Alector Ownership | Who Owns Alector?
Alector Ownership Summary
Alector is owned by 8.37% institutional investors, 9.84% insiders, and 81.79% retail investors. Fmr is the largest institutional shareholder, holding 15.13% of ALEC shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 5.32% of its assets in Alector shares.
ALEC Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Alector | 8.37% | 9.84% | 81.79% |
| Sector | Healthcare Stocks | 41.88% | 10.83% | 47.29% |
| Industry | Biotech Stocks | 44.05% | 10.78% | 45.17% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 15.18M | 15.13% | $44.94M |
| Blackrock | 9.10M | 9.70% | $41.32M |
| Blackrock funding, inc. /de | 7.20M | 7.17% | $21.31M |
| Rtw investments, lp | 6.99M | 6.96% | $20.69M |
| Vanguard group | 6.03M | 6.01% | $17.86M |
| Merck | 3.55M | 3.53% | $10.50M |
| Acadian asset management | 2.37M | 2.36% | $7.02M |
| Price t rowe associates inc /md/ | 2.19M | 2.18% | $6.47M |
| Geode capital management | 1.86M | 1.85% | $5.51M |
| State street | 1.73M | 1.73% | $5.13M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Merck | 3.55M | 4.60% | $10.50M |
| New leaf venture partners | 339.57K | 2.33% | $1.01M |
| Euclidean capital | 1.31M | 1.63% | $3.87M |
| 5am venture management | 995.84K | 1.08% | $2.95M |
| Medici capital | 481.97K | 1.03% | $1.43M |
| Dafna capital management | 798.35K | 0.58% | $2.36M |
| Eversept partners, lp | 1.49M | 0.30% | $4.41M |
| Rtw investments, lp | 6.99M | 0.26% | $20.69M |
| Ikarian capital | 760.00K | 0.23% | $2.25M |
| 683 capital management | 1.00M | 0.15% | $2.96M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Rtw investments, lp | 6.99M | 0.26% | 6.99M |
| 683 capital management | 1.00M | 0.15% | 1.00M |
| Barclays | 873.38K | 0.00% | 703.58K |
| Blackrock | 9.10M | 0.00% | 617.87K |
| Aqr capital management | 562.94K | 0.00% | 354.94K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ra capital management | - | - | -9.70M |
| Deep track capital, lp | - | - | -4.63M |
| Ecor1 capital | - | - | -4.06M |
| Price t rowe associates inc /md/ | 2.19M | 0.00% | -2.69M |
| Braidwell lp | - | - | -2.16M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Rtw investments, lp | 6.99M | 0.26% | 6.99M | $20.69M |
| 683 capital management | 1.00M | 0.15% | 1.00M | $2.96M |
| Simplex trading | 100.94K | 0.00% | 100.94K | $298.00K |
| Artia global partners lp | 71.03K | 0.03% | 71.03K | $210.25K |
| Hrt financial lp | 60.16K | 0.00% | 60.16K | $178.00K |
Sold Out
| Holder | Change |
|---|---|
| Sandy spring bank | -1.00 |
| Ifp advisors | -4.00 |
| Nelson, van denburg & campbell wealth management group | -13.00 |
| Parallel advisors | -15.00 |
| Farther finance advisors | -40.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 48 | -64.71% | 8,400,791 | -88.08% | 8 | 0.17% | 17 | -73.02% | 13 | -64.86% |
| Jun 30, 2025 | 134 | -5.63% | 70,260,765 | -3.24% | 70 | 1.31% | 60 | -7.69% | 38 | 11.76% |
| Mar 31, 2025 | 13 | -91.45% | 16,026,504 | -78.15% | 16 | 0.28% | 7 | -90.67% | 1 | -97.37% |
| Dec 31, 2024 | 149 | -9.15% | 73,332,095 | 1.08% | 75 | 1.35% | 73 | 7.35% | 38 | -20.83% |
| Sep 30, 2024 | 163 | 0.62% | 72,549,854 | -0.17% | 75 | 1.33% | 68 | -16.05% | 48 | -5.88% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Growth Compy Commingled Pl S | 5.38M | 5.32% | 7.10K |
| Fidelity Growth Compy Commingled Pl O | 5.02M | 5.16% | 13.10K |
| Fidelity Growth Company Fund | 3.70M | 3.66% | -22.17K |
| Fidelity Select Biotechnology | 3.59M | 3.55% | - |
| T. Rowe Price Health Sciences | 3.13M | 3.09% | -661.48K |
| Vanguard Total Stock Mkt Idx Inv | 2.42M | 2.39% | -53.33K |
| Vanguard US Total Market Shares ETF | 2.37M | 2.39% | - |
| iShares Russell 2000 ETF | 1.90M | 1.88% | - |
| Fidelity Growth Company K6 | 1.27M | 1.26% | 15.32K |
| Fidelity Series Growth Company | 999.46K | 0.99% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Sep 02, 2025 | Wong-Sarad Grace | Principal Accounting Officer | Sell | $14.76K |
| Sep 02, 2025 | Berkley Neil Lindsay | Principal Financial Officer | Sell | $39.55K |
| Sep 02, 2025 | Kenkare-Mitra Sara | President and Head of R&D | Sell | $59.02K |
| Sep 02, 2025 | Rosenthal Arnon | Chief Executive Officer | Sell | $128.74K |
| Aug 26, 2025 | Hammond Paula | - | Sell | $33.00K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | - |
| 2025 Q3 | - | 5 |
| 2025 Q2 | - | 4 |
| 2025 Q1 | - | 4 |
| 2024 Q4 | - | 4 |
ALEC Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools