Jieun W. Choe
CIK 1834184 · 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
+ 3 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
3 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 20, 2021 | CERT | S 10b5-1 | 7,500 | $28.00 | $210,000 | 250,491 Direct | -2.91% | Disposed | -69.3% (price as of 2026-08-21) |
| Dec. 17, 2021 | CERT | S 10b5-1 | 5,000 | $26.13 | $130,650 | 257,991 Direct | -1.90% | Disposed | -67.1% (price as of 2026-08-21) |
| Nov. 19, 2021 | CERT | S 10b5-1 | 20,000 | $30.30 | $606,000 | 262,991 Direct | -7.07% | Disposed | -71.6% (price as of 2026-08-21) |
| Oct. 19, 2021 | CERT | S 10b5-1 | 1,434 | $37.05 | $53,130 | 301,557 Direct | -0.47% | Disposed | -76.8% (price as of 2026-08-21) |
| Oct. 19, 2021 | CERT | S 10b5-1 | 18,083 | $38.15 | $689,866 | 283,474 Direct | -6.00% | Disposed | -77.5% (price as of 2026-08-21) |
| Oct. 19, 2021 | CERT | S 10b5-1 | 483 | $38.56 | $18,624 | 282,991 Direct | -0.17% | Disposed | -77.7% (price as of 2026-08-21) |
| Sept. 17, 2021 | CERT | S 10b5-1 | 6,265 | $35.32 | $221,280 | 316,726 Direct | -1.94% | Disposed | -75.7% (price as of 2026-08-21) |
| Sept. 17, 2021 | CERT | S 10b5-1 | 13,735 | $35.96 | $493,911 | 302,991 Direct | -4.34% | Disposed | -76.1% (price as of 2026-08-21) |
| Aug. 24, 2021 | CERT | S 10b5-1 | 7,500 | $30.00 | $225,000 | 322,991 Direct | -2.27% | Disposed | -71.4% (price as of 2026-08-21) |
| Aug. 19, 2021 | CERT | S 10b5-1 | 12,500 | $28.34 | $354,250 | 330,491 Direct | -3.64% | Disposed | -69.7% (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 |
|---|---|---|---|---|---|---|---|
| April 1, 2022 | CERT | Restricted Stock Units | Common Stock (15,962) | — | April 1, 2025 | 15,962 | 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 |