EDGAR Filing Documents for 0001564590-21-008422

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:

SEC Accession No. 0001564590-21-008422

Filing Date

2021-02-25

Accepted

2021-02-25 07:10:58

Documents

Period of Report

2020-12-31

Document Format Files

Seq	Description	Document	Type	Size
1	10-K	alt-10k_20201231.htm	10-K	3669187
2	EX-4.10	alt-ex410_6.htm	EX-4.10	84702
3	EX-10.15	alt-ex1015_726.htm	EX-10.15	54965
4	EX-10.22	alt-ex1022_727.htm	EX-10.22	189423
5	EX-21	alt-ex21_7.htm	EX-21	6154
6	EX-23.1	alt-ex231_10.htm	EX-23.1	10991
7	EX-31.1	alt-ex311_11.htm	EX-31.1	18840
8	EX-31.2	alt-ex312_9.htm	EX-31.2	18571
9	EX-32.1	alt-ex321_12.htm	EX-32.1	6070
10	EX-32.2	alt-ex322_8.htm	EX-32.2	6054
11	GRAPHIC	g54rt0cobvmf000001.jpg	GRAPHIC	6582
	Complete submission text file	0001564590-21-008422.txt		11902150

Data Files

Seq	Description	Document	Type	Size
12	XBRL INSTANCE DOCUMENT	alt-20201231.xml	EX-101.INS	2339421
13	XBRL TAXONOMY EXTENSION SCHEMA	alt-20201231.xsd	EX-101.SCH	79123
14	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE	alt-20201231_cal.xml	EX-101.CAL	73906
15	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE	alt-20201231_def.xml	EX-101.DEF	253038
16	XBRL TAXONOMY EXTENSION LABEL LINKBASE	alt-20201231_lab.xml	EX-101.LAB	619007
17	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE	alt-20201231_pre.xml	EX-101.PRE	491165

Mailing Address 910 CLOPPER ROAD SUITE 201S GAITHERSBURG MD 20878

Business Address 910 CLOPPER ROAD SUITE 201S GAITHERSBURG MD 20878 2406541450