Hera K Siu
CIK 1796462 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 13, 2019 · Latest: Dec. 13, 2019
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 18 non-open-market transactions below
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 14, 2025 | GT | A | 9,524 | $9.45 | $90,002 | 91,432 Direct | +11.63% | Acquired | -37.8% (price as of 2026-08-20) |
| April 14, 2025 | GT | A | 9,524 | $9.45 | $90,002 | 81,908 Direct | +13.16% | Acquired | -37.8% (price as of 2026-08-20) |
| April 8, 2024 | GT | A | 12,186 | $13.13 | $160,002 | 72,384 Direct | +20.24% | Acquired | -55.2% (price as of 2026-08-20) |
| April 10, 2023 | GT | A | 15,139 | $10.83 | $163,955 | 60,198 Direct | +33.60% | Acquired | -45.7% (price as of 2026-08-20) |
| April 3, 2023 | GT | A | 3,663 | $10.92 | $40,000 | 45,059 Direct | +8.85% | Acquired | -46.2% (price as of 2026-08-20) |
| Jan. 3, 2023 | GT | A | 3,925 | $10.19 | $39,996 | 41,396 Direct | +10.47% | Acquired | -42.3% (price as of 2026-08-20) |
| Oct. 3, 2022 | GT | A | 3,756 | $10.65 | $40,001 | 37,470 Direct | +11.14% | Acquired | -44.8% (price as of 2026-08-20) |
| July 1, 2022 | GT | A | 3,700 | $10.81 | $39,997 | 33,715 Direct | +12.33% | Acquired | -45.6% (price as of 2026-08-20) |
| April 1, 2022 | GT | A | 2,817 | $14.20 | $40,001 | 30,014 Direct | +10.36% | Acquired | -58.6% (price as of 2026-08-20) |
| Jan. 3, 2022 | GT | A | 1,837 | $21.78 | $40,010 | 27,197 Direct | +7.24% | Acquired | -73.0% (price as of 2026-08-20) |
| Oct. 1, 2021 | GT | A | 1,949 | $18.60 | $36,251 | 25,361 Direct | +8.32% | Acquired | -68.4% (price as of 2026-08-20) |
| July 1, 2021 | GT | A | 2,082 | $17.41 | $36,248 | 23,412 Direct | +9.76% | Acquired | -66.2% (price as of 2026-08-20) |
| April 1, 2021 | GT | A | 2,088 | $17.36 | $36,248 | 21,330 Direct | +10.85% | Acquired | -66.1% (price as of 2026-08-20) |
| Jan. 4, 2021 | GT | A | 3,564 | $10.17 | $36,246 | 19,242 Direct | +22.73% | Acquired | -42.2% (price as of 2026-08-20) |
| Oct. 1, 2020 | GT | A | 4,357 | $8.32 | $36,250 | 15,677 Direct | +38.49% | Acquired | -29.3% (price as of 2026-08-20) |
| July 1, 2020 | GT | A | 4,220 | $8.59 | $36,250 | 11,320 Direct | +59.44% | Acquired | -31.5% (price as of 2026-08-20) |
| April 1, 2020 | GT | A | 6,371 | $5.69 | $36,251 | 7,100 Direct | +873.94% | Acquired | 3.3% (price as of 2026-08-20) |
| Jan. 2, 2020 | GT | A | 717 | $15.38 | $11,027 | 717 Direct | — | Acquired | -61.8% (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 |
|---|---|---|---|---|---|---|---|
| April 14, 2025 | GT | Restricted Stock Units [F4] | Common Stock (9,524) | — | — | 9,524 | Acquired |
| April 14, 2025 | GT | Restricted Stock Units [F1] | Common Stock (9,524) | — | — | 9,524 | Acquired |
| April 8, 2024 | GT | Restricted Stock Units [F1] | Common Stock (12,186) | — | — | 12,186 | Acquired |
| April 10, 2023 | GT | Restricted Stock Units [F1] | Common Stock (15,139) | — | — | 15,139 | Acquired |
| April 3, 2023 | GT | Restricted Stock Units [F1] | Common Stock (3,663) | — | — | 3,663 | Acquired |
| Jan. 3, 2023 | GT | Restricted Stock Units [F1] | Common Stock (3,925) | — | — | 3,925 | Acquired |
| Oct. 3, 2022 | GT | Restricted Stock Units [F1] | Common Stock (3,756) | — | — | 3,756 | Acquired |
| July 1, 2022 | GT | Restricted Stock Units [F1] | Common Stock (3,700) | — | — | 3,700 | Acquired |
| April 1, 2022 | GT | Restricted Stock Units [F1] | Common Stock (2,817) | — | — | 2,817 | Acquired |
| Jan. 3, 2022 | GT | Restricted Stock Units [F1] | Common Stock (1,837) | — | — | 1,837 | Acquired |
| Oct. 1, 2021 | GT | Restricted Stock Units [F1] | Common Stock (1,949) | — | — | 1,949 | Acquired |
| July 1, 2021 | GT | Restricted Stock Units [F1] | Common Stock (2,082) | — | — | 2,082 | Acquired |
| April 1, 2021 | GT | Restricted Stock Units [F1] | Common Stock (2,088) | — | — | 2,088 | Acquired |
| Jan. 4, 2021 | GT | Restricted Stock Units [F1] | Common Stock (3,564) | — | — | 3,564 | Acquired |
| Oct. 1, 2020 | GT | Restricted Stock Units [F1] | Common Stock (4,357) | — | — | 4,357 | Acquired |
| July 1, 2020 | GT | Restricted Stock Units [F1] | Common Stock (4,220) | — | — | 4,220 | Acquired |
| April 1, 2020 | GT | Restricted Stock Units [F1] | Common Stock (6,371) | — | — | 6,371 | Acquired |
| Jan. 2, 2020 | GT | Restricted Stock Units [F1] | Common Stock (717) | — | — | 717 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 13, 2019 | GT | Common Stock | 0 | Direct |