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DEERFIELD MANAGEMENT COMPANY, L.P.

Position in ALEC — Alector, Inc.

CIK 1009258 NEW YORK, NY

Position in ALEC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$2,268,662
+$622,563 QoQ
Shares Held
1,055,192
0.0% QoQ
Ownership
0.950%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ALEC Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

DEERFIELD MANAGEMENT COMPANY, L.P. holds $5,090,522,306 across 44 Biotechnology names. ALEC ranks #42 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALEC

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,268,662 1,055,192
2025-12-31 $1,646,099 1,055,192
2025-09-30 $3,123,368 1,055,192
2025-06-30 $1,477,268 1,055,192
2025-03-31 $1,297,886 1,055,192
2024-12-31 $2,016,558 1,066,962
2024-09-30 $4,917,194 1,055,192
2024-06-30 $5,213,400 1,148,326
2024-03-31 $6,458,526 1,072,845
2023-12-31 $8,521,123 1,067,810
2023-09-30 $6,837,644 1,055,192
2023-06-30 $6,341,703 1,055,192
2023-03-31 $6,531,638 1,055,192
2022-12-31 $9,739,422 1,055,192
2022-09-30 $9,982,116 1,055,192
2022-06-30 $10,720,750 1,055,192
2022-03-31 $15,036,486 1,055,192
2021-12-31 $21,789,714 1,055,192
2021-09-30 $24,079,481 1,055,192
2021-06-30 $21,979,649 1,055,192
2021-03-31 $21,251,566 1,055,192
2020-12-31 $15,965,054 1,055,192
2020-09-30 $15,401,938 1,461,978
2020-06-30 $40,985,806 1,676,997
2020-03-31 $41,961,997 1,738,997