NTHI - Insider purchases

CEO, President Heshmatpour Amir F bought $174,795 worth of shares (50,000 units at $3.50), increasing direct ownership by 2% to 3,183,000 units (SEC Form 4)

CEO Chen Thomas C bought $40,000 worth of shares (10,798 units at $3.70) (SEC Form 4)

CFO Garnett Keithly bought $1,001 worth of shares (257 units at $3.89), increasing direct ownership by 0.11% to 242,357 units (SEC Form 4)

CEO, President Heshmatpour Amir F bought $135,620 worth of shares (37,000 units at $3.67), increasing direct ownership by 1% to 3,133,000 units (SEC Form 4)

CEO Chen Thomas C bought $69,998 worth of shares (12,757 units at $5.49) (SEC Form 4)

Amendment: Chief Scientific Officer Chen Thomas C bought $192,899 worth of shares (47,207 units at $4.09), increasing direct ownership by 7% to 583,531 units (SEC Form 4)

CEO Chen Thomas C bought $140,000 worth of shares (36,259 units at $3.86), increasing direct ownership by 7% to 583,531 units (SEC Form 4)

CEO, President Heshmatpour Amir F bought $49,860 worth of shares (9,000 units at $5.54), increasing direct ownership by 0.29% to 3,096,000 units (SEC Form 4)

CEO, President Heshmatpour Amir F bought $58,580 worth of shares (15,000 units at $3.91), increasing direct ownership by 0.49% to 3,087,000 units (SEC Form 4)

President Heshmatpour Amir F bought $41,592 worth of shares (10,000 units at $4.16), increasing direct ownership by 0.33% to 3,072,000 units (SEC Form 4)

President Heshmatpour Amir F bought $45,180 worth of shares (10,000 units at $4.52), increasing direct ownership by 0.33% to 3,062,000 units (SEC Form 4)

Chief Clinical Officer Neman-Ebrahim Yousha bought $2,440 worth of shares (500 units at $4.88), increasing direct ownership by 0.37% to 134,760 units (SEC Form 4)

CFO Garnett Keithly bought $1,614 worth of shares (300 units at $5.38), increasing direct ownership by 0.12% to 241,200 units (SEC Form 4)

President Heshmatpour Amir F bought $49,000 worth of shares (10,000 units at $4.90), increasing direct ownership by 0.33% to 3,052,000 units (SEC Form 4)

President Heshmatpour Amir F bought $119,600 worth of CommonStock (20,000 units at $5.98) and bought $65,060 worth of shares (10,000 units at $6.51), increasing direct ownership by 1% to 2,992,000 units (SEC Form 4)

Chief Clinical Officer Neman-Ebrahim Yousha bought $7,359 worth of shares (1,100 units at $6.69), increasing direct ownership by 0.83% to 134,260 units (SEC Form 4)

President Heshmatpour Amir F bought $14,785 worth of CommonStock (2,000 units at $7.39), increasing direct ownership by 0.11% to 1,762,000 units (SEC Form 4)

CEO Chen Thomas C bought $40,002 worth of shares (5,468 units at $7.32), increasing direct ownership by 1% to 551,668 units (SEC Form 4)

CFO Garnett Keithly bought $4,921 worth of shares (675 units at $7.29), increasing direct ownership by 0.28% to 240,900 units (SEC Form 4)

CFO Garnett Keithly bought $976 worth of shares (135 units at $7.23), increasing direct ownership by 0.06% to 240,225 units (SEC Form 4)

Amendment: CFO Garnett Keithly bought $631 worth of shares (90 units at $7.01), increasing direct ownership by 0.04% to 240,090 units (SEC Form 4)

Director Delshad Jim bought $37,258 worth of shares (5,100 units at $7.31), increasing direct ownership by 10% to 55,310 units (SEC Form 4)

CFO Garnett Keithly decreased direct ownership by 0.03% to 330,000 units (SEC Form 4)

CEO Chen Thomas C bought $2,800 worth of shares (400 units at $7.00), increasing direct ownership by 0.07% to 546,200 units (SEC Form 4)

President Heshmatpour Amir F bought $47,294 worth of shares (6,490 units at $7.29) and bought $59,221 worth of CommonStock (3,510 units at $16.87), increasing direct ownership by 0.57% to 1,760,000 units (SEC Form 4)