James Fu Bin Lu
CIK 1937262 · View on SEC EDGAR ↗
Insider
Activist
First SEC filing: Nov. 22, 2022 · Latest: Nov. 26, 2025
On this page
Insider at
Insider transactions
0 buys (P)
24 sells (S)
Net:
$-66,796,128
+ 4 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
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 6, 2026 | GRND | S | 475,000 | $10.01 | $4,754,750 | 18,432,101 Indirect | -2.51% | Disposed | 58.3% (price as of 2026-08-19) |
| Feb. 5, 2026 | GRND | S | 600,000 | $10.07 | $6,042,000 | 18,907,101 Indirect | -3.08% | Disposed | 57.4% (price as of 2026-08-19) |
| Feb. 4, 2026 | GRND | S | 375,000 | $10.13 | $3,798,750 | 19,507,101 Indirect | -1.89% | Disposed | 56.5% (price as of 2026-08-19) |
| Feb. 3, 2026 | GRND | S | 234,339 | $10.73 | $2,514,457 | 19,882,101 Indirect | -1.16% | Disposed | 47.7% (price as of 2026-08-19) |
| Feb. 2, 2026 | GRND | S | 178,427 | $11.14 | $1,987,677 | 20,116,440 Indirect | -0.88% | Disposed | 42.3% (price as of 2026-08-19) |
| Jan. 30, 2026 | GRND | S | 200,000 | $11.27 | $2,254,000 | 20,294,867 Indirect | -0.98% | Disposed | 40.6% (price as of 2026-08-19) |
| Jan. 27, 2026 | GRND | S | 200,000 | $11.74 | $2,348,000 | 20,494,867 Indirect | -0.97% | Disposed | 35.0% (price as of 2026-08-19) |
| Jan. 26, 2026 | GRND | S | 239,000 | $11.97 | $2,860,830 | 20,694,867 Indirect | -1.14% | Disposed | 32.4% (price as of 2026-08-19) |
| Jan. 23, 2026 | GRND | S | 200,000 | $11.90 | $2,380,000 | 20,933,867 Indirect | -0.95% | Disposed | 33.2% (price as of 2026-08-19) |
| Jan. 22, 2026 | GRND | S | 200,000 | $11.98 | $2,396,000 | 21,133,867 Indirect | -0.94% | Disposed | 32.3% (price as of 2026-08-19) |
| Jan. 21, 2026 | GRND | S | 200,000 | $11.99 | $2,398,000 | 21,333,867 Indirect | -0.93% | Disposed | 32.2% (price as of 2026-08-19) |
| Jan. 20, 2026 | GRND | S | 200,000 | $12.06 | $2,412,000 | 21,533,867 Indirect | -0.92% | Disposed | 31.4% (price as of 2026-08-19) |
| Jan. 12, 2026 | GRND | S | 112,368 | $13.23 | $1,486,629 | 4,455 Direct | -96.19% | Disposed | 19.8% (price as of 2026-08-19) |
| Jan. 9, 2026 | GRND | S | 302,939 | $13.22 | $4,004,854 | 116,823 Direct | -72.17% | Disposed | 19.9% (price as of 2026-08-19) |
| Jan. 5, 2026 | GRND | S | 92,071 | $13.53 | $1,245,721 | 419,762 Direct | -17.99% | Disposed | 17.1% (price as of 2026-08-19) |
| Dec. 29, 2025 | GRND | S | 3,628 | $13.50 | $48,978 | 511,833 Direct | -0.70% | Disposed | 17.4% (price as of 2026-08-19) |
| Dec. 26, 2025 | GRND | S | 43,994 | $13.51 | $594,359 | 515,461 Direct | -7.86% | Disposed | 17.3% (price as of 2026-08-19) |
| Dec. 23, 2025 | GRND | S | 100,000 | $13.80 | $1,380,000 | 559,455 Direct | -15.16% | Disposed | 14.9% (price as of 2026-08-19) |
| Nov. 18, 2025 | GRND | S | 75,748 | $13.65 | $1,033,960 | 22,388,867 Indirect | -0.34% | Disposed | 16.1% (price as of 2026-08-19) |
