Larry Madden
Insider
Activist
First SEC filing: Jan. 14, 2026 · Latest: June 8, 2026
Insider at
Insider transactions
0 buys (P)
23 sells (S)
Net: $-3,202,042
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 18, 2026 | DSP | S 10b5-1 | 14,602 | $12.10 | $176,684 | 342,711 Direct | -4.09% | Disposed | 1.2% (price as of 2026-10-02) |
| Sept. 16, 2026 | DSP | S 10b5-1 | 17,042 | $12.52 | $213,366 | 357,313 Direct | -4.55% | Disposed | -2.2% (price as of 2026-10-02) |
| Sept. 10, 2026 | DSP | F | 24,016 | $12.74 | $305,964 | 374,355 Direct | -6.03% | Disposed | -3.9% (price as of 2026-10-02) |
| Aug. 11, 2026 | DSP | S 10b5-1 | 26,020 | $13.03 | $339,041 | 399,802 Direct | -6.11% | Disposed | -6.1% (price as of 2026-10-02) |
| Aug. 11, 2026 | DSP | S 10b5-1 | 1,431 | $13.68 | $19,576 | 398,371 Direct | -0.36% | Disposed | -10.5% (price as of 2026-10-02) |
| July 23, 2026 | DSP | S 10b5-1 | 2,814 | $10.69 | $30,082 | 425,822 Direct | -0.66% | Disposed | 14.5% (price as of 2026-10-02) |
| July 8, 2026 | DSP | S 10b5-1 | 11,273 | $12.69 | $143,054 | 428,636 Direct | -2.56% | Disposed | -3.5% (price as of 2026-10-02) |
| July 7, 2026 | DSP | S 10b5-1 | 9,149 | $12.86 | $117,656 | 439,909 Direct | -2.04% | Disposed | -4.8% (price as of 2026-10-02) |
| July 6, 2026 | DSP | S 10b5-1 | 10,097 | $12.78 | $129,040 | 449,058 Direct | -2.20% | Disposed | -4.2% (price as of 2026-10-02) |
| June 15, 2026 | DSP | S | 25,376 | $11.10 | $281,674 | 459,155 Direct | -5.24% | Disposed | 10.3% (price as of 2026-10-02) |
| June 8, 2026 | DSP | S 10b5-1 | 14,670 | $12.10 | $177,507 | 484,531 Direct | -2.94% | Disposed | 1.2% (price as of 2026-10-02) |
| June 5, 2026 | DSP | S 10b5-1 | 18,663 | $12.24 | $228,435 | 499,201 Direct | -3.60% | Disposed | 0.0% (price as of 2026-10-02) |
| May 11, 2026 | DSP | S 10b5-1 | 13,826 | $11.29 | $156,096 | 521,335 Direct | -2.58% | Disposed | 8.4% (price as of 2026-10-02) |
| May 11, 2026 | DSP | S 10b5-1 | 3,471 | $11.95 | $41,478 | 517,864 Direct | -0.67% | Disposed | 2.4% (price as of 2026-10-02) |
| May 8, 2026 | DSP | S 10b5-1 | 18,538 | $11.85 | $219,675 | 535,161 Direct | -3.35% | Disposed | 3.3% (price as of 2026-10-02) |
| April 23, 2026 | DSP | S 10b5-1 | 12,782 | $10.16 | $129,865 | 553,699 Direct | -2.26% | Disposed | 20.5% (price as of 2026-10-02) |
| April 22, 2026 | DSP | S 10b5-1 | 13,263 | $10.74 | $142,445 | 566,481 Direct | -2.29% | Disposed | 14.0% (price as of 2026-10-02) |
| April 21, 2026 | DSP | S 10b5-1 | 13,283 | $10.91 | $144,918 | 579,744 Direct | -2.24% | Disposed | 12.2% (price as of 2026-10-02) |
| April 6, 2026 | DSP | S 10b5-1 | 7,297 | $11.31 | $82,529 | 593,027 Direct | -1.22% | Disposed | 8.2% (price as of 2026-10-02) |
| April 2, 2026 | DSP | S 10b5-1 | 10,131 | $10.94 | $110,833 | 600,324 Direct | -1.66% | Disposed | 11.9% (price as of 2026-10-02) |
| April 1, 2026 | DSP | S 10b5-1 | 7,410 | $11.27 | $83,511 | 610,455 Direct | -1.20% | Disposed | 8.6% (price as of 2026-10-02) |
| March 15, 2026 | DSP | A | 249,258 | · | · | 617,865 Direct | +67.62% | Acquired | (price as of 2026-10-02) |
| March 13, 2026 | DSP | S 10b5-1 | 1,658 | $13.03 | $21,604 | 368,607 Direct | -0.45% | Disposed | -6.1% (price as of 2026-10-02) |
