John B. Chang
CIK 1775672 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 7, 2019 · Latest: Aug. 7, 2019
On this page
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 17 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
17 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 12, 2024 | CCOI | S | 2,280 | $80.41 | $183,335 | 69,300 Direct | -3.19% | Disposed | -87.7% (price as of 2026-08-21) |
| Sept. 12, 2024 | CCOI | S | 1,400 | $71.67 | $100,338 | 71,580 Direct | -1.92% | Disposed | -86.2% (price as of 2026-08-21) |
| Aug. 23, 2024 | CCOI | S | 2,055 | $74.00 | $152,070 | 72,980 Direct | -2.74% | Disposed | -86.7% (price as of 2026-08-21) |
| Dec. 26, 2023 | CCOI | S 10b5-1 | 3,550 | $76.00 | $269,800 | 38,310 Direct | -8.48% | Disposed | -87.0% (price as of 2026-08-21) |
| Dec. 21, 2023 | CCOI | S 10b5-1 | 1,000 | $74.00 | $74,000 | 41,860 Direct | -2.33% | Disposed | -86.7% (price as of 2026-08-21) |
| Dec. 14, 2023 | CCOI | S 10b5-1 | 500 | $72.00 | $36,000 | 43,760 Direct | -1.13% | Disposed | -86.3% (price as of 2026-08-21) |
| May 3, 2023 | CCOI | S 10b5-1 | 2,500 | $72.00 | $180,000 | 44,860 Direct | -5.28% | Disposed | -86.3% (price as of 2026-08-21) |
| May 3, 2023 | CCOI | S 10b5-1 | 2,500 | $74.00 | $185,000 | 42,360 Direct | -5.57% | Disposed | -86.7% (price as of 2026-08-21) |
| April 17, 2023 | CCOI | S 10b5-1 | 500 | $70.00 | $35,000 | 47,360 Direct | -1.04% | Disposed | -85.9% (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) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 7, 2019 | CCOI | common stock | 18,834 | Direct |