| Nov. 17, 2025 | GRND | S | 4,316 | $14.01 | $60,467 | 22,464,615 Indirect | -0.02% | Disposed | 13.1% (price as of 2026-08-19) |
| Nov. 14, 2025 | GRND | S | 363,665 | $14.10 | $5,127,676 | 22,468,931 Indirect | -1.59% | Disposed | 12.4% (price as of 2026-08-19) |
| Nov. 13, 2025 | GRND | S | 205,579 | $14.45 | $2,970,617 | 22,832,596 Indirect | -0.89% | Disposed | 9.7% (price as of 2026-08-19) |
| Nov. 12, 2025 | GRND | S | 291,948 | $14.80 | $4,320,830 | 23,038,175 Indirect | -1.25% | Disposed | 7.1% (price as of 2026-08-19) |
| Nov. 11, 2025 | GRND | S | 558,744 | $14.99 | $8,375,573 | 23,330,123 Indirect | -2.34% | Disposed | 5.7% (price as of 2026-08-19) |
| Dec. 10, 2024 | GRND | S | 375,000 | $15.14 | $5,677,500 | 1,275,372 Direct | -22.72% | Disposed | 4.7% (price as of 2026-08-19) |
| Dec. 10, 2024 | GRND | S | 375,000 | $15.14 | $5,677,500 | 1,650,372 Direct | -18.52% | Disposed | 4.7% (price as of 2026-08-19) |
| Dec. 10, 2024 | GRND | S | 375,000 | $15.14 | $5,677,500 | 31,540,655 Indirect | -1.17% | Disposed | 4.7% (price as of 2026-08-19) |
| Dec. 10, 2024 | GRND | S | 375,000 | $15.14 | $5,677,500 | 31,915,655 Indirect | -1.16% | Disposed | 4.7% (price as of 2026-08-19) |
| Dec. 5, 2024 | GRND | S | 386,922 | $15.32 | $5,927,645 | 32,581,478 Indirect | -1.17% | Disposed | 3.5% (price as of 2026-08-19) |
| Dec. 4, 2024 | GRND | S | 692,211 | $15.37 | $10,639,283 | 32,968,400 Indirect | -2.06% | Disposed | 3.1% (price as of 2026-08-19) |
| Dec. 3, 2024 | GRND | S | 633,273 | $15.32 | $9,701,742 | 33,660,611 Indirect | -1.85% | Disposed | 3.5% (price as of 2026-08-19) |
| Dec. 2, 2024 | GRND | S | 683,297 | $15.17 | $10,365,615 | 33,027,338 Indirect | -2.03% | Disposed | 4.5% (price as of 2026-08-19) |
| Nov. 13, 2024 | GRND | S | 195,600 | $14.39 | $2,814,684 | 34,977,181 Indirect | -0.56% | Disposed | 10.1% (price as of 2026-08-19) |
| Nov. 12, 2024 | GRND | S | 215,980 | $14.72 | $3,179,226 | 35,172,781 Indirect | -0.61% | Disposed | 7.7% (price as of 2026-08-19) |
| June 14, 2024 | GRND | S | 388,000 | $9.02 | $3,499,760 | 35,388,761 Indirect | -1.08% | Disposed | 75.7% (price as of 2026-08-19) |
| June 13, 2024 | GRND | S | 409,670 | $9.27 | $3,797,641 | 35,776,761 Indirect | -1.13% | Disposed | 71.0% (price as of 2026-08-19) |
| June 12, 2024 | GRND | S | 295,263 | $9.12 | $2,692,799 | 36,186,431 Indirect | -0.81% | Disposed | 73.8% (price as of 2026-08-19) |
| June 11, 2024 | GRND | S | 45,186 | $9.06 | $409,385 | 36,481,694 Indirect | -0.12% | Disposed | 74.9% (price as of 2026-08-19) |
| June 10, 2024 | GRND | S | 133,549 | $9.14 | $1,220,638 | 36,526,880 Indirect | -0.36% | Disposed | 73.4% (price as of 2026-08-19) |
| June 6, 2024 | GRND | S | 230,273 | $9.30 | $2,141,539 | 36,660,429 Indirect | -0.62% | Disposed | 70.4% (price as of 2026-08-19) |