| March 10, 2026 | DSP | F | 35,289 | $10.50 | $370,534 | 370,265 Direct | -8.70% | Disposed | 16.6% (price as of 2026-10-02) |
| Jan. 22, 2026 | DSP | S 10b5-1 | 4,224 | $13.09 | $55,292 | 405,554 Direct | -1.03% | Disposed | -6.5% (price as of 2026-10-02) |
| Dec. 17, 2025 | DSP | S | 13,477 | $11.70 | $157,681 | 409,778 Direct | -3.18% | Disposed | 4.6% (price as of 2026-10-02) |
| Sept. 15, 2025 | DSP | S | 13,006 | $9.73 | $126,548 | 423,255 Direct | -2.98% | Disposed | 25.8% (price as of 2026-10-02) |
| June 13, 2025 | DSP | S | 13,265 | $13.08 | $173,506 | 436,261 Direct | -2.95% | Disposed | -6.4% (price as of 2026-10-02) |
| March 18, 2025 | DSP | A | 50,975 | · | · | 449,526 Direct | +12.79% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | DSP | A | 112,423 | · | · | 398,551 Direct | +39.29% | Acquired | (price as of 2026-10-02) |
| March 10, 2025 | DSP | F | 58,212 | $13.32 | $775,384 | 286,128 Direct | -16.91% | Disposed | -8.1% (price as of 2026-10-02) |
| Feb. 5, 2025 | DSP | S | 14,284 | $23.12 | $330,246 | 344,340 Direct | -3.98% | Disposed | -47.1% (price as of 2026-10-02) |
| Jan. 2, 2025 | DSP | S | 14,284 | $18.76 | $267,968 | 358,624 Direct | -3.83% | Disposed | -34.8% (price as of 2026-10-02) |
| Dec. 10, 2024 | DSP | F | 5,442 | $21.37 | $116,296 | 372,908 Direct | -1.44% | Disposed | -42.7% (price as of 2026-10-02) |
| Dec. 4, 2024 | DSP | S | 14,284 | $19.51 | $278,681 | 378,350 Direct | -3.64% | Disposed | -37.3% (price as of 2026-10-02) |
| Nov. 18, 2024 | DSP | S | 18,587 | $16.94 | $314,864 | 396,551 Direct | -4.48% | Disposed | -27.7% (price as of 2026-10-02) |
| Nov. 18, 2024 | DSP | S | 3,917 | $17.44 | $68,312 | 392,634 Direct | -0.99% | Disposed | -29.8% (price as of 2026-10-02) |
| Nov. 15, 2024 | DSP | S | 45,969 | $15.75 | $724,012 | 415,138 Direct | -9.97% | Disposed | -22.3% (price as of 2026-10-02) |
| Nov. 14, 2024 | DSP | S | 14,962 | $14.61 | $218,595 | 513,388 Direct | -2.83% | Disposed | -16.2% (price as of 2026-10-02) |
| Nov. 14, 2024 | DSP | S | 48,019 | $15.28 | $733,730 | 465,369 Direct | -9.35% | Disposed | -19.9% (price as of 2026-10-02) |
| Nov. 14, 2024 | DSP | S | 4,262 | $16.20 | $69,044 | 461,107 Direct | -0.92% | Disposed | -24.4% (price as of 2026-10-02) |
| Oct. 28, 2024 | DSP | S | 1,498 | $11.57 | $17,332 | 528,350 Direct | -0.28% | Disposed | 5.8% (price as of 2026-10-02) |
| Oct. 11, 2024 | DSP | S | 2,768 | $11.23 | $31,085 | 529,848 Direct | -0.52% | Disposed | 9.0% (price as of 2026-10-02) |
| Oct. 10, 2024 | DSP | S | 1,089 | $11.06 | $12,044 | 532,616 Direct | -0.20% | Disposed | 10.7% (price as of 2026-10-02) |
| Oct. 9, 2024 | DSP | S | 1,953 | $11.19 | $21,854 | 533,705 Direct | -0.36% | Disposed | 9.4% (price as of 2026-10-02) |
| Sept. 24, 2024 | DSP | S | 2,776 | $11.15 | $30,952 | 535,658 Direct | -0.52% | Disposed | 9.8% (price as of 2026-10-02) |
| Sept. 23, 2024 | DSP | S | 3,084 | $11.05 | $34,078 | 538,434 Direct | -0.57% | Disposed | 10.8% (price as of 2026-10-02) |
| Sept. 20, 2024 | DSP | S | 1,116 | $11.02 | $12,298 | 541,518 Direct | -0.21% | Disposed | 11.1% (price as of 2026-10-02) |
| Sept. 10, 2024 | DSP | F | 14,005 | $10.07 | $141,030 | 542,634 Direct | -2.52% | Disposed | 21.5% (price as of 2026-10-02) |
