Millennium Management
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Millennium Management’s Halozyme HALO Stock Holding History

Millennium 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
2023
Q4 		– Sell
-7,400
Closed -$283K – 6255
2023
Q3 		$283K Buy
+7,400
New +$303K ﹤0.01% 4960
2015
Q3 		– Sell
-100,000
Closed -$2.26M – 3561
2015
Q2 		$2.26M Buy
+100,000
New +$1.76M ﹤0.01% 1838

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

Millennium Management's HALO Position: Q1 2026 in Review

Millennium Management reduced its Halozyme (HALO) stake by 68% in Q1 2026, selling an estimated $70M and leaving 471,284 shares worth $30.5M. The position accounts for 0.01% of the portfolio, ranked #1216.

Millennium Management first reported a position in HALO in Q2 2013 and has held it in 47 quarters since. The position peaked at $124M in Q2 2015. 634 funds tracked by Wall St. Rank hold HALO as of Q1 2026.

  • Millennium Management held 471,284 shares of Halozyme worth $30.5M as of Q1 2026.
  • Millennium Management sold 992,664 Halozyme shares in Q1 2026, an estimated $70M.
  • Halozyme made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1216 holding.
  • Millennium Management first reported a position in Halozyme in Q2 2013 and has held it in 47 quarters since.
  • Millennium Management's Halozyme position peaked at $124M in Q2 2015.
  • 634 funds tracked by Wall St. Rank held Halozyme as of Q1 2026.

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