Mark T. Walsh
Insider
First SEC filing: June 28, 2023 · Latest: June 18, 2026
Insider at
Insider transactions
0 buys (P)
12 sells (S)
Net: $-5,171,906
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 11, 2026 | SVV | M | 42,059 | $1.41 | $59,303 | 89,422 Direct | +88.80% | Acquired | 551.8% (price as of 2026-10-05) |
| Aug. 11, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 139,422 Direct | +55.91% | Acquired | 190.8% (price as of 2026-10-05) |
| Aug. 11, 2026 | SVV | S 10b5-1 | 92,059 | $11.93 | $1,098,264 | 47,363 Direct | -66.03% | Disposed | -23.0% (price as of 2026-10-05) |
| Aug. 11, 2026 | SVV | M | 42,059 | $1.41 | $59,303 | 540,800 Direct | -7.22% | Disposed | 551.8% (price as of 2026-10-05) |
| Aug. 11, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 660,395 Direct | -7.04% | Disposed | 190.8% (price as of 2026-10-05) |
| Aug. 10, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 97,363 Direct | +105.57% | Acquired | 551.8% (price as of 2026-10-05) |
| Aug. 10, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 147,363 Direct | +51.35% | Acquired | 190.8% (price as of 2026-10-05) |
| Aug. 10, 2026 | SVV | S 10b5-1 | 100,000 | $12.20 | $1,220,000 | 47,363 Direct | -67.86% | Disposed | -24.7% (price as of 2026-10-05) |
| Aug. 10, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 582,859 Direct | -7.90% | Disposed | 551.8% (price as of 2026-10-05) |
| Aug. 10, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 710,395 Direct | -6.58% | Disposed | 190.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 197,363 Direct | +33.93% | Acquired | 551.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 247,363 Direct | +25.33% | Acquired | 190.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | S 10b5-1 | 13,062 | $11.66 | $152,303 | 134,301 Direct | -8.86% | Disposed | -21.2% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | S 10b5-1 | 36,938 | $12.38 | $457,292 | 97,363 Direct | -27.50% | Disposed | -25.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | S 10b5-1 | 13,036 | $11.67 | $152,130 | 84,327 Direct | -13.39% | Disposed | -21.3% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | S 10b5-1 | 36,964 | $12.38 | $457,614 | 47,363 Direct | -43.83% | Disposed | -25.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 632,859 Direct | -7.32% | Disposed | 551.8% (price as of 2026-10-05) |
| Aug. 7, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 760,395 Direct | -6.17% | Disposed | 190.8% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 97,363 Direct | +105.57% | Acquired | 551.8% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 147,363 Direct | +51.35% | Acquired | 190.8% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | S 10b5-1 | 50,000 | $10.94 | $547,000 | 197,363 Direct | -20.21% | Disposed | -16.0% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | S 10b5-1 | 50,000 | $10.92 | $546,000 | 147,363 Direct | -25.33% | Disposed | -15.8% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | M | 50,000 | $1.41 | $70,500 | 682,859 Direct | -6.82% | Disposed | 551.8% (price as of 2026-10-05) |
| Aug. 6, 2026 | SVV | M | 50,000 | $3.16 | $158,000 | 810,395 Direct | -5.81% | Disposed | 190.8% (price as of 2026-10-05) |
| Aug. 5, 2026 | SVV | M | 7,941 | $1.41 | $11,197 | 55,304 Direct | +16.77% | Acquired | 551.8% (price as of 2026-10-05) |
