SYCAMORE NETWORKS, INC

CUSIP: 871206405 Class: COMMON STOCK

NORGES BANK's Holding History (CIK: 0001374170)

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

Q1 2013
Shares 148,743 Value ($000) $55 Avg Close — Range —
Q3 2012
Shares 148,743 Value ($000) $2,290 Avg Close — Range —
Q2 2012
Shares 148,743 Value ($000) $2,120 Avg Close — Range —