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Filing Details

Accession Number:: 0000947871-19-000992
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2019-12-26 16:54:12
Reporting Period:: 2019-12-20

Accepted Time:: 2019-12-26 16:54:12
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1653087	Alector Inc.	ALEC	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1055951	Orbimed Advisors Llc	601 Lexington Avenue 54Th Floor New York NY 10022-4629	No	No	Yes	No
1157524	Orbimed Capital Llc	601 Lexington Avenue 54Th Floor New York NY 10022	No	No	Yes	No
1502240	Orbimed Capital Gp Iv Llc	601 Lexington Avenue, 54Th Floor New York NY 10022	No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2019-12-20	230,721	$19.66	8,398,697	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-20	73,879	$19.66	2,688,932	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-20	37,900	$19.66	59,800	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-23	63,535	$19.82	8,335,162	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-23	20,350	$19.82	2,668,582	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-23	10,400	$19.82	49,400	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-24	48,324	$19.59	8,286,838	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-24	15,476	$19.59	2,653,106	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-24	8,000	$19.59	41,400	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-26	7,275	$18.60	8,279,563	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-26	2,325	$18.60	2,650,781	No	4	S	Indirect	See Footnotes
Common Stock	Disposition	2019-12-26	1,200	$18.60	40,200	No	4	S	Indirect	See Footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes

Footnotes

These shares of the Issuer's common stock ("Shares") were sold in a block order at a price of $19.66.
These shares of the Issuer's common stock ("Shares") were sold in a block order at a price of $19.82.
These shares of the Issuer's common stock ("Shares") were sold in a block order at a price of $19.59.
These shares of the Issuer's common stock ("Shares") were sold in a block order at a price of $18.60.
The Shares are held of record by OrbiMed Private Investments IV-AL, LP ("OrbiMed IV-AL"). OrbiMed Capital GP IV LLC ("OrbiMed GP"), is the general partner of OrbiMed IV-AL. OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered adviser under the Investment Advisers Act of 1940, as amended (the "Investment Advisers Act"), is the managing member of OrbiMed GP. By virtue of such relationships, OrbiMed GP and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OrbiMed IV-AL and as a result may be deemed to have beneficial ownership over such securities.
Each of OrbiMed GP, OrbiMed Capital LLC ("OrbiMed Capital") and OrbiMed Advisors disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report on Form 4 shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.
The Shares are held of record by OrbiMed Private Investments IV-AL (Feeder), LP ("OrbiMed IV-AL (Feeder)"). OrbiMed GP is the general partner of OrbiMed IV-AL (Feeder). OrbiMed Advisors is the managing member of OrbiMed GP. By virtue of such relationships, OrbiMed GP and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OrbiMed IV-AL (Feeder) and as a result may be deemed to have beneficial ownership over such securities.
The Shares are held of record by OrbiMed Partners Master Fund Limited ("OPM"). OrbiMed Capital, a registered investment adviser under the Investment Advisers Act, acts as the investment advisor to OPM. By virtue of such relationships, OrbiMed Capital may be deemed to have voting and investment power over the securities held by OPM and as a result may be deemed to have beneficial ownership over such securities.