Ticker · CUSIP 40637H109

HALO

HALOZYME THERAPEUTICS INC
···Share
Holders (tracked)
15
Combined shares
8,863,083
Combined value
$596.49M
Last close
$69.29
Quarter
2025Q4
Price · 1Y$69.29+10.50 (+17.86%)H $81.23 · L $47.91 · Avg Vol 2.1M
Congress buy
$50.00$60.00$70.00$80.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
15132024Q12025Q4
Price is +3.0% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

24 events
  1. −244,801 shares · 2025Q4
    Position
  2. −583,387 shares · 2025Q4
    Position
  3. +109 shares · 2025Q4
    Position
  4. +11,700 shares · 2025Q4
    Position
  5. +189,848 shares · 2025Q4
    Position
  6. −1,000,909 shares · 2025Q4
    Position
  7. −598,555 shares · 2025Q4
    Position
  8. +236,364 shares · 2025Q4
    Position
  9. +74,496 shares · 2025Q4
    Position
  10. −437,498 shares · 2025Q4
    Position
  11. +1,904,922 shares · 2025Q4
    Position
  12. +56,960 shares · 2025Q4
    Position
  13. −39,140 shares · 2025Q3
    Position
  14. +589,711 shares · 2025Q3
    Position
  15. +537,111 shares · 2025Q3
    Position
  16. +876,086 shares · 2025Q3
    Position
  17. +1,631,571 shares · 2025Q3
    Position
  18. −206,768 shares · 2025Q3
    Position
  19. −66,535 shares · 2025Q3
    Position
  20. +661,600 shares · 2025Q3
    Position
  21. −865,568 shares · 2025Q3
    Position
  22. +487,081 shares · 2025Q3
    Position
  23. +29,147 shares · 2025Q3
    Position
  24. −125,868 shares · 2024Q3
    Position

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of HALO…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Ken Fisher (Fisher Asset Mgmt)2016Q1$37.00+87.3%$32.4M
Paul Tudor Jones (Tudor Investment)2017Q2$37.26+86.0%$222K
Paul Tudor Jones (Tudor Investment)2017Q2$37.26+86.0%$222K
T. Rowe Price2016Q1$41.90+65.4%$16.8M
Wellington Management2017Q4$48.54+42.7%$2.6M
Izzy Englander (Millennium Mgmt)2016Q1$62.19+11.4%$3.5M
Izzy Englander (Millennium Mgmt)2016Q1$62.19+11.4%$3.5M
D.E. Shaw & Co.2016Q3$64.47+7.5%$114.3M
AQR Capital Management2016Q1$64.70+7.1%$80.3M
Renaissance Technologies2016Q1$66.90+3.6%$39.0M
Two Sigma Investments2017Q2$68.27+1.5%$49.7M
Ken Griffin (Citadel Advisors)2016Q2$69.08+0.3%$1.4M
Ken Griffin (Citadel Advisors)2016Q2$69.08+0.3%$1.4M
Ray Dalio (Bridgewater Associates)2023Q2$72.04-3.8%$38.9M
Norges Bank (Norway SWF)2016Q1$1847.24-96.2%$132.0M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions2
Trimmed4
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$48.20B
2022Q2
14
$55.29B
2022Q3
15
$939.1M
2022Q4
15
$1.30B
2023Q1
13
$919.1M
2023Q2
14
$923.4M
2023Q3
14
$862.7M
2023Q4
11
$823.8M
2024Q1
13
$910.0M
2024Q2
14
$1.18B
2024Q3
12
$202.4M
2024Q4
12
$269.6M
2025Q1
11
$207.7M
2025Q2
13
$296.6M
2025Q3
12
$679.0M
2025Q4
15
$596.5M
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2026-03-09Gilbert CisnerosBuy$1K – $15KPDF ↗
2025-03-24Gilbert CisnerosSell (P)$1K – $15KPDF ↗

Who owns HALO

15 super-investors · 2025Q4
Tracked stake
8.86M
shares
Combined value
$596M
% of shares outstanding
shares-out unknown
Quarter action mix
New3Added6Trim4Sold2
#ManagerSharesValue
1Norges Bank
Norway SWF
1.90M$128M
2D.E. Shaw & Co.1.65M$111M
3Izzy Englander
Millennium Mgmt
1.46M$99M
4AQR Capital Management1.16M$78M
5Two Sigma Investments717.4K$48M
6Renaissance Technologies562.7K$38M
7Ray Dalio
Bridgewater Associates
561.6K$38M
8Ken Fisher
Fisher Asset Mgmt
467.9K$31M
9T. Rowe Price242.0K$16M
10Izzy Englander
Millennium Mgmt
50.0K$3M
11Wellington Management37.2K$3M
12Ken Griffin
Citadel Advisors
19.7K$1M
13Ken Griffin
Citadel Advisors
16.2K$1M
14Paul Tudor Jones
Tudor Investment
8.5K$572K
15Paul Tudor Jones
Tudor Investment
3.2K$215K

Recent moves

20 transactions
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