| Aug. 5, 2026 | SVV | S 10b5-1 | 7,941 | $11.02 | $87,510 | 47,363 Direct | -14.36% | Disposed | -16.6% (price as of 2026-10-05) |
| Aug. 5, 2026 | SVV | M | 7,941 | $1.41 | $11,197 | 732,859 Direct | -1.07% | Disposed | 551.8% (price as of 2026-10-05) |
| June 18, 2026 | SVV | S 10b5-1 | 41,600 | $10.08 | $419,328 | 47,363 Direct | -46.76% | Disposed | -8.8% (price as of 2026-10-05) |
| June 17, 2026 | SVV | S 10b5-1 | 300 | $10.00 | $3,000 | 88,963 Direct | -0.34% | Disposed | -8.1% (price as of 2026-10-05) |
| June 16, 2026 | SVV | S 10b5-1 | 3,100 | $10.15 | $31,465 | 89,263 Direct | -3.36% | Disposed | -9.5% (price as of 2026-10-05) |
| March 13, 2026 | SVV | A | 80,901 | · | · | 80,901 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2026 | SVV | M | 33,502 | $8.03 | $269,021 | 33,502 Direct | · | Acquired | 14.4% (price as of 2026-10-05) |
| March 12, 2026 | SVV | M | 93,764 | $8.03 | $752,925 | 127,266 Direct | +279.88% | Acquired | 14.4% (price as of 2026-10-05) |
| March 12, 2026 | SVV | F | 34,903 | $8.03 | $280,271 | 92,363 Direct | -27.43% | Disposed | 14.4% (price as of 2026-10-05) |
| March 12, 2026 | SVV | M | 33,502 | · | · | 68,020 Direct | -33.00% | Disposed | (price as of 2026-10-05) |
| March 12, 2026 | SVV | M | 93,764 | · | · | 187,529 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| March 12, 2026 | SVV | A | 511,508 | $7.80 | $3,989,762 | 511,508 Direct | · | Acquired | 17.8% (price as of 2026-10-05) |
| March 12, 2026 | SVV | A | 256,410 | · | · | 256,410 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 24, 2025 | SVV | M | 34,184 | $1.41 | $48,199 | 34,184 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| Sept. 24, 2025 | SVV | S 10b5-1 | 34,184 | $13.08 | $447,127 | 0 Direct | -100.00% | Disposed | -29.7% (price as of 2026-10-05) |
| Sept. 24, 2025 | SVV | M | 34,184 | $1.41 | $48,199 | 2,064,456 Direct | -1.63% | Disposed | 551.8% (price as of 2026-10-05) |
| Sept. 18, 2025 | SVV | M | 2,100 | $1.41 | $2,961 | 2,100 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| Sept. 18, 2025 | SVV | S 10b5-1 | 2,100 | $13.00 | $27,300 | 0 Direct | -100.00% | Disposed | -29.3% (price as of 2026-10-05) |
| Sept. 18, 2025 | SVV | M | 2,100 | $1.41 | $2,961 | 2,098,640 Direct | -0.10% | Disposed | 551.8% (price as of 2026-10-05) |
| Sept. 17, 2025 | SVV | M | 3,970 | $1.41 | $5,598 | 3,970 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| Sept. 17, 2025 | SVV | S 10b5-1 | 3,970 | $13.01 | $51,650 | 0 Direct | -100.00% | Disposed | -29.4% (price as of 2026-10-05) |
| Sept. 17, 2025 | SVV | M | 3,970 | $1.41 | $5,598 | 2,100,740 Direct | -0.19% | Disposed | 551.8% (price as of 2026-10-05) |
| Sept. 11, 2025 | SVV | M | 4,096 | $1.41 | $5,775 | 4,096 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| Sept. 11, 2025 | SVV | S 10b5-1 | 4,096 | $13.02 | $53,330 | 0 Direct | -100.00% | Disposed | -29.4% (price as of 2026-10-05) |
| Sept. 11, 2025 | SVV | M | 4,096 | $1.41 | $5,775 | 2,104,710 Direct | -0.19% | Disposed | 551.8% (price as of 2026-10-05) |
| Sept. 5, 2025 | SVV | M | 5,650 | $1.41 | $7,966 | 5,650 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| Sept. 5, 2025 | SVV | S 10b5-1 | 5,650 | $13.00 | $73,450 | 0 Direct | -100.00% | Disposed | -29.3% (price as of 2026-10-05) |
