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ALECTOR (ALEC)
NASDAQ
$1.80+$0.02 (+1.13%)
Price as of Jun 03, 2026 6:44 PM EDT- $239.8MMarket Cap
- 14.52%1-Year Change
- BiotechnologyIndustry
ALECTOR (ALEC)
$1.80+$0.02 (+1.13%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
TCG CROSSOVER MANAGEMENT, LLC | 9.01% | 10.0M | 0 (0.00%) | Mar 31, 2026 |
BLACKROCK FUNDING, INC. /DE | 8.23% | 9.1M | -215,297 (-2.36%) | Dec 31, 2024 |
BLACKROCK INC. | 8.20% | 9.1M | +617,872 (+6.79%) | Jun 30, 2024 |
BLACKROCK, INC. | 6.97% | 7.7M | +593,479 (+7.67%) | Mar 31, 2026 |
RTW INVESTMENTS, LP | 6.30% | 7.0M | +7.0M (+100.00%) | Sep 30, 2025 |
VANGUARD GROUP INC | 6.22% | 6.9M | +873,395 (+12.64%) | Dec 31, 2025 |
ACADIAN ASSET MANAGEMENT LLC | 3.64% | 4.0M | +596,336 (+14.77%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
FIDELITY MT VERNON STREET TRUST | 5.46% | 6.1M | 0 (0.00%) | Feb 28, 2026 |
VANGUARD INDEX FUNDS | 3.22% | 3.6M | 0 (0.00%) | Mar 31, 2026 |
iSHARES TRUST | 2.87% | 3.2M | +273,471 (+8.59%) | Mar 31, 2026 |
FIDELITY SELECT PORTFOLIOS | 2.00% | 2.2M | 0 (0.00%) | Feb 28, 2026 |
T. Rowe Price Health Sciences Fund, Inc. | 1.43% | 1.6M | 0 (0.00%) | Mar 31, 2026 |
JPMORGAN TRUST II | 1.36% | 1.5M | 0 (0.00%) | Feb 28, 2026 |
FIDELITY CONCORD STREET TRUST | 0.76% | 848,215 | +124,669 (+14.70%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions1.2B (78.67%)
- Mutual Funds291.8M (19.01%)
- Insiders35.5M (2.31%)
- Other0 (0.00%)
Insider Transactions
- 2.31% (35.5M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 5Number of InsiderSelling (last 12 months)
- $19.1MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Wong-Sarad Grace Principal Accounting Officer | Sell | Jun 03, 2026 | $6,542.73 | 3,475 | $1.88 | 95,461 |
Berkley Neil Lindsay CFO & Chief Business Officer | Sell | Jun 02, 2026 | $38,220.51 | 19,360 | $1.97 | 379,900 |
Rosenthal Arnon Chief Executive Officer | Sell | Jun 02, 2026 | $172,190.55 | 87,216 | $1.97 | 2.4M |
Wong-Sarad Grace Principal Accounting Officer | Sell | Jun 02, 2026 | $11,270.71 | 5,709 | $1.97 | 98,936 |
SCHELLER RICHARD H | Award | Jun 01, 2026 | $0.00 | 10,833 | $0.00 | 106,199 |
Berkley Neil Lindsay CFO & Chief Business Officer | Award | Mar 15, 2026 | $0.00 | 54,600 | $0.00 | 399,260 |
Rosenthal Arnon Chief Executive Officer | Award | Mar 13, 2026 | $0.00 | 116,246 | $0.00 | 2.5M |
Wong-Sarad Grace Principal Accounting Officer | Sell | Mar 10, 2026 | $2,650.00 | 1,000 | $2.65 | 106,465 |
Wong-Sarad Grace Principal Accounting Officer | Sell | Mar 03, 2026 | $7,012.11 | 3,367 | $2.08 | 107,465 |
Rosenthal Arnon Chief Executive Officer | Sell | Mar 02, 2026 | $173,821.83 | 81,864 | $2.12 | 2.3M |
Berkley Neil Lindsay CFO & Chief Business Officer | Sell | Mar 02, 2026 | $62,953.72 | 29,649 | $2.12 | 344,660 |
Wong-Sarad Grace Principal Accounting Officer | Sell | Mar 02, 2026 | $17,137.96 | 8,071 | $2.12 | 110,832 |
Wong-Sarad Grace Principal Accounting Officer | Sell | Feb 26, 2026 | $10,197.50 | 4,079 | $2.50 | 118,903 |
Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO | Award | Nov 10, 2025 | $0.00 | 195,000 | $0.00 | 195,000 |
Wong-Sarad Grace Principal Accounting Officer | Award | Nov 10, 2025 | $0.00 | 48,535 | $0.00 | 48,535 |
Rosenthal Arnon Chief Executive Officer | Award | Nov 10, 2025 | $0.00 | 522,500 | $0.00 | 522,500 |
Wong-Sarad Grace Principal Accounting Officer | Award | Nov 10, 2025 | $0.00 | 32,343 | $0.00 | 135,791 |
Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO | Award | Nov 10, 2025 | $0.00 | 65,000 | $0.00 | 411,570 |
Rosenthal Arnon Chief Executive Officer | Award | Nov 10, 2025 | $0.00 | 174,167 | $0.00 | 2.5M |
Wong-Sarad Grace Principal Accounting Officer | Sell | Sep 02, 2025 | $14,756.09 | 5,910 | $2.50 | 103,448 |
Rosenthal Arnon Chief Executive Officer | Sell | Sep 02, 2025 | $128,740.00 | 51,562 | $2.50 | 2.4M |
Berkley Neil Lindsay Principal Financial Officer | Sell | Sep 02, 2025 | $39,554.31 | 15,842 | $2.50 | 346,570 |
Hammond Paula | Sell | Aug 26, 2025 | $32,998.00 | 14,000 | $2.36 | 74,909 |
Berkley Neil Lindsay Principal Financial Officer | Award | Jul 01, 2025 | $0.00 | 18,000 | $0.00 | 18,000 |
Rosenthal Arnon Chief Executive Officer | Award | Jul 01, 2025 | $0.00 | 45,700 | $0.00 | 45,700 |
Kenkare-Mitra Sara President and Head of R&D | Award | Jul 01, 2025 | $0.00 | 18,250 | $0.00 | 18,250 |
Rosenthal Arnon Chief Executive Officer | Award | Jul 01, 2025 | $0.00 | 137,125 | $0.00 | 2.6M |
Kenkare-Mitra Sara President and Head of R&D | Award | Jul 01, 2025 | $0.00 | 54,725 | $0.00 | 566,977 |
Yaffe Kristine | Sell | Jun 20, 2025 | $1,440.00 | 1,000 | $1.44 | 95,409 |
Yaffe Kristine | Award | Jun 11, 2025 | $0.00 | 9,450 | $0.00 | 9,450 |