Guillermo Briseno
CIK 1953256 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 8, 2022 · Latest: March 27, 2026
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-2,817,287
+ 16 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
16 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 26, 2026 | DCI | S | 8,600 | $84.97 | $730,742 | 29,267 Direct | -22.71% | Disposed | 9.8% (price as of 2026-08-21) |
| March 26, 2026 | DCI | S | 12,000 | $84.97 | $1,019,640 | 29,267 Direct | -29.08% | Disposed | 9.8% (price as of 2026-08-21) |
| Sept. 3, 2025 | DCI | S | 13,500 | $79.03 | $1,066,905 | 25,309 Direct | -34.79% | Disposed | 18.1% (price as of 2026-08-21) |
| Dec. 6, 2023 | DCI | S | 2,737 | $61.50 | $168,326 | 16,170 Direct | -14.48% | Disposed | 51.7% (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.
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 |
|---|---|---|---|---|---|---|---|
| March 26, 2026 | DCI | Employee Stock Option (right to buy) | Common Stock (8,600) | $45.43 | Sept. 22, 2027 | 8,600 | Disposed |
| March 26, 2026 | DCI | Employee Stock Option (right to buy) | Common Stock (12,000) | $42.72 | Dec. 16, 2026 | 12,000 | Disposed |
| Oct. 1, 2025 | DCI | Employee Stock Option (right to buy) | Common Stock (15,300) | $82.08 | Oct. 1, 2035 | 15,300 | Acquired |
| Sept. 3, 2025 | DCI | Employee Stock Option (right to buy) | Common Stock (13,500) | $28.00 | Dec. 17, 2025 | 13,500 | Disposed |
| Oct. 1, 2024 | DCI | Employee Stock Option (right to buy) | Common Stock (18,500) | $73.17 | Oct. 1, 2034 | 18,500 | Acquired |
| Sept. 3, 2024 | DCI | Employee Stock Option (right to buy) | Common Stock (12,000) | $38.78 | Dec. 5, 2024 | 12,000 | Disposed |
| Dec. 6, 2023 | DCI | Common Stock | Common Stock (4,000) | $42.05 | Dec. 6, 2023 | 4,000 | Disposed |
| Sept. 21, 2023 | DCI | Employee Stock Option (right to buy) | Common Stock (17,200) | $59.66 | Sept. 21, 2033 | 17,200 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 11 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 8, 2022 | DCI | Common Stock | 9,793 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (4,000) | 4,000 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (12,000) | 12,000 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (13,500) | 13,500 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (12,000) | 12,000 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (17,200) | 17,200 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (9,900) | 9,900 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (11,300) | 11,300 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (11,800) | 11,800 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (9,700) | 9,700 | Direct |
| Nov. 8, 2022 | DCI | Common Stock→ Common Stock (16,100) | 16,100 | Direct |