Acacia Communications, Inc.

GAMCO INVESTORS, INC. ET AL ACIA

Report date

12/31/2020

Quarter

2020 Q4

Filed

2/5/2021

Shares

7,466

Value ($000)

545

Weight

0.0%

2019 Q4 - 2020 Q4 (5 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2020 Q4	2/5/2021	545	0.0%	7,466	12/31/2020
2020 Q3	11/6/2020	764	0.0%	11,332	9/30/2020
2020 Q2	8/13/2020	2,268	0.0%	33,761	6/30/2020
2020 Q1	5/14/2020	2,433	0.0%	36,209	3/31/2020
2019 Q4	2/14/2020	2,789	0.0%	41,129	12/31/2019