ALEC — ALECTOR 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 ALEC?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 3 tracked investors who changed their ALEC position last quarter, 2 bought and 1 sold (67% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).
- +2 tracked investors added or increased positions last quarter (Izzy Englander, Ken Griffin)
- +3 tracked investors reported holding ALEC at their latest filing
- +Macro Health is 55/100 in a Squeeze regime — historically acceptable for this sectorsource
- −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 8/20/2026.
About ALECTOR INC (ALEC)
ALECTOR INC (ALEC) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $4M. Across recent filings, tracked investors recorded 6 new positions, 11 increased, 8 reduced, and 3 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in ALEC
How many top investors track ALEC
A small number of top investors own this.
ALEC Ownership Composition
How ALECTOR INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant100.0%
Tracked investors currently reporting ALEC
1 tracked investor has since exited this position — listed separately below.
- Izzy EnglanderJun 30, 2026Millennium ManagementShares2MValue$4M% Portfolio0.00%
- Steve CohenJun 30, 2026Point72 Asset ManagementShares26.7KValue$53.7K% Portfolio0.00%
- Ken GriffinJun 30, 2026Citadel AdvisorsShares500.1KValue$1M% Portfolio0.00%
Previously held ALEC
These investors reported ALEC in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Paul Tudor Jones | Tudor Investment Corp | 41.3K | $64.4K | Dec 31, 2025 |
Recent activity
- Reduced$238.7K(-67.33%)Nov 14, 2024
- Increased$141.2K(45.82%)Feb 14, 2025
- Increased$325.7K(254.58%)May 15, 2025
- Increased$575.1K(55.13%)Aug 14, 2025
- Increased$2.1M(15.40%)Feb 17, 2026
- Increased$4.3M(48.49%)May 15, 2026
- Increased$4M(0.49%)Aug 14, 2026
- Increased$1M(1545.33%)Nov 14, 2024
- Reduced$104.6K(-82.65%)May 15, 2025
- Increased$833K(599.71%)Aug 14, 2025
- Reduced$1.6M(-7.18%)Nov 14, 2025
- Reduced$280.7K(-67.42%)Feb 17, 2026
- Increased$1M(357.81%)Aug 14, 2026
- Reduced$393.9K(-86.24%)Nov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- New$76.8KNov 14, 2025
- Reduced$36K(-10.95%)Feb 17, 2026
- Increased$172.2K(246.68%)May 15, 2026
- Reduced$53.7K(-66.66%)Aug 14, 2026
- $92.3KAug 14, 2024
- Sold$0(-100.00%)Nov 14, 2024
- $77.1KFeb 14, 2025
- Unchanged$50.2K(0.00%)May 15, 2025
- Reduced$57.1K(-0.00%)Aug 14, 2025
- Increased$122.2K(1.19%)Dec 9, 2025
- Sold$0(-100.00%)May 15, 2026
- New$2.8MSep 16, 2024
- New$59.9KAug 14, 2024
- $615.3KMay 15, 2024
Frequently asked questions
- How many institutional investors hold ALEC?
- 3 tracked institutional investors disclosed a position in ALEC (ALECTOR INC) in their most recent 13F filing.
- Who is the largest institutional holder of ALEC?
- Izzy Englander, Millennium Management, holds the largest disclosed position in ALEC, valued at $4M.
- Did institutional ownership of ALEC increase or decrease?
- Across recent 13F filings, tracked investors recorded 6 new positions, 11 increased, 8 reduced, and 3 fully exited ALEC.
- Where does this ALEC 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.