Mason P Slaine
CIK 1079093 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 11, 2020 · Latest: Dec. 11, 2020
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 2 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
2 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 15, 2022 | CERT | S | 245,793 | $15.57 | $3,826,997 | 660,322 Direct | -27.13% | Disposed | -44.8% (price as of 2026-08-21) |
| Nov. 14, 2022 | CERT | S | 4,207 | $15.27 | $64,241 | 906,115 Direct | -0.46% | Disposed | -43.7% (price as of 2026-08-21) |
| Aug. 16, 2022 | CERT | S | 182,475 | $17.38 | $3,171,416 | 910,322 Direct | -16.70% | Disposed | -50.6% (price as of 2026-08-21) |
| June 2, 2022 | CERT | S | 100,000 | $19.55 | $1,955,000 | 1,242,797 Direct | -7.45% | Disposed | -56.1% (price as of 2026-08-21) |
| June 2, 2022 | CERT | S | 100,000 | $19.59 | $1,959,000 | 1,142,797 Direct | -8.05% | Disposed | -56.1% (price as of 2026-08-21) |
| June 2, 2022 | CERT | S | 50,000 | $19.52 | $976,000 | 1,092,797 Direct | -4.38% | Disposed | -56.0% (price as of 2026-08-21) |
| March 17, 2022 | CERT | S | 125,000 | $20.25 | $2,531,250 | 1,342,797 Direct | -8.52% | Disposed | -57.6% (price as of 2026-08-21) |
| March 16, 2022 | CERT | S | 125,000 | $20.17 | $2,521,250 | 1,467,797 Direct | -7.85% | Disposed | -57.4% (price as of 2026-08-21) |
| Feb. 1, 2022 | CERT | S 10b5-1 | 35,199 | $26.53 | $933,829 | 1,607,598 Direct | -2.14% | Disposed | -67.6% (price as of 2026-08-21) |
| Feb. 1, 2022 | CERT | S 10b5-1 | 14,801 | $26.80 | $396,667 | 1,592,797 Direct | -0.92% | Disposed | -67.9% (price as of 2026-08-21) |
| Jan. 3, 2022 | CERT | S 10b5-1 | 40,323 | $28.57 | $1,152,028 | 1,652,474 Direct | -2.38% | Disposed | -69.9% (price as of 2026-08-21) |
| Jan. 3, 2022 | CERT | S 10b5-1 | 9,677 | $28.88 | $279,472 | 1,642,797 Direct | -0.59% | Disposed | -70.2% (price as of 2026-08-21) |
| Dec. 13, 2021 | CERT | S 10b5-1 | 49,900 | $28.05 | $1,399,695 | 1,692,897 Direct | -2.86% | Disposed | -69.4% (price as of 2026-08-21) |
| Dec. 13, 2021 | CERT | S 10b5-1 | 100 | $28.55 | $2,855 | 1,692,797 Direct | -0.01% | Disposed | -69.9% (price as of 2026-08-21) |
| Nov. 22, 2021 | CERT | S | 376,149 | $29.74 | $11,186,671 | 1,742,797 Direct | -17.75% | Disposed | -71.1% (price as of 2026-08-21) |
| Sept. 13, 2021 | CERT | S | 620,668 | $29.80 | $18,495,906 | 2,118,946 Direct | -22.66% | Disposed | -71.2% (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 |
|---|---|---|---|---|---|---|---|
| May 17, 2022 | CERT | Restricted Stock Units | Common Stock (9,067) | — | — | 9,067 | 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. 11, 2020 | CERT | Common Stock | — | Direct |