Frank Witney
Insider
First SEC filing: June 2, 2026 · Latest: June 2, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 18, 2026 | LAB | A | 175,923 | · | · | 175,923 Direct | · | Acquired | (price as of 2026-10-05) |
| June 18, 2026 | LAB | A | 99,116 | · | · | 309,978 Direct | +47.01% | Acquired | (price as of 2026-10-05) |
| June 2, 2026 | CERS | A | 60,000 | · | · | 340,059 Direct | +21.42% | Acquired | (price as of 2026-10-05) |
| May 7, 2026 | RVTY | A | 1,265 | · | · | 23,354 Direct | +5.73% | Acquired | (price as of 2026-10-05) |
| May 7, 2026 | RVTY | A | 1,015 | · | · | 22,089 Direct | +4.82% | Acquired | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 49,627 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 49,627 | · | · | 49,627 Direct | · | Acquired | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 33,085 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 33,085 | · | · | 33,085 Direct | · | Acquired | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 124,069 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 20, 2026 | ALMR | J | 124,069 | · | · | 124,069 Direct | · | Acquired | (price as of 2026-10-05) |
| June 20, 2025 | LAB | A | 125,660 | · | · | 125,660 Direct | · | Acquired | (price as of 2026-10-05) |
| June 20, 2025 | LAB | A | 94,592 | · | · | 210,862 Direct | +81.36% | Acquired | (price as of 2026-10-05) |
| June 3, 2025 | CERS | A | 60,000 | · | · | 280,059 Direct | +27.27% | Acquired | (price as of 2026-10-05) |
| April 30, 2025 | RVTY | A | 1,338 | · | · | 21,074 Direct | +6.78% | Acquired | (price as of 2026-10-05) |
| April 30, 2025 | RVTY | A | 1,074 | · | · | 19,736 Direct | +5.76% | Acquired | (price as of 2026-10-05) |
| June 28, 2024 | LAB | A | 72,213 | · | · | 72,213 Direct | · | Acquired | (price as of 2026-10-05) |
| June 28, 2024 | LAB | A | 43,128 | · | · | 116,270 Direct | +58.96% | Acquired | (price as of 2026-10-05) |
| June 5, 2024 | CERS | A | 40,000 | $5.00 | $200,000 | 220,059 Direct | +22.21% | Acquired | -53.2% (price as of 2026-10-05) |
| May 9, 2024 | CERS | P | 20,000 | $1.89 | $37,800 | 180,059 Direct | +12.50% | Acquired | 23.8% (price as of 2026-10-05) |
| May 1, 2024 | RVTY | A | 1,218 | · | · | 18,662 Direct | +6.98% | Acquired | (price as of 2026-10-05) |
| May 1, 2024 | RVTY | A | 977 | · | · | 17,444 Direct | +5.93% | Acquired | (price as of 2026-10-05) |
| June 14, 2023 | LAB | A | 26,376 | · | · | 73,142 Direct | +56.40% | Acquired | (price as of 2026-10-05) |
| June 14, 2023 | LAB | A | 35,380 | · | · | 35,380 Direct | · | Acquired | (price as of 2026-10-05) |
| June 7, 2023 | CERS | A | 40,000 | $5.00 | $200,000 | 160,059 Direct | +33.32% | Acquired | -53.2% (price as of 2026-10-05) |
| May 15, 2023 | RVTY | A | 955 | · | · | 16,467 Direct | +6.16% | Acquired | (price as of 2026-10-05) |
| May 15, 2023 | RVTY | A | 783 | · | · | 15,512 Direct | +5.32% | Acquired | (price as of 2026-10-05) |
| June 15, 2022 | LAB | A | 42,571 | · | · | 42,571 Direct | · | Acquired | (price as of 2026-10-05) |
| June 15, 2022 | LAB | A | 30,914 | · | · | 46,766 Direct | +195.02% | Acquired | (price as of 2026-10-05) |
| June 1, 2022 | CERS | A | 39,866 | · | · | 39,866 Direct | · | Acquired | (price as of 2026-10-05) |
| June 1, 2022 | CERS | A | 20,454 | · | · | 120,059 Direct | +20.54% | Acquired | (price as of 2026-10-05) |
| May 6, 2022 | RVTY | A | 744 | · | · | 14,729 Direct | +5.32% | Acquired | (price as of 2026-10-05) |
| May 6, 2022 | RVTY | A | 610 | · | · | 13,985 Direct | +4.56% | Acquired | (price as of 2026-10-05) |
| April 4, 2022 | LAB | A | 23,401 | · | · | 23,401 Direct | · | Acquired | (price as of 2026-10-05) |
| April 4, 2022 | LAB | A | 15,852 | · | · | 15,852 Direct | · | Acquired | (price as of 2026-10-05) |
| June 2, 2021 | CERS | A | 29,983 | · | · | 29,983 Direct | · | Acquired | (price as of 2026-10-05) |
