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Oberweis Asset Management’s Halozyme HALO Stock Holding History

Oberweis Asset Management’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 		$14.2M Buy
219,930
+102,350
+87% +$7.22M 0.42% 94
2025
Q4 		$7.91M Hold
117,580
– – 0.29% 124
2025
Q3 		$8.62M Sell
117,580
-64,620
-35% -$4.29M 0.33% 113
2025
Q2 		$9.48M Buy
+182,200
New +$10.4M 0.41% 89
2024
Q1 		– Sell
-96,300
Closed -$3.56M – 204
2023
Q4 		$3.56M Buy
96,300
+45,800
+91% +$1.72M 0.33% 119
2023
Q3 		$1.93M Buy
+50,500
New +$2.07M 0.2% 161
2023
Q2 		– Sell
-164,040
Closed -$6.26M – 190
2023
Q1 		$6.26M Buy
164,040
+20,650
+14% +$969K 0.97% 17
2022
Q4 		$8.16M Buy
143,390
+26,850
+23% +$1.37M 1.73% 10
2022
Q3 		$4.61M Buy
116,540
+13,490
+13% +$596K 1.08% 14
2022
Q2 		$4.53M Sell
103,050
-4,400
-4% -$190K 1.15% 12
2022
Q1 		$4.29M Buy
107,450
+1,800
+2% +$64.1K 0.86% 17
2021
Q4 		$4.25M Buy
105,650
+35,670
+51% +$1.33M 0.78% 22
2021
Q3 		$2.85M Buy
69,980
+780
+1% +$32.6K 0.59% 23
2021
Q2 		$3.14M Buy
69,200
+300
+0.4% +$13.3K 0.69% 22
2021
Q1 		$2.87M Buy
+68,900
New +$3.15M 0.59% 26

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

Oberweis Asset Management's HALO Position: Q1 2026 in Review

Oberweis Asset Management increased its Halozyme (HALO) stake by 87% in Q1 2026, buying an estimated $7.22M and bringing the position to 219,930 shares worth $14.2M. The position accounts for 0.42% of the portfolio, ranked #94.

Oberweis Asset Management first reported a position in HALO in Q1 2021 and has held it in 15 quarters since. 634 funds tracked by Wall St. Rank hold HALO as of Q1 2026.

  • Oberweis Asset Management held 219,930 shares of Halozyme worth $14.2M as of Q1 2026.
  • Oberweis Asset Management bought 102,350 Halozyme shares in Q1 2026, an estimated $7.22M.
  • Halozyme made up 0.42% of Oberweis Asset Management's portfolio in Q1 2026, its #94 holding.
  • Oberweis Asset Management first reported a position in Halozyme in Q1 2021 and has held it in 15 quarters since.
  • 634 funds tracked by Wall St. Rank held Halozyme as of Q1 2026.

Based on Oberweis Asset Management's 13F filing for Q1 2026, filed 15 May 2026.