ALEC Alector, Inc.: institutional ownership and insider trading
147 funds reported holding $198M of Alector, Inc. in their latest 13F filings; in Q2 2026 funds net bought $7.09M, with 13 new positions and 8 funds selling out; over the last 12 months insiders bought $0 and sold $1.02M on the open market; over its last four quarters it reported revenue of $13.8M and net income of −$118M.
ALEC revenue and earnings
- Quarter ended Jun 30, 2026: revenue $3.32M, net income −$23.0M, EPS -0.21
- Quarter ended Mar 31, 2026: revenue $1.05M, net income −$22.9M, EPS -0.21
- Quarter ended Dec 31, 2025: revenue $6.21M, net income −$37.3M, EPS -0.34
- Quarter ended Sep 30, 2025: revenue $3.26M, net income −$34.7M, EPS -0.34
Famous investors holding ALEC
- D. E. Shaw (D. E. Shaw & Co.): $5.95M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $4.00M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $2.10M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.88M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.01M, 0.0% of the portfolio
Largest institutional holders of ALEC
- TCG Crossover Management, LLC — $20.1M
- BlackRock, Inc. (BLK) — $15.8M
- VANGUARD GROUP INC — $10.8M
- ACADIAN ASSET MANAGEMENT LLC — $8.86M
- Nantahala Capital Management, LLC — $8.68M
- VANGUARD CAPITAL MANAGEMENT LLC — $8.06M
- Kynam Capital Management, LP — $7.66M
- BALYASNY ASSET MANAGEMENT L.P. — $7.54M
- Merck & Co., Inc. (MRK) — $7.13M
- 683 Capital Management, LLC — $6.43M
Recent ALEC insider trades
- Sep 4, 2026: Wong-Sarad Grace sold 9,446 shares ($24.7K)
- Sep 3, 2026: Berkley Neil Lindsay sold 29,251 shares ($77.8K)
- Sep 3, 2026: Rosenthal Arnon sold 72,606 shares ($193K)
- Jun 3, 2026: Wong-Sarad Grace sold 9,184 shares ($17.8K)
5%+ owners
- Deep Track Capital, LP: 8.6% (Schedule 13G, filed Oct 23, 2026)
- BVF PARTNERS L P/IL: 8.4% (Schedule 13G, filed Sep 18, 2026)
- BlackRock, Inc.: 5.2% (Schedule 13G, filed Apr 27, 2026)
Who owns the most ALEC stock?
The largest institutional holders of Alector, Inc. in the latest 13F filings are TCG Crossover Management, LLC ($20.1M), BlackRock, Inc. (BLK) ($15.8M), VANGUARD GROUP INC ($10.8M).
Are insiders buying or selling ALEC?
Over the last 12 months insiders bought $0 and sold $1.02M of Alector, Inc. stock on the open market (SEC Form 4).
Which famous investors own ALEC?
D. E. Shaw, Izzy Englander, Two Sigma, Renaissance Technologies, Ken Griffin.
What was ALEC's revenue last quarter?
Alector, Inc. reported revenue of $3.32M for the quarter ended June 30, 2026, with net income of −$23.0M.
Which ETFs hold ALEC?
1 ETFs and mutual funds hold it among their top 100 positions, including IBRN.