| Aug. 26, 2024 | DSP | S | 3,263 | $11.12 | $36,285 | 556,639 Direct | -0.58% | Disposed | 10.1% (price as of 2026-10-02) |
| Aug. 23, 2024 | DSP | S | 3,885 | $11.16 | $43,357 | 559,902 Direct | -0.69% | Disposed | 9.7% (price as of 2026-10-02) |
| June 10, 2024 | DSP | F | 14,009 | $9.23 | $129,303 | 563,787 Direct | -2.42% | Disposed | 32.6% (price as of 2026-10-02) |
| March 15, 2024 | DSP | A | 121,490 | · | · | 577,796 Direct | +26.62% | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | DSP | A | 60,227 | · | · | 60,227 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2024 | DSP | F | 61,229 | $10.13 | $620,250 | 456,306 Direct | -11.83% | Disposed | 20.8% (price as of 2026-10-02) |
| Dec. 10, 2023 | DSP | F | 16,781 | $7.38 | $123,844 | 517,535 Direct | -3.14% | Disposed | 65.9% (price as of 2026-10-02) |
| Sept. 10, 2023 | DSP | F | 16,784 | $6.64 | $111,446 | 534,316 Direct | -3.05% | Disposed | 84.3% (price as of 2026-10-02) |
| June 10, 2023 | DSP | F | 16,784 | $4.24 | $71,164 | 551,100 Direct | -2.96% | Disposed | 188.7% (price as of 2026-10-02) |
| March 10, 2023 | DSP | F | 38,707 | $4.13 | $159,860 | 567,884 Direct | -6.38% | Disposed | 196.4% (price as of 2026-10-02) |
| March 7, 2023 | DSP | A | 156,406 | · | · | 156,406 Direct | · | Acquired | (price as of 2026-10-02) |
| March 7, 2023 | DSP | A | 112,613 | · | · | 606,591 Direct | +22.80% | Acquired | (price as of 2026-10-02) |
| Dec. 10, 2022 | DSP | F | 16,784 | $3.39 | $56,898 | 493,978 Direct | -3.29% | Disposed | 261.1% (price as of 2026-10-02) |
| Sept. 10, 2022 | DSP | F | 16,784 | $4.86 | $81,570 | 510,762 Direct | -3.18% | Disposed | 151.9% (price as of 2026-10-02) |
| June 10, 2022 | DSP | F | 16,784 | $6.16 | $103,389 | 527,546 Direct | -3.08% | Disposed | 98.7% (price as of 2026-10-02) |
| March 15, 2022 | DSP | A | 295,508 | · | · | 295,508 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2022 | DSP | A | 166,667 | · | · | 544,330 Direct | +44.13% | Acquired | (price as of 2026-10-02) |
| March 14, 2022 | DSP | S | 21,628 | $6.08 | $131,498 | 377,663 Direct | -5.42% | Disposed | 101.3% (price as of 2026-10-02) |
| Dec. 10, 2021 | DSP | F | 16,784 | $9.41 | $157,937 | 399,291 Direct | -4.03% | Disposed | 30.1% (price as of 2026-10-02) |
| Sept. 13, 2021 | DSP | S | 18,404 | $12.51 | $230,234 | 416,075 Direct | -4.24% | Disposed | -2.2% (price as of 2026-10-02) |
| Aug. 9, 2021 | DSP | F | 75,521 | $17.73 | $1,338,987 | 434,479 Direct | -14.81% | Disposed | -31.0% (price as of 2026-10-02) |
| Feb. 10, 2021 | DSP | M | 15,000 | · | · | 474,356 Indirect | -3.07% | Disposed | (price as of 2026-10-02) |
| Feb. 10, 2021 | DSP | S | 15,000 | $25.00 | $375,000 | 510,000 Indirect | -2.86% | Disposed | -51.0% (price as of 2026-10-02) |
| Feb. 10, 2021 | DSP | M | 15,000 | · | · | 525,000 Indirect | +2.94% | Acquired | (price as of 2026-10-02) |
| Feb. 9, 2021 | DSP | A | 255,000 | · | · | 510,000 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| Feb. 9, 2021 | DSP | A | 255,000 | · | · | 255,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| March 15, 2024 | DSP | Non-qualified Stock Option (Right to Buy) | Class A Common Stock | $9.94 | March 15, 2034 | 60,227 | Acquired |
| March 7, 2023 | DSP | Non-qualified Stock Option (