| Sept. 5, 2025 | SVV | M | 5,650 | $1.41 | $7,966 | 2,108,806 Direct | -0.27% | Disposed | 551.8% (price as of 2026-10-05) |
| May 15, 2025 | SVV | M | 40,000 | $1.41 | $56,400 | 40,000 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| May 15, 2025 | SVV | S | 40,000 | $8.86 | $354,400 | 0 Direct | -100.00% | Disposed | 3.7% (price as of 2026-10-05) |
| May 15, 2025 | SVV | M | 40,000 | · | · | 2,114,456 Direct | -1.86% | Disposed | (price as of 2026-10-05) |
| March 12, 2025 | SVV | A | 281,293 | · | · | 281,293 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2025 | SVV | A | 671,140 | · | · | 671,140 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 10, 2024 | SVV | M | 60,000 | · | · | 2,154,456 Direct | -2.71% | Disposed | (price as of 2026-10-05) |
| Dec. 10, 2024 | SVV | S | 60,000 | $9.87 | $592,200 | 0 Direct | -100.00% | Disposed | -6.9% (price as of 2026-10-05) |
| Dec. 10, 2024 | SVV | M | 60,000 | $1.41 | $84,600 | 60,000 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| April 8, 2024 | SVV | M | 17,000 | · | · | 2,214,456 Direct | -0.76% | Disposed | (price as of 2026-10-05) |
| April 8, 2024 | SVV | S 10b5-1 | 17,000 | $18.61 | $316,370 | 0 Direct | -100.00% | Disposed | -50.6% (price as of 2026-10-05) |
| April 8, 2024 | SVV | M | 17,000 | $1.41 | $23,970 | 17,000 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| April 1, 2024 | SVV | M | 17,000 | · | · | 2,231,456 Direct | -0.76% | Disposed | (price as of 2026-10-05) |
| April 1, 2024 | SVV | S 10b5-1 | 17,000 | $19.13 | $325,210 | 0 Direct | -100.00% | Disposed | -52.0% (price as of 2026-10-05) |
| April 1, 2024 | SVV | M | 17,000 | $1.41 | $23,970 | 17,000 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| March 26, 2024 | SVV | M | 17,000 | · | · | 2,248,456 Direct | -0.75% | Disposed | (price as of 2026-10-05) |
| March 26, 2024 | SVV | S 10b5-1 | 17,000 | $18.45 | $313,650 | 0 Direct | -100.00% | Disposed | -50.2% (price as of 2026-10-05) |
| March 26, 2024 | SVV | M | 17,000 | $1.41 | $23,970 | 17,000 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| March 21, 2024 | SVV | M | 2,793 | · | · | 2,265,456 Direct | -0.12% | Disposed | (price as of 2026-10-05) |
| March 21, 2024 | SVV | S 10b5-1 | 2,793 | $18.01 | $50,302 | 0 Direct | -100.00% | Disposed | -49.0% (price as of 2026-10-05) |
| March 21, 2024 | SVV | M | 2,793 | $1.41 | $3,938 | 2,793 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| March 18, 2024 | SVV | M | 4,512 | · | · | 2,268,249 Direct | -0.20% | Disposed | (price as of 2026-10-05) |
| March 18, 2024 | SVV | S 10b5-1 | 4,512 | $18.05 | $81,442 | 0 Direct | -100.00% | Disposed | -49.1% (price as of 2026-10-05) |
| March 18, 2024 | SVV | M | 4,512 | $1.41 | $6,362 | 4,512 Direct | · | Acquired | 551.8% (price as of 2026-10-05) |
| March 12, 2024 | SVV | A | 208,768 | · | · | 208,768 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2024 | SVV | A | 101,522 | · | · | 101,522 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 |
|---|---|---|---|---|---|---|---|
| Aug. 11, 2026 | SVV | Stock Options (Right to Purchase) [F4] | Common Stock | $1.41 | Oct. 7, 2029 | 42,059 | Disposed |
| Aug. 11, 2026 | SVV | Stock Options (Right to Purchase) [F4] | Common Stock | $3.16 | Dec. 9, 2030 | 50,000 | Disposed |
