ALECTOR, INC.
Ownership & governance
Executives 5Directors 8Avg age 66Avg tenure 6.4y
AR
Arnon Rosenthal
Chief Executive Officer
Age 71Since 2013-04-30Profile →
+12
Executives5
AR
Arnon Rosenthal→
Chief Executive Officer
Age 71Since 2013-04-30
NB
Neil Berkley→
Director of Finance/CFO
Age 52Since 2025-06-19
HL
Hua Long
Chief Tech/Sci/R&D Officer
—Since 2016-12-31
GW
Grace Wong-Sarad
Comptroller/Controller/Auditor
Age 52Since 2019-07-31
DP
Danielle Pasqualone
General Counsel
——
Board of directors8
AR
Arnon Rosenthal→
Director/Board Member
Age 71Since 2013-04-30
RS
Richard Scheller→
Director/Board Member
Age 72Since 2018-09-30
LL
Louis Lavigne→
Chairman
Age 77Since 2023-06-12
KY
Kristine Yaffe→
Director/Board Member
Age 63Since 2019-08-08
PH
Paula Hammond→
Director/Board Member
Age 62Since 2020-03-19
EG
Elizabeth Garofalo→
Director/Board Member
Age 68Since 2021-09-27
ES
Errol de Souza→
Director/Board Member
Age 72Since 2024-03-18
MA
Mark Altmeyer→
Director/Board Member
Age 65Since 2024-03-18
Shareholders5
| Name | Stake | Shares |
|---|---|---|
| TCG Crossover Management LLC | 9.007 % | 10,000,000 |
| TCG Crossover Management LLC | 9.007 % | 10,000,000 |
| BlackRock Advisors LLC | 6.699 % | 7,437,309 |
| Arnon Rosenthal | 5.672 % | 6,297,581 |
| Polaris Growth Management LLC | 4.372 % | 4,853,817 |
Catalog · 2026-07-09
Registry officers22
| Name | Role | Since | Shares |
|---|---|---|---|
| Louis Lavigne | Chairman | 2023-06-12 | - |
| Arnon Rosenthal | Director/Board Member | 2013-04-30 | - |
| Elizabeth Garofalo | Director/Board Member | 2021-09-27 | - |
| Elizabeth Garofalo, M.D | Director or executive officer | 2021-09-01 | 143,884 |
| Elizabeth Garofalo, M.D | Director or executive officer | 2021-09-01 | 143,884 |
| Errol de Souza | Director/Board Member | 2024-03-18 | - |
| Errol De Souza, Ph.D | Director or executive officer | 2024-03-01 | 43,244 |
| Kristine Yaffe | Director/Board Member | 2019-08-08 | - |
Registry · as of 2026-07-09
Institutional (13F)
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Fund membership
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Street consensus
Consensus holdMean target 3.9Range 1–8Analysts 5
1Mean 3.98
- Buy 3
- Hold 2
- Sell 1
- Strong sell 1
Broker actions40 of 68
| Firm | Action | To | Target | Date |
|---|---|---|---|---|
| HC Wainwright & Co. | Maintained | Buy | 8 | 2026-10-15 |
| HC Wainwright & Co. | Maintained | Buy | 8 | 2026-10-14 |
| Morgan Stanley | Maintained | Underweight | 3 | 2026-10-06 |
| Cantor Fitzgerald | Upgrade | Overweight | — | 2026-04-15 |
| BTIG | Upgrade | Buy | 6 | 2026-03-10 |
| TD Cowen | Downgrade | Hold | — | 2025-10-22 |
| Cantor Fitzgerald | Downgrade | Neutral | — | 2025-10-22 |
| HC Wainwright & Co. | Maintained | Buy | 5 | 2025-10-22 |
| William Blair | Downgrade | Market Perform | — | 2025-10-22 |
| BTIG | Downgrade | Neutral | — | 2025-10-22 |
| BTIG | Reiterated | Buy | 5 | 2025-09-25 |
| Mizuho | Upgrade | Outperform | 3.5 | 2025-07-28 |
Firm rows and rating mix from Yahoo Finance; mean target is Yahoo’s aggregate until OpenFilings derives consensus from broker rows.