| Sep 18, 2026 | KLTR | Open-market saleCode S · direct | 4,100 | $1.41 | $6K@ $1.41 | 1,981,537 | Form 4 |
| Sep 17, 2026 | KLTR | Open-market saleCode S · direct | 6,488 | $1.42 | $9K@ $1.42 | 1,985,637 | Form 4 |
| Sep 16, 2026 | KLTR | Open-market saleCode S · direct | 7,116 | $1.42 | $10K@ $1.42 | 1,992,125 | Form 4 |
| Sep 15, 2026 | KLTR | Open-market saleCode S · direct | 6,113 | $1.41 | $9K@ $1.41 | 1,999,241 | Form 4 |
| Sep 14, 2026 | KLTR | Open-market saleCode S · direct | 5,149 | $1.43 | $7K@ $1.43 | 2,005,354 | Form 4 |
| Sep 11, 2026 | KLTR | Open-market saleCode S · direct | 5,656 | $1.42 | $8K@ $1.42 | 2,010,503 | Form 4 |
| Sep 10, 2026 | KLTR | Open-market saleCode S · direct | 3,763 | $1.45 | $5K@ $1.45 | 2,016,159 | Form 4 |
| Sep 9, 2026 | KLTR | Open-market saleCode S · direct | 10,078 | $1.48 | $15K@ $1.48 | 2,019,922 | Form 4 |
| Sep 8, 2026 | KLTR | Open-market saleCode S · direct | 12,341 | $1.49 | $18K@ $1.49 | 2,030,000 | Form 4 |
| Sep 4, 2026 | KLTR | Open-market saleCode S · direct | 8,176 | $1.51 | $12K@ $1.51 | 2,042,341 | Form 4 |
| Sep 3, 2026 | KLTR | Open-market saleCode S · direct | 9,866 | $1.53 | $15K@ $1.53 | 2,050,517 | Form 4 |
| Sep 2, 2026 | KLTR | Open-market saleCode S · direct | 7,816 | $1.51 | $12K@ $1.51 | 2,060,383 | Form 4 |
| Sep 1, 2026 | KLTR | Open-market saleCode S · direct | 4,328 | $1.54 | $7K@ $1.54 | 2,068,199 | Form 4 |
| Aug 5, 2026 | KLTR | Open-market saleCode S · direct | 83,995 | $2.01 | $169K@ $2.01 | 2,072,527 | Form 4 |
| Jul 22, 2026 | KLTR | Open-market saleCode S · direct | 6,301 | $1.42 | $9K@ $1.42 | 2,156,522 | Form 4 |
| Jul 21, 2026 | KLTR | Open-market saleCode S · direct | 3,480 | $1.41 | $5K@ $1.41 | 2,162,823 | Form 4 |
| Jul 20, 2026 | KLTR | Open-market saleCode S · direct | 2,777 | $1.40 | $4K@ $1.40 | 2,166,303 | Form 4 |
| Jun 18, 2026 | KLTR | Open-market saleCode S · direct | 10,217 | $1.40 | $14K@ $1.40 | 2,169,080 | Form 4 |
| Jun 17, 2026 | KLTR | Open-market saleCode S · direct | 4,448 | $1.43 | $6K@ $1.43 | 2,179,297 | Form 4 |
| Jun 16, 2026 | KLTR | Open-market saleCode S · direct | 12,073 | $1.48 | $18K@ $1.48 | 2,183,745 | Form 4 |
| Jun 15, 2026 | KLTR | Open-market saleCode S · direct | 19,456 | $1.48 | $29K@ $1.48 | 2,195,818 | Form 4 |
| Jun 12, 2026 | KLTR | Open-market saleCode S · direct | 13,242 | $1.41 | $19K@ $1.41 | 2,215,274 | Form 4 |
| Jun 11, 2026 | KLTR | Open-market saleCode S · direct | 4,219 | $1.41 | $6K@ $1.41 | 2,228,516 | Form 4 |
| Jun 10, 2026 | KLTR | Open-market saleCode S · direct | 8,344 | $1.41 | $12K@ $1.41 | 2,232,735 | Form 4 |
| Jun 9, 2026 | KLTR | Open-market saleCode S · direct | 6,975 | $1.41 | $10K@ $1.41 | 2,241,079 | Form 4 |
| Jun 8, 2026 | KLTR | Open-market saleCode S · direct | 8,254 | $1.41 | $12K@ $1.41 | 2,248,054 | Form 4 |
| Jun 5, 2026 | KLTR | Open-market saleCode S · direct | 2,765 | $1.43 | $4K@ $1.43 | 2,256,308 | Form 4 |
| Jun 4, 2026 | KLTR | Open-market saleCode S · direct | 16,218 | $1.44 | $23K@ $1.44 | 2,259,073 | Form 4 |
| Jun 3, 2026 | KLTR | Open-market saleCode S · direct | 435 | $1.49 | $647@ $1.49 | 2,275,291 | Form 4 |
| Jun 2, 2026 | KLTR | Open-market saleCode S · direct | 7,412 | $1.53 | $11K@ $1.53 | 2,275,726 | Form 4 |
| Jun 1, 2026 | KLTR | Open-market saleCode S · direct | 21,884 | $1.57 | $34K@ $1.57 | 2,283,138 | Form 4 |
| May 5, 2026 | KLTR | Open-market saleCode S · direct | 869 | $1.46 | $1K@ $1.46 | 2,305,022 | Form 4 |
| May 4, 2026 | KLTR | Open-market saleCode S · direct | 17,671 | $1.47 | $26K@ $1.47 | 2,305,891 | Form 4 |
| May 1, 2026 | KLTR | Open-market saleCode S · direct | 14,861 | $1.44 | $21K@ $1.44 | 2,323,562 | Form 4 |
| Apr 30, 2026 | KLTR | Open-market saleCode S · direct | 2,672 | $1.40 | $4K@ $1.40 | 2,338,423 | Form 4 |
| Apr 29, 2026 | KLTR | Open-market saleCode S · direct | 11,086 | $1.45 | $16K@ $1.45 | 2,341,095 | Form 4 |
| Apr 28, 2026 | KLTR | Open-market saleCode S · direct | 32,003 | $1.46 | $47K@ $1.46 | 2,352,181 | Form 4 |
| Apr 27, 2026 | KLTR | Open-market saleCode S · direct | 70,838 | — | — | 2,384,184 | Form 4 |
| Jan 19, 2026 | KLTR | Grant or awardCode A · direct | 302,632 | — | — | 2,455,022 | Form 4 |