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ALECTOR (ALEC)
NASDAQ
$1.79-$0.08 (-4.49%)
Price as of Oct 22, 2026 7:50 PM EDT- $208.8MMarket Cap
- 16.15%1-Year Change
- BiotechnologyIndustry
ALECTOR (ALEC)
$1.79-$0.08 (-4.49%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
TCG CROSSOVER MANAGEMENT, LLC | 8.96% | 10.0M | 0 (0.00%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 8.18% | 9.1M | -215,297 (-2.36%) | Dec 31, 2024 |
BLACKROCK INC. | 8.15% | 9.1M | +617,872 (+6.79%) | Jun 30, 2024 |
BLACKROCK, INC. | 7.03% | 7.8M | +106,634 (+1.36%) | Jun 30, 2026 |
RTW INVESTMENTS, LP | 6.26% | 7.0M | +7.0M (+100.00%) | Sep 30, 2025 |
VANGUARD GROUP INC | 6.19% | 6.9M | +873,395 (+12.64%) | Dec 31, 2025 |
ACADIAN ASSET MANAGEMENT LLC | 3.95% | 4.4M | +375,560 (+8.51%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 3.47% | 3.9M | +292,849 (+7.56%) | Jun 30, 2026 |
FIDELITY SALEM STREET TRUST | 0.97% | 1.1M | +983,667 (+90.98%) | Jul 31, 2026 |
VANGUARD EXPLORER FUND | 0.60% | 673,493 | +78,152 (+11.60%) | Jul 31, 2026 |
VANGUARD HORIZON FUNDS | 0.56% | 628,627 | 0 (0.00%) | Jun 30, 2026 |
VANGUARD VARIABLE INSURANCE FUNDS | 0.55% | 615,923 | 0 (0.00%) | Jun 30, 2026 |
VANGUARD SCOTTSDALE FUNDS | 0.49% | 544,408 | +82,548 (+15.16%) | May 31, 2026 |
SCHWAB STRATEGIC TRUST | 0.47% | 529,653 | +80,763 (+15.25%) | May 31, 2026 |
Current Ownership Distribution
- Institutions1.3B (77.81%)
- Mutual Funds334.8M (20.05%)
- Insiders35.8M (2.14%)
- Other0 (0.00%)
Insider Transactions
- 2.14% (35.8M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 3Number of InsiderSelling (last 12 months)
- $14.1MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 14, 2026 | $0.00 | 83,435 | $0.00 | 83,435 |
Berkley Neil Lindsay CFO & Chief Business Officer | Award | Oct 14, 2026 | $0.00 | 190,000 | $0.00 | 190,000 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 14, 2026 | $0.00 | 978,750 | $0.00 | 978,750 |
Berkley Neil Lindsay CFO & Chief Business Officer | Award | Oct 14, 2026 | $0.00 | 44,567 | $0.00 | 395,216 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 14, 2026 | $0.00 | 55,555 | $0.00 | 161,570 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 14, 2026 | $0.00 | 217,500 | $0.00 | 2.5M |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 20,000 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 500,000 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 20,000 | $0.00 | 20,000 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 500,000 | $0.00 | 500,000 |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 13,842 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 275,000 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 13,842 | $0.00 | 13,842 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 275,000 | $0.00 | 275,000 |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 20,454 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 520,000 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 20,454 | $0.00 | 20,454 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 520,000 | $0.00 | 520,000 |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 10,228 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 457,038 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 10,228 | $0.00 | 10,228 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 457,038 | $0.00 | 457,038 |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 11,552 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 417,213 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 11,552 | $0.00 | 11,552 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 417,213 | $0.00 | 417,213 |
Wong-Sarad Grace Principal Accounting Officer | Return | Oct 13, 2026 | $0.00 | 11,309 | $0.00 | 0 |
Rosenthal Arnon Chief Executive Officer | Return | Oct 13, 2026 | $0.00 | 119,446 | $0.00 | 0 |
Wong-Sarad Grace Principal Accounting Officer | Award | Oct 13, 2026 | $0.00 | 11,309 | $0.00 | 11,309 |
Rosenthal Arnon Chief Executive Officer | Award | Oct 13, 2026 | $0.00 | 119,446 | $0.00 | 119,446 |