Vivek K Jayaraman
CIK 1605456 · View on SEC EDGAR ↗
First SEC filing: June 2, 2026 · Latest: June 2, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 16, 2026 | CERS | S 10b5-1 | 16,666 | $3.16 | $52,665 | 2,232,211 Direct | -0.74% | Disposed | -9.7% (price as of 2026-08-20) |
| June 30, 2026 | CERS | S 10b5-1 | 42,359 | $2.94 | $124,535 | 1,694,348 Direct | -2.44% | Disposed | -2.9% (price as of 2026-08-20) |
| May 29, 2026 | CERS | S 10b5-1 | 16,667 | $3.00 | $50,001 | 1,656,707 Direct | -1.00% | Disposed | -4.8% (price as of 2026-08-20) |
| May 1, 2026 | CERS | S 10b5-1 | 16,667 | $3.00 | $50,001 | 1,673,374 Direct | -0.99% | Disposed | -4.8% (price as of 2026-08-20) |
| March 14, 2025 | CERS | S 10b5-1 | 46,004 | $1.45 | $66,706 | 1,431,326 Direct | -3.11% | Disposed | 96.9% (price as of 2026-08-20) |
| March 13, 2025 | CERS | S 10b5-1 | 29,985 | $1.45 | $43,478 | 1,477,330 Direct | -1.99% | Disposed | 96.9% (price as of 2026-08-20) |
| March 7, 2025 | CERS | S 10b5-1 | 33,999 | $1.50 | $50,998 | 1,507,315 Direct | -2.21% | Disposed | 90.3% (price as of 2026-08-20) |
| March 4, 2025 | CERS | S 10b5-1 | 10,780 | $1.55 | $16,709 | 905,828 Direct | -1.18% | Disposed | 84.2% (price as of 2026-08-20) |
| March 14, 2024 | CERS | S 10b5-1 | 26,794 | $1.97 | $52,784 | 878,653 Direct | -2.96% | Disposed | 44.9% (price as of 2026-08-20) |
| March 13, 2024 | CERS | S 10b5-1 | 26,247 | $2.06 | $54,069 | 905,447 Direct | -2.82% | Disposed | 38.6% (price as of 2026-08-20) |
| March 13, 2023 | CERS | S 10b5-1 | 8,791 | $2.80 | $24,615 | 658,070 Direct | -1.32% | Disposed | 2.0% (price as of 2026-08-20) |
| March 13, 2023 | CERS | S 10b5-1 | 16,565 | $2.80 | $46,382 | 641,861 Direct | -2.52% | Disposed | 2.0% (price as of 2026-08-20) |
| March 14, 2022 | CERS | S 10b5-1 | 10,185 | $5.04 | $51,332 | 369,414 Direct | -2.68% | Disposed | -43.4% (price as of 2026-08-20) |
| March 14, 2022 | CERS | S 10b5-1 | 15,398 | $5.04 | $77,606 | 354,599 Direct | -4.16% | Disposed | -43.4% (price as of 2026-08-20) |
| March 14, 2022 | CERS | S 10b5-1 | 16,151 | $5.04 | $81,401 | 327,097 Direct | -4.71% | Disposed | -43.4% (price as of 2026-08-20) |
| March 15, 2021 | CERS | S 10b5-1 | 15,807 | $6.38 | $100,849 | 204,639 Direct | -7.17% | Disposed | -55.3% (price as of 2026-08-20) |
| March 15, 2021 | CERS | S 10b5-1 | 15,786 | $6.38 | $100,715 | 177,546 Direct | -8.17% | Disposed | -55.3% (price as of 2026-08-20) |
| March 15, 2021 | CERS | S 10b5-1 | 5,556 | $6.38 | $35,447 | 148,332 Direct | -3.61% | Disposed | -55.3% (price as of 2026-08-20) |
| Dec. 22, 2020 | CERS | S 10b5-1 | 2,668 | $8.00 | $21,344 | 135,003 Direct | -1.94% | Disposed | -64.3% (price as of 2026-08-20) |
| Dec. 22, 2020 | CERS | S 10b5-1 | 53,437 | $8.00 | $427,496 | 135,003 Direct | -28.36% | Disposed | -64.3% (price as of 2026-08-20) |
| Dec. 11, 2020 | CERS | S 10b5-1 | 25,000 | $8.00 | $200,000 | 135,003 Direct | -15.62% | Disposed | -64.3% (price as of 2026-08-20) |
| Dec. 11, 2020 | CERS | S 10b5-1 | 18,895 | $8.00 | $151,160 | 160,003 Direct | -10.56% | Disposed | -64.3% (price as of 2026-08-20) |
| March 17, 2020 | CERS | S 10b5-1 | 17,459 | $3.59 | $62,678 | 138,912 Direct | -11.17% | Disposed | -20.5% (price as of 2026-08-20) |
| March 17, 2020 | CERS | S 10b5-1 | 6,041 | $3.59 | $21,687 | 111,371 Direct | -5.15% | Disposed | -20.5% (price as of 2026-08-20) |
| March 13, 2019 | CERS | S | 5,979 | $5.90 | $35,276 | 75,163 Direct | -7.37% | Disposed | -51.6% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| July 1, 2026 | CERS | Performance Rights | Common Stock (369,686) | — | July 1, 2029 | 369,686 | Acquired |
| March 3, 2025 | CERS | Restricted Stock Unit | Common Stock (23,850) | — | — | 23,850 | Disposed |
| Feb. 26, 2025 | CERS | Restricted Stock Unit | Common Stock (23,850) | — | — | 23,850 | Acquired |
| March 12, 2024 | CERS | Restricted Stock Unit | Common Stock (25,000) | — | — | 25,000 | Disposed |
| March 12, 2023 | CERS | Restricted Stock Unit | Common Stock (44,200) | — | — | 44,200 | Disposed |
| March 12, 2023 | CERS | Restricted Stock Unit | Common Stock (25,000) | — | — | 25,000 | Disposed |
| March 12, 2022 | CERS | Restricted Stock Unit | Common Stock (25,000) | — | — | 25,000 | Disposed |
| March 12, 2022 | CERS | Restricted Stock Unit | Common Stock (42,900) | — | — | 42,900 | Disposed |
| March 12, 2022 | CERS | Restricted Stock Unit | Common Stock (45,000) | — | — | 45,000 | Disposed |
| March 1, 2022 | CERS | Option (Right to Buy) | Common Stock (180,000) | $5.76 | Feb. 28, 2032 | 180,000 | Acquired |
| March 12, 2021 | CERS | Restricted Stock Unit | Common Stock (42,900) | — | — | 42,900 | Disposed |
| March 12, 2021 | CERS | Restricted Stock Unit | Common Stock (45,000) | — | — | 45,000 | Disposed |
| March 12, 2021 | CERS | Restricted Stock Unit | Common Stock (15,833) | — | — | 15,833 | Disposed |
| March 1, 2021 | CERS | Restricted Stock Unit | Common Stock (75,000) | — | — | 75,000 | Acquired |
| March 1, 2021 | CERS | Option (Right to Buy) | Common Stock (150,000) | $6.52 | Feb. 28, 2031 | 150,000 | Acquired |
| Dec. 22, 2020 | CERS | Option (Right to Buy) | Common Stock (2,668) | $4.33 | Feb. 28, 2027 | 2,668 | Disposed |
| Dec. 22, 2020 | CERS | Option (Right to Buy) | Common Stock (53,437) | $4.32 | Feb. 28, 2028 | 53,437 | Disposed |
| Dec. 11, 2020 | CERS | Option (Right to Buy) | Common Stock (18,895) | $4.33 | Feb. 28, 2027 | 18,895 | Acquired |
| Aug. 29, 2020 | CERS | Restricted Stock Unit | Common Stock (18,750) | — | — | 18,750 | Acquired |
| March 12, 2020 | CERS | Restricted Stock Unit | Common Stock (45,000) | — | — | 45,000 | Disposed |
| March 12, 2020 | CERS | Restricted Stock Unit | Common Stock (15,833) | — | — | 15,833 | Disposed |
| March 12, 2020 | CERS | Restricted Stock Unit | Common Stock (3,750) | — | — | 3,750 | Disposed |
| March 2, 2020 | CERS | Restricted Stock Unit | Common Stock (130,000) | — | — | 130,000 | Acquired |
| March 2, 2020 | CERS | Option (Right to Buy) | Common Stock (260,000) | $5.11 | March 1, 2030 | 260,000 | Acquired |
| Aug. 30, 2019 | CERS | Restricted Stock Unit | Common Stock (18,750) | — | — | 18,750 | Acquired |
| June 6, 2019 | CERS | Restricted Stock Unit | Common Stock (135,000) | — | — | 135,000 | Acquired |
| March 12, 2019 | CERS | Restricted Stock Unit | Common Stock (15,834) | — | — | 15,834 | Disposed |
| March 12, 2019 | CERS | Restricted Stock Unit | Common Stock (3,750) | — | — | 3,750 | Disposed |
| Aug. 29, 2018 | CERS | Restricted Stock Unit | Common Stock (18,750) | — | — | 18,750 | Acquired |
| March 12, 2018 | CERS | Restricted Stock Unit | Common Stock (3,750) | — | — | 3,750 | Disposed |
| March 1, 2018 | CERS | Restricted Stock Unit | Common Stock (47,500) | — | — | 47,500 | Acquired |
| March 1, 2018 | CERS | Option (Right to Buy) | Common Stock (95,000) | $4.32 | Feb. 28, 2028 | 95,000 | Acquired |
| Aug. 29, 2017 | CERS | Restricted Stock Unit | Common Stock (18,750) | — | — | 18,750 | Disposed |
| March 1, 2017 | CERS | Restricted Stock Unit | Common Stock (11,250) | — | — | 11,250 | Acquired |
| March 1, 2017 | CERS | Option (Right to Buy) | Common Stock (50,000) | $4.33 | Feb. 28, 2027 | 50,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $565,768 | — | $1,240,044 | — | $395,244 | — | $3,142 | $2,204,198 |
| 2024 | $548,402 | $60,324 | $872,000 | — | — | — | $3,142 | $1,483,868 |
| 2023 | $544,008 | — | $1,093,600 | — | $150,811 | — | $1,860 | $1,790,279 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.