HALO — HALOZYME THERAPEUTICS INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying HALO?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 3 tracked investors who changed their HALO position last quarter, 2 bought and 1 sold (67% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 52/100 in a Squeeze regime).
- +2 tracked investors added or increased positions last quarter (Paul Tudor Jones, Steve Cohen)
- +5 tracked investors reported holding HALO at their latest filing
- −1 tracked investor reduced or exited last quarter (1 reduced, 0 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/4/2026.
About HALOZYME THERAPEUTICS INC (HALO)
HALOZYME THERAPEUTICS INC (HALO) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $102M. Across recent filings, tracked investors recorded 4 new positions, 1 increased, 1 reduced, and 0 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in HALO
How many top investors track HALO
A small number of top investors own this.
HALO Ownership Composition
How HALOZYME THERAPEUTICS INC is held across tracked investor types, based on reported 13F positions.
- Other57.6%
- Hedge Funds42.4%
Tracked investors reporting HALO
- Izzy EnglanderMar 31, 2026Millennium ManagementShares471.3KValue$30.5M% Portfolio0.01%
- Steve CohenMar 31, 2026Point72 Asset ManagementShares47.4MValue$60.9M% Portfolio0.08%
- Ken GriffinMar 31, 2026Citadel AdvisorsShares281.9KValue$18.2M% Portfolio0.00%
- Ray DalioMar 31, 2026Bridgewater AssociatesShares511.4KValue$33.1M% Portfolio0.15%
- Paul Tudor JonesMar 31, 2026Tudor Investment CorpShares14.7KValue$950.1K% Portfolio0.00%
Recent activity
- $787.4KFeb 17, 2026
- $950.1KMay 15, 2026
- New$60.9MMay 15, 2026
- Reduced$33.1M(-8.93%)May 15, 2026
- Increased$37.8M(15.29%)Feb 13, 2026
- New$35.7MNov 13, 2025
Frequently asked questions
- How many institutional investors hold HALO?
- 5 tracked institutional investors disclosed a position in HALO (HALOZYME THERAPEUTICS INC) in their most recent 13F filing.
- Who is the largest institutional holder of HALO?
- Izzy Englander, Millennium Management, holds the largest disclosed position in HALO, valued at $102M.
- Did institutional ownership of HALO increase or decrease?
- Across recent 13F filings, tracked investors recorded 4 new positions, 1 increased, 1 reduced, and 0 fully exited HALO.
- Where does this HALO ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.