K ﹤0.01% 4382
2016
Q3 		– Sell
-11,800
Closed -$102K – 4196
2016
Q2 		$102K Buy
+11,800
New +$116K ﹤0.01% 3891
2016
Q1 		– Sell
-10,900
Closed -$189K – 4296
2015
Q4 		$189K Buy
+10,900
New +$174K ﹤0.01% 3631

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

Jane Street's HALO Position: Q1 2026 in Review

Jane Street increased its Halozyme (HALO) stake by 406% in Q1 2026, buying an estimated $47M and bringing the position to 831,707 shares worth $53.8M. The position accounts for 0.01% of the portfolio, ranked #1012.

Jane Street first reported a position in HALO in Q2 2013 and has held it in 39 quarters since. The position peaked at $78.9M in Q3 2025. 635 funds tracked by Wall St. Rank hold HALO as of Q1 2026.

  • Jane Street held 831,707 shares of Halozyme worth $53.8M as of Q1 2026.
  • Jane Street bought 667,363 Halozyme shares in Q1 2026, an estimated $47M.
  • Halozyme made up 0.01% of Jane Street's portfolio in Q1 2026, its #1012 holding.
  • Jane Street first reported a position in Halozyme in Q2 2013 and has held it in 39 quarters since.
  • Jane Street's Halozyme position peaked at $78.9M in Q3 2025.
  • 635 funds tracked by Wall St. Rank held Halozyme as of Q1 2026.

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