| June 5, 2024 | GRND | S | 207,870 | $9.24 | $1,920,719 | 36,890,702 Indirect | -0.56% | Disposed | 71.5% (price as of 2026-08-19) |
| May 20, 2024 | GRND | S | 212,605 | $9.38 | $1,994,235 | 37,098,572 Indirect | -0.57% | Disposed | 69.0% (price as of 2026-08-19) |
| May 17, 2024 | GRND | S | 94,634 | $9.48 | $897,130 | 37,311,177 Indirect | -0.25% | Disposed | 67.2% (price as of 2026-08-19) |
| May 16, 2024 | GRND | S | 281,427 | $9.58 | $2,696,071 | 37,405,811 Indirect | -0.75% | Disposed | 65.4% (price as of 2026-08-19) |
| May 15, 2024 | GRND | S | 21,063 | $10.02 | $211,051 | 37,687,238 Indirect | -0.06% | Disposed | 58.2% (price as of 2026-08-19) |
| May 15, 2024 | GRND | S | 1,000,000 | $10.00 | $10,000,000 | 37,708,301 Indirect | -2.58% | Disposed | 58.5% (price as of 2026-08-19) |
| May 15, 2024 | GRND | S | 1,000,000 | $10.00 | $10,000,000 | 37,708,301 Indirect | -2.58% | Disposed | 58.5% (price as of 2026-08-19) |
| May 14, 2024 | GRND | S | 7,417 | $10.25 | $76,024 | 4,145 Direct | -64.15% | Disposed | 54.6% (price as of 2026-08-19) |
| May 14, 2024 | GRND | S | 7,417 | $10.25 | $76,024 | 4,145 Direct | -64.15% | Disposed | 54.6% (price as of 2026-08-19) |
| May 13, 2024 | GRND | S | 14,779 | $10.01 | $147,938 | 38,708,301 Indirect | -0.04% | Disposed | 58.3% (price as of 2026-08-19) |
| May 13, 2024 | GRND | S | 11,270 | $10.00 | $112,700 | 11,562 Direct | -49.36% | Disposed | 58.5% (price as of 2026-08-19) |
| May 13, 2024 | GRND | S | 14,779 | $10.01 | $147,938 | 38,708,301 Indirect | -0.04% | Disposed | 58.3% (price as of 2026-08-19) |
| May 13, 2024 | GRND | S | 11,270 | $10.00 | $112,700 | 11,562 Direct | -49.36% | Disposed | 58.5% (price as of 2026-08-19) |
| Sept. 15, 2023 | GRND | S | None | $1626814.15 | — | — Indirect | — | Disposed | -100.0% (price as of 2026-08-19) |
| Sept. 15, 2023 | GRND | S | None | $3052338.33 | — | — Indirect | — | Disposed | -100.0% (price as of 2026-08-19) |
| Sept. 15, 2023 | GRND | S | None | $2948063.52 | — | — Indirect | — | Disposed | -100.0% (price as of 2026-08-19) |
| Dec. 14, 2022 | GRND | S | 297,157 | — | — | 0 Indirect | — | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 15, 2023 | GRND | Guaranteed Exchangeable Note (Third Issue) [F1] | Common Stock (251,829) | — | March 30, 2024 | — | Disposed |
| Sept. 15, 2023 | GRND | Guaranteed Exchangeable Note (Second Issue) [F1] | Common Stock (456,254) | — | March 30, 2024 | — | Disposed |
| Sept. 15, 2023 | GRND | Guaranteed Exchangeable Note (Initial Issue) [F1] | Common Stock (392,552) | — | March 30, 2024 | — | Disposed |
| Dec. 14, 2022 | GRND | Options | Common Stock (297,157) | $5.52 | — | 297,157 | Acquired |
| Dec. 14, 2022 | GRND | Options | Common Stock (554,639) | $2.56 | — | 554,639 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.