Helen Kim
CIK 1422772 · View on SEC EDGAR ↗
Activist
First SEC filing: Jan. 14, 2026 · Latest: Jan. 14, 2026
On this page
Insider at
Insider transactions
2 buys (P)
0 sells (S)
Net:
$15,030,000
+ 17 non-open-market transactions below
Avg return of open purchases vs now:
37.2%
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
17 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 12, 2026 | AKTS | P | 22,545 | $18.00 | $405,810 | 157,387 Indirect | +16.72% | Acquired | 37.2% (price as of 2026-08-20) |
| Jan. 12, 2026 | AKTS | P | 812,455 | $18.00 | $14,624,190 | 5,671,825 Indirect | +16.72% | Acquired | 37.2% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 12, 2026 | AKTS | Series B Redeemable Convertible Preferred Stock | Common Stock (26,613) | — | — | 101,250 | Disposed |
| Jan. 12, 2026 | AKTS | Series B Redeemable Convertible Preferred Stock | Common Stock (959,086) | — | — | 3,648,750 | Disposed |
| Jan. 12, 2026 | AKTS | Series A Redeemable Convertible Preferred Stock | Common Stock (108,229) | — | — | 411,750 | Disposed |
| Jan. 12, 2026 | AKTS | Series A Redeemable Convertible Preferred Stock | Common Stock (3,900,284) | — | — | 14,838,250 | Disposed |
| May 14, 2025 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (20,183) | $6.88 | May 14, 2035 | 20,183 | Acquired |
| May 15, 2024 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (15,000) | $22.39 | May 15, 2034 | 15,000 | Acquired |
| May 17, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (15,000) | $76.00 | May 17, 2033 | 15,000 | Acquired |
| June 11, 2020 | ASMB | Stock Option (right to buy) | Common Stock (10,000) | $20.47 | June 11, 2030 | 10,000 | Acquired |
| June 4, 2020 | XCUR | Stock Option (right to buy) | Common Stock (21,693) | $2.79 | June 3, 2030 | 21,693 | Acquired |
| May 17, 2019 | ASMB | Stock Option (right to buy) | Common Stock (10,000) | $15.22 | May 17, 2029 | 10,000 | Acquired |
| May 30, 2018 | ASMB | Stock Option (right to buy) | Common Stock (7,500) | $42.09 | May 30, 2028 | 7,500 | Acquired |
| March 8, 2018 | ASMB | Stock Option (right to buy) | Common Stock (20,000) | $57.53 | March 8, 2028 | 20,000 | Acquired |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | Jan. 4, 2027 | 24,824 | Acquired |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | April 28, 2025 | 24,824 | Acquired |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | Oct. 2, 2024 | 49,649 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 8, 2026 | AKTS | Series A Redeemable Convertible Preferred Stock→ Common Stock (3,900,284) | 3,900,284 | Indirect |
| Jan. 8, 2026 | AKTS | Series A Redeemable Convertible Preferred Stock→ Common Stock (108,229) | 108,229 | Indirect |
| Jan. 8, 2026 | AKTS | Series B Redeemable Convertible Preferred Stock→ Common Stock (959,086) | 959,086 | Indirect |
| Jan. 8, 2026 | AKTS | Series B Redeemable Convertible Preferred Stock→ Common Stock (26,613) | 26,613 | Indirect |
| Jan. 8, 2026 | AKTS | Stock Option (Right to Buy)→ Common Stock (37,866) | 37,866 | Direct |