Jensen Chrystal
Officer · CERS
As of 2026-09-16, Jensen Chrystal has 23 Form 4 transactions on record across 1 company — 8 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $2.4M
- Indirect $0
| CERS | direct | 936,657 sh | $2.4M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-17 | CERS | Sale | 30,000 @ $2.98 | $90K | −3.1% of holding | 936,657 | Form 4 |
| 2026-06-30 | CERS | Sale | 24,329 @ $2.94 | $72K | −2.5% of holding | 966,657 | Form 4 |
| 2026-03-06 | CERS | Sale | 30,845 @ $2.01 | $62K | −2.8% of holding | 1,059,139 | Form 4 |
| 2025-11-24 | CERS | Sale | 55,000 @ $1.70 | $94K | −7.0% of holding | 728,294 | Form 4 |
| 2025-03-14 | CERS | Sale | 30,075 @ $1.45 | $44K | −3.7% of holding | 783,294 | Form 4 |
| 2025-03-13 | CERS | Sale | 18,949 @ $1.45 | $27K | −2.3% of holding | 813,369 | Form 4 |
| 2025-03-12 | CERS | Sale | 113,008 @ $1.66 | $187K | −10.7% of holding | 946,131 | Form 4 |
| 2025-03-07 | CERS | Sale | 27,457 @ $1.50 | $41K | −3.2% of holding | 832,318 | Form 4 |
| 2025-03-04 | CERS | Sale | 60,000 @ $1.59 | $95K | −12.9% of holding | 405,198 | Form 4 |
| 2025-03-04 | CERS | Sale | 6,292 @ $1.55 | $10K | −1.3% of holding | 465,198 | Form 4 |
| 2024-12-16 | CERS | Sale | 16,667 @ $1.71 | $29K | −3.5% of holding | 457,578 | Form 4 |
12 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-30 | CERS | Award / grant | 55,000 | 990,986 | Form 4 |
| 2026-04-01 | CERS | Award / grant | 200,000 | 1,146,131 | Form 4 |
| 2026-03-05 | CERS | Award / grant | 55,220 | 1,083,514 | Form 4 |
| 2026-03-02 | CERS | Award / grant | 300,000 | 1,028,294 | Form 4 |
| 2025-03-06 | CERS | Award / grant | 69,577 | 859,775 | Form 4 |
| 2025-03-06 | CERS | Award / grant | 385,000 | 790,198 | Form 4 |
| 2025-03-03 | CERS | Option exercise | 13,912 | 0 | Form 4 |
| 2025-03-03 | CERS | Option exercise | 13,912 | 471,490 | Form 4 |
| 2025-03-03 | CERS | Option exercise | 13,912 | 0 | Form 4 |
| 2025-03-03 | CERS | Option exercise | 13,912 | 471,490 | Form 4 |
| 2025-02-26 | CERS | Award / grant | 13,912 | 13,912 | Form 4 |
| 2025-02-26 | CERS | Award / grant | 13,912 | 13,912 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.