Timothy C K Chou
CIK 1202967 · View on SEC EDGAR ↗
Insider
First SEC filing: June 10, 2026 · Latest: June 10, 2026
On this page
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net:
$-190,754
+ 28 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
28 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 8, 2026 | TDC | S 10b5-1 | 5,657 | $33.72 | $190,754 | 39,210 Direct | -12.61% | Disposed | -18.6% (price as of 2026-08-21) |
| May 22, 2025 | TDC | S 10b5-1 | 6,216 | $21.83 | $135,695 | 36,077 Direct | -14.70% | Disposed | 25.7% (price as of 2026-08-21) |
| May 20, 2024 | TDC | S | 6,356 | $33.43 | $212,481 | 30,804 Direct | -17.10% | Disposed | -17.9% (price as of 2026-08-21) |
| April 20, 2022 | TDC | S 10b5-1 | 4,092 | $45.82 | $187,495 | 18,229 Direct | -18.33% | Disposed | -40.1% (price as of 2026-08-21) |
| April 4, 2022 | TDC | S 10b5-1 | 2,265 | $49.06 | $111,121 | 22,321 Direct | -9.21% | Disposed | -44.0% (price as of 2026-08-21) |
| Oct. 22, 2021 | TDC | S 10b5-1 | 2,729 | $59.00 | $161,011 | 24,586 Direct | -9.99% | Disposed | -53.5% (price as of 2026-08-21) |
| Sept. 27, 2021 | TDC | S 10b5-1 | 2,728 | $55.13 | $150,395 | 27,315 Direct | -9.08% | Disposed | -50.2% (price as of 2026-08-21) |
| April 22, 2021 | TDC | S 10b5-1 | 4,135 | $51.00 | $210,885 | 27,114 Direct | -13.23% | Disposed | -46.2% (price as of 2026-08-21) |
| April 22, 2021 | TDC | S 10b5-1 | 2,728 | $52.00 | $141,856 | 24,386 Direct | -10.06% | Disposed | -47.2% (price as of 2026-08-21) |
| March 29, 2021 | TDC | S 10b5-1 | 1,407 | $39.73 | $55,900 | 31,249 Direct | -4.31% | Disposed | -30.9% (price as of 2026-08-21) |
| June 15, 2020 | TDC | S 10b5-1 | 2,814 | $20.60 | $57,968 | 32,656 Direct | -7.93% | Disposed | 33.3% (price as of 2026-08-21) |
| Feb. 13, 2020 | BLKB | S | 1,850 | $81.53 | $150,830 | 21,106 Direct | -8.06% | Disposed | -43.4% (price as of 2026-08-21) |
| May 30, 2019 | BLKB | S | 400 | $76.98 | $30,792 | 20,114 Direct | -1.95% | Disposed | -40.1% (price as of 2026-08-21) |
| Feb. 12, 2019 | BLKB | S | 750 | $77.45 | $58,088 | 20,514 Direct | -3.53% | Disposed | -40.5% (price as of 2026-08-21) |
| Nov. 21, 2018 | BLKB | S | 1,000 | $70.88 | $70,880 | 21,264 Direct | -4.49% | Disposed | -34.9% (price as of 2026-08-21) |
| Feb. 15, 2018 | BLKB | S | 4,432 | $99.00 | $438,768 | 20,119 Direct | -18.05% | Disposed | -53.4% (price as of 2026-08-21) |
| Feb. 13, 2017 | BLKB | S | 3,531 | $70.64 | $249,430 | 21,899 Direct | -13.89% | Disposed | -34.7% (price as of 2026-08-21) |
| Aug. 15, 2016 | BLKB | S | 2,931 | $69.00 | $202,239 | 25,430 Direct | -10.33% | Disposed | -33.2% (price as of 2026-08-21) |
| May 28, 2015 | BLKB | S | 2,000 | $51.50 | $103,000 | 22,114 Direct | -8.29% | Disposed | -10.5% (price as of 2026-08-21) |
| May 7, 2015 | BLKB | S | 2,144 | $52.54 | $112,646 | 24,114 Direct | -8.17% | Disposed | -12.2% (price as of 2026-08-21) |
| Nov. 18, 2013 | BLKB | S | 2,717 | $35.90 | $97,540 | 21,582 Direct | -11.18% | Disposed | 28.5% (price as of 2026-08-21) |
| Nov. 16, 2012 | BLKB | S | 4,144 | $21.34 | $88,433 | 19,368 Direct | -17.63% | Disposed | 116.1% (price as of 2026-08-21) |
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.
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.