As of September 05, 2026, the three largest insider holders of KLAR are Sebastian Siemiatkowski (Chief Executive Officer, 25.34Mn shares), David Sykes (Chief Commercial Officer, 181.40K shares), David Fock (Chief Product Design Officer, 176.98K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Sebastian Siemiatkowski | Chief Executive Officer | 0 | 25,344,322 | 25,344,322 | 97.8% | 28 Aug, 2026 |
| 2 | David Sykes | Chief Commercial Officer | 181,400 | 0 | 181,400 | 0.7% | 01 Jul, 2026 |
| 3 | David Fock | Chief Product Design Officer | 176,977 | 0 | 176,977 | 0.7% | 30 Jun, 2026 |
| 4 | Niclas Neglen | Chief Financial Officer | 86,673 | 0 | 86,673 | 0.3% | 02 Jul, 2026 |
| 5 | Camilla Giesecke | Chief Operating Officer | 50,485 | 0 | 50,485 | 0.2% | 01 Jul, 2026 |
| 6 | David Sandstrom | Chief Marketing Officer | 36,120 | 0 | 36,120 | 0.1% | 01 Jul, 2026 |
| 7 | Yaron Shaer | Chief Technology Officer | 36,107 | 0 | 36,107 | 0.1% | 01 Jul, 2026 |
| 8 | Anthony Greenway | Chief Accounting Officer | 9,375 | 0 | 9,375 | 0.0% | 01 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 26 Aug, 2026 | Sebastian Siemiatkowski | Chief Executive Officer | Acquired P | 692,506 | $14.37 | $9.95Mn | 25,344,322 | Indirect |
| 06 May, 2026 | Niclas Neglen | Chief Financial Officer | Acquired M | 127 | — | — | 70,729 | Direct |
| 30 Jun, 2026 | Niclas Neglen | Chief Financial Officer | Acquired A | 15,944 | — | — | 86,673 | Direct |
| 06 May, 2026 | David Sandstrom | Chief Marketing Officer | Acquired M | 61 | — | — | 22,465 | Direct |
| 06 May, 2026 | Yaron Shaer | Chief Technology Officer | Acquired M | 48 | — | — | 22,452 | Direct |
| 06 May, 2026 | Camilla Giesecke | Chief Operating Officer | Acquired M | 41 | — | — | 50,485 | Direct |
| 06 May, 2026 | David Sykes | Chief Commercial Officer | Acquired M | 238 | — | — | 163,457 | Direct |
| 06 May, 2026 | Anthony Greenway | Chief Accounting Officer | Acquired M | 526 | — | — | 8,299 | Direct |
| 01 Jun, 2026 | Camilla Giesecke | Chief Operating Officer | Acquired A | 84,034 | — | — | 1,949,033 | Direct |
| 30 Jun, 2026 | Anthony Greenway | Chief Accounting Officer | Acquired A | 1,076 | — | — | 9,375 | Direct |
| 30 Jun, 2026 | David Sykes | Chief Commercial Officer | Acquired A | 17,943 | — | — | 181,400 | Direct |
| 30 Jun, 2026 | Yaron Shaer | Chief Technology Officer | Acquired A | 13,655 | — | — | 36,107 | Direct |
| 30 Jun, 2026 | David Sandstrom | Chief Marketing Officer | Acquired A | 13,655 | — | — | 36,120 | Direct |
| 06 May, 2026 | David Fock | Chief Product Design Officer | Acquired M | 69 | — | — | 176,977 | Direct |
| 01 Jun, 2026 | Sebastian Siemiatkowski | Chief Executive Officer | Acquired A | 1,166,563 | — | — | 23,242,172 | Direct |
| 01 Jun, 2026 | David Fock | Chief Product Design Officer | Acquired A | 84,034 | — | — | 1,949,033 | Direct |
| 02 Apr, 2026 | David Sandstrom | Chief Marketing Officer | Acquired A | 21,289 | — | — | 177,971 | Direct |
| 31 Mar, 2026 | Anthony Greenway | Chief Accounting Officer | Acquired A | 1,654 | — | — | 7,240 | Direct |
| 02 Apr, 2026 | Yaron Shaer | Chief Technology Officer | Acquired A | 21,289 | — | — | 22,312 | Direct |
| 13 Apr, 2026 | Camilla Giesecke | Chief Operating Officer | Acquired M | 89 | — | — | 50,444 | Direct |