STI insider transactions

Director Davis John Linzy returned $140,002 worth of shares to the company (19,915 units at $7.03), decreasing direct ownership by 38% to 32,938 units (SEC Form 4)

Chief Financial Officer Prantsevich Vlad acquired 2,425 shares and bought $7,344 worth of shares (1,030 units at $7.13) (SEC Form 4)

Chief Executive Officer Winters Jaymes bought $6,996 worth of shares (984 units at $7.11) and acquired 3,725 shares (SEC Form 4)

Director Tjon Karin-Joyce bought $36,000 worth of shares (5,000 units at $7.20), increasing direct ownership by 9% to 58,053 units (SEC Form 4)

Director Schwartz Mark N was granted 4,296 shares (SEC Form 4)

Director Davis John Linzy was granted 12,853 shares, increasing direct ownership by 32% to 52,853 units (SEC Form 4)

SEC Form 3 filed by new insider Schwartz Mark N

SEC Form 3 filed by new insider Robinson Dante W

Director Tjon Karin-Joyce was granted 12,853 shares and acquired 200 shares, increasing direct ownership by 33% to 53,053 units (SEC Form 4)

Director Robinson Dante W was granted 4,296 shares (SEC Form 4)

Director Ellen Kimi L was granted 4,296 shares (SEC Form 4)

SEC Form 3 filed by new insider Ellen Kimi L

Large owner Ikezi Henry bought $643,965 worth of shares (26,000 units at $24.77), sold $12,212,372 worth of shares (394,888 units at $30.93), disposed of 214,037 shares, acquired 214,037 shares and exercised 214,037 shares at a strike of $3.10 (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $3,691,205 worth of shares (175,000 units at $21.09), decreasing direct ownership by 10% to 1,569,695 units (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $10,375 worth of shares (1,318 units at $7.87), decreasing direct ownership by 0.08% to 1,744,695 units (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $105,509 worth of shares (10,000 units at $10.55), decreasing direct ownership by 0.57% to 1,746,013 units (SEC Form 4)

New insider Ikezi Henry claimed ownership of 3,447,957 shares (SEC Form 3)

Director Tjon Karin-Joyce was granted 40,000 shares (SEC Form 4)

Large owner Global Graphene Group, Inc. acquired $2,286,000 worth of shares (450,000 units at $5.08), increasing direct ownership by 34% to 1,756,013 units (SEC Form 4)

Director Davis John Linzy was granted 40,000 shares (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $183,277 worth of shares (34,000 units at $5.39), decreasing direct ownership by 3% to 1,306,013 units (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $17,061 worth of shares (5,018 units at $3.40), decreasing direct ownership by 0.37% to 1,340,013 units (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $2,619 worth of shares (746 units at $3.51), increasing direct ownership by 0.34% to 1,345,031 units (SEC Form 4)

Large owner Global Graphene Group, Inc. sold $53,217 worth of shares (500,000 units at $0.11), decreasing direct ownership by 0.73% to 67,555,000 units (SEC Form 4)