SCHEDULE 13G Filed 2026-10-23 Event — SEC 0001172661-26-004680 →

Deep Track Capital, LP → Alector, Inc. ALEC

Stake: — Shares: — Class: Common

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 31/100

Passive Schedule 13G filer baseline
Material 8-K governance/transaction event (Item 5.02 / 1.01 / 2.01) within ±30d
Held by 1 tracked 13F institutional manager
Elevated short days-to-cover (5.7 DTC)

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

9 13D/G filings on this issuer

8 other filings besides this one

Filer Track Record

7 filings by this filer

6 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 5.73

6,147,032 shares short · +0.7% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $36K

Point72 Asset Mgmt

Other 13D/G Filings on Alector, Inc.

Filed	Form	Filer	Stake	Shares
2026-09-18	SCHEDULE 13G	BIOTECHNOLOGY VALUE FUND L P	—	—	view →
2020-07-10	SC	ORBIMED ADVISORS LLC	—	—	view →
2020-06-04	SC	ORBIMED ADVISORS LLC	—	—	view →
2020-03-04	SC	ORBIMED ADVISORS LLC	—	—	view →
2020-02-05	SC	ORBIMED ADVISORS LLC	—	—	view →
2020-01-13	SC	ORBIMED ADVISORS LLC	—	—	view →
2019-12-19	SC	ORBIMED ADVISORS LLC	—	—	view →
2019-08-12	SC	ORBIMED ADVISORS LLC	—	—	view →

Other Filings by Deep Track Capital, LP

Filed	Form	Issuer	Stake	Shares
2026-10-23	SCHEDULE 13G	TCGX Acquisition Corp. II	—	—	view →
2026-10-21	SCHEDULE 13G	Frazier Life Sciences Acquisition Corp. II	—	—	view →
2026-09-02	SCHEDULE 13G	JATT III Acquisition Corp	—	—	view →
2026-06-17	SCHEDULE 13G	Shattuck Labs, Inc. STTK	—	—	view →
2026-05-29	SCHEDULE 13G	Avalo Therapeutics, Inc. AVTX	—	—	view →
2025-02-19	SCHEDULE	DYNAVAX TECHNOLOGIES CORP	13.50%	17,791,486	view →

Want this depth on every filing the moment it hits SEC EDGAR?

Free $0 (48h-delayed alerts) · Individual $49/mo (real-time) · Team & API $199/mo · Enterprise.

See pricing →