| Aug. 10, 2026 | SVV | Stock Options (Right to Purchase) [F4] | Common Stock | $1.41 | Oct. 7, 2029 | 50,000 | Disposed |
| Aug. 10, 2026 | SVV | Stock Options (Right to Purchase) [F4] | Common Stock | $3.16 | Dec. 9, 2030 | 50,000 | Disposed |
| Aug. 7, 2026 | SVV | Stock Options (Right to Purchase) [F9] | Common Stock | $1.41 | Oct. 7, 2029 | 50,000 | Disposed |
| Aug. 7, 2026 | SVV | Stock Options (Right to Purchase) [F9] | Common Stock | $3.16 | Dec. 9, 2030 | 50,000 | Disposed |
| Aug. 6, 2026 | SVV | Stock Options (Right to Purchase) [F9] | Common Stock | $1.41 | Oct. 7, 2029 | 50,000 | Disposed |
| Aug. 6, 2026 | SVV | Stock Options (Right to Purchase) [F9] | Common Stock | $3.16 | Dec. 9, 2030 | 50,000 | Disposed |
| Aug. 5, 2026 | SVV | Stock Options (Right to Purchase) [F9] | Common Stock | $1.41 | Oct. 7, 2029 | 7,941 | Disposed |
| March 13, 2026 | SVV | Restricted Stock Units | Common Stock | · | · | 80,901 | Acquired |
| March 12, 2026 | SVV | Restricted Stock Units | Common Stock | · | · | 33,502 | Disposed |
| March 12, 2026 | SVV | Restricted Stock Units | Common Stock | · | · | 93,764 | Disposed |
| March 12, 2026 | SVV | Stock Options (Right to Purchase) [F6] | Common Stock | $7.80 | March 12, 2036 | 511,508 | Acquired |
| March 12, 2026 | SVV | Restricted Stock Units | Common Stock | · | · | 256,410 | Acquired |
| Sept. 24, 2025 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 34,184 | Disposed |
| Sept. 18, 2025 | SVV | Option (Right to Purchase) [F4] | Common Stock | $1.41 | Oct. 7, 2029 | 2,100 | Disposed |
| Sept. 17, 2025 | SVV | Option (Right to Purchase) [F4] | Common Stock | $1.41 | Oct. 7, 2029 | 3,970 | Disposed |
| Sept. 11, 2025 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 4,096 | Disposed |
| Sept. 5, 2025 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 5,650 | Disposed |
| May 15, 2025 | SVV | Option (Right to Purchase) [F1] | Common Stock | $1.41 | Oct. 7, 2029 | 40,000 | Disposed |
| March 12, 2025 | SVV | Restricted Stock Unit [F3] | Common Stock | $0.00 | · | 281,293 | Acquired |
| March 12, 2025 | SVV | Option (Right to Purchase) [F1] | Common Stock | $7.11 | March 12, 2035 | 671,140 | Acquired |
| Dec. 10, 2024 | SVV | Option (Right to Purchase) [F2] | Common Stock | $1.41 | Oct. 7, 2029 | 60,000 | Disposed |
| April 8, 2024 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 17,000 | Disposed |
| April 1, 2024 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 17,000 | Disposed |
| March 26, 2024 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 17,000 | Disposed |
| March 21, 2024 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 2,793 | Disposed |
| March 18, 2024 | SVV | Option (Right to Purchase) [F3] | Common Stock | $1.41 | Oct. 7, 2029 | 4,512 | Disposed |
| March 12, 2024 | SVV | Option (Right to Purchase) [F1] | Common Stock | $19.70 | March 12, 2034 | 208,768 | Acquired |
| March 12, 2024 | SVV | Restricted Stock Unit [F3] | Common Stock | $0.00 | · | 101,522 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 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 |
|---|---|---|---|---|---|---|---|---|
| 2023 | $956,949 | $8,184,000 | · | · | $993,002 | · | $100 | $10,134,051 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.