| June 2, 2021 | CERS | A | 14,888 | · | · | 99,605 Direct | +17.57% | Acquired | (price as of 2026-10-05) |
| June 1, 2021 | CERS | M | 13,228 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 1, 2021 | CERS | M | 13,228 | · | · | 84,717 Direct | +18.50% | Acquired | (price as of 2026-10-05) |
| May 7, 2021 | RVTY | A | 604 | · | · | 12,666 Direct | +5.01% | Acquired | (price as of 2026-10-05) |
| May 7, 2021 | RVTY | A | 709 | · | · | 13,375 Direct | +5.60% | Acquired | (price as of 2026-10-05) |
| June 5, 2020 | CERS | M | 11,184 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 5, 2020 | CERS | M | 11,184 | · | · | 71,489 Direct | +18.55% | Acquired | (price as of 2026-10-05) |
| June 3, 2020 | CERS | A | 13,228 | · | · | 13,228 Direct | · | Acquired | (price as of 2026-10-05) |
| June 3, 2020 | CERS | A | 28,177 | · | · | 28,177 Direct | · | Acquired | (price as of 2026-10-05) |
| May 8, 2020 | RVTY | A | 1,081 | · | · | 12,062 Direct | +9.84% | Acquired | (price as of 2026-10-05) |
| May 8, 2020 | RVTY | A | 244 | $92.20 | $22,497 | 10,981 Direct | +2.27% | Acquired | 70.7% (price as of 2026-10-05) |
| May 8, 2020 | RVTY | A | 922 | · | · | 10,737 Direct | +9.39% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2020 | CERS | P | 24,096 | $4.15 | $99,998 | 60,305 Direct | +66.55% | Acquired | -43.6% (price as of 2026-10-05) |
| June 5, 2019 | CERS | A | 11,184 | · | · | 11,184 Direct | · | Acquired | (price as of 2026-10-05) |
| June 5, 2019 | CERS | A | 23,703 | · | · | 23,703 Direct | · | Acquired | (price as of 2026-10-05) |
| June 4, 2019 | CERS | M | 10,223 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 4, 2019 | CERS | M | 10,223 | · | · | 36,209 Direct | +39.34% | Acquired | (price as of 2026-10-05) |
| April 30, 2019 | RVTY | A | 1,043 | · | · | 9,815 Direct | +11.89% | Acquired | (price as of 2026-10-05) |
| April 30, 2019 | RVTY | A | 785 | · | · | 8,772 Direct | +9.83% | Acquired | (price as of 2026-10-05) |
| June 6, 2018 | CERS | A | 10,223 | · | · | 10,223 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2018 | CERS | A | 19,242 | · | · | 19,242 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2018 | CERS | A | 10,223 | · | · | 10,223 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2018 | CERS | A | 16,399 | · | · | 16,399 Direct | · | Acquired | (price as of 2026-10-05) |
| June 5, 2018 | CERS | M | 15,853 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 5, 2018 | CERS | M | 15,853 | · | · | 25,986 Direct | +156.45% | Acquired | (price as of 2026-10-05) |
| May 3, 2018 | RVTY | A | 1,386 | · | · | 7,987 Direct | +21.00% | Acquired | (price as of 2026-10-05) |
| May 3, 2018 | RVTY | A | 1,043 | · | · | 6,601 Direct | +18.77% | Acquired | (price as of 2026-10-05) |
| June 7, 2017 | CERS | A | 15,853 | · | · | 15,853 Direct | · | Acquired | (price as of 2026-10-05) |
| June 7, 2017 | CERS | A | 38,005 | · | · | 38,005 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2017 | CERS | M | 10,133 | · | · | 10,133 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2017 | CERS | M | 10,133 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 9, 2017 | RVTY | A | 1,204 | · | · | 3,960 Direct | +43.69% | Acquired | (price as of 2026-10-05) |
| May 9, 2017 | RVTY | A | 1,598 | · | · | 5,558 Direct | +40.35% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2016 | RVTY | A | 1,526 | · | · | 2,756 Direct | +124.07% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2016 | RVTY | A | 1,150 | · | · | 1,230 Direct | +1437.50% | Acquired | (price as of 2026-10-05) |
| June 8, 2016 | CERS | A | 10,133 | · | · | 10,133 Direct | · | Acquired | (price as of 2026-10-05) |
| June 8, 2016 | CERS | A | 20,743 | · | · | 20,743 Direct | · | Acquired | (price as of 2026-10-05) |
| June 10, 2015 | CERS | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 11, 2014 | CERS | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| June 18, 2026 | LAB | Stock Option (Right to buy) | Common Stock | $0.83 | June 18, 2036 | 175,923 | Acquired |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Class B Common Stock | $0.59 | April 20, 2031 | 49,627 | Disposed |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Common Stock | $0.59 | April 20, 2031 | 49,627 | Acquired |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Class B Common Stock | $3.10 | April 15, 2035 | 33,085 | Disposed |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Common Stock | $3.10 | April 15, 2035 | 33,085 | Acquired |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Class B Common Stock | $7.60 | Jan. 14, 2036 | 124,069 | Disposed |
| April 20, 2026 | ALMR | Stock Option (Right to Buy) | Common Stock | $7.60 | Jan. 14, 2036 | 124,069 | Acquired |
| June 20, 2025 | LAB | Stock Option (Right to buy) | Common Stock | $1.05 | June 20, 2035 | 125,660 | Acquired |
| June 28, 2024 | LAB | Stock Option (Right to buy) | Common Stock | $1.77 | June 28, 2034 | 72,213 | Acquired |
| June 14, 2023 | LAB | Stock Option (Right to Buy) | Common Stock | $2.18 | June 14, 2033 | 35,380 | Acquired |
| June 15, 2022 | LAB | Stock Option (Right to Buy) | Common Stock | $1.86 | June 15, 2032 | 42,571 | Acquired |
| June 1, 2022 | CERS | Option (Right to Buy) | Common Stock | $4.84 | May 31, 2032 | 39,866 | Acquired |
| April 4, 2022 | LAB | Stock Option (Right to Buy) | Common Stock | $3.99 | April 4, 2032 | 23,401 | Acquired |
| June 2, 2021 | CERS | Option (Right to Buy) | Common Stock | $5.62 | June 1, 2031 | 29,983 | Acquired |
| June 1, 2021 | CERS | Restricted Stock Unit | Common Stock | · | · | 13,228 | Disposed |
| June 5, 2020 | CERS | Restricted Stock Unit | Common Stock | · | · | 11,184 | Disposed |
| June 3, 2020 | CERS | Restricted Stock Unit | Common Stock | · | · | 13,228 | Acquired |
| June 3, 2020 | CERS | Option (Right to Buy) | Common Stock | $6.37 | June 2, 2030 | 28,177 | Acquired |
| June 5, 2019 | CERS | Restricted Stock Unit | Common Stock | · | · | 11,184 | Acquired |
| June 5, 2019 | CERS | Option (Right to Buy) | Common Stock | $4.80 | June 4, 2029 | 23,703 | Acquired |
| June 4, 2019 | CERS | Restricted Stock Unit | Common Stock | · | · | 10,223 | Disposed |
| June 6, 2018 | CERS | Restricted Stock Unit | Common Stock | · | · | 10,223 | Acquired |
| June 6, 2018 | CERS | Option (Right to Buy) | Common Stock | $6.77 | June 5, 2028 | 19,242 | Acquired |
| June 6, 2018 | CERS | Restricted Stock Unit | Common Stock | · | · | 10,223 | Acquired |
| June 6, 2018 | CERS | Option (Right to Buy) | Common Stock | $6.77 | June 5, 2028 | 16,399 | Acquired |
| June 5, 2018 | CERS | Restricted Stock Unit | Common Stock | · | · | 15,853 | Disposed |
| June 7, 2017 | CERS | Restricted Stock Unit | Common Stock | · | · | 15,853 | Acquired |
| June 7, 2017 | CERS | Option Right to Buy | Common Stock | $2.61 | June 6, 2027 | 38,005 | Acquired |
| June 6, 2017 | CERS | Restricted Stock Unit | Common Stock | · | · | 10,133 | Disposed |
| June 8, 2016 | CERS | Restricted Stock Unit | Common Stock | · | · | 10,133 | Acquired |
| June 8, 2016 | CERS | Option (Right to Buy) | Common Stock | $6.08 | June 7, 2026 | 20,743 | Acquired |
| June 10, 2015 | CERS | Option (Right to Buy) | Common Stock | $5.40 | June 9, 2025 | 30,000 | Acquired |
| June 11, 2014 | CERS | Option (Right to Buy) | Common Stock | $4.34 | June 10, 2024 | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 16, 2026 | ALMR | Stock Option (Right to Buy) | 124,069 | Direct |
| April 16, 2026 | ALMR | Stock Option (Right to Buy) | 49,627 | Direct |
| April 16, 2026 | ALMR | Stock Option (Right to Buy) | 33,085 | Direct |
| April 6, 2022 | LAB | Common Stock | 4,225 | Indirect |
| July 27, 2016 | RVTY | Common Stock | 80 | Direct |
| March 31, 2014 | CERS | Option (Right to Buy) | 45,000 | Direct |