RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

MASSACHUSETTS INSTITUTE OF TECHNOLOGY's Holding History (CIK: 0000351051)

Note: Option positions (PUT/CALL) are excluded.

Q4 2020

Shares 139,568 Value ($000) $916 Avg Close $5.28 Range $3.62 - $7.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	139,568	$916	$5.28	$3.62 - $7.49