SILVER WARRANTS

CUSIP: SLVRWARR1 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q3 2021
Shares 1,775 Value ($000) $195,436 Avg Close — Range —
Q2 2021
Shares 3,526 Value ($000) $461,289 Avg Close — Range —
Q1 2021
Shares 2,393 Value ($000) $293,346 Avg Close — Range —
Q4 2020
Shares 360 Value ($000) $47,398 Avg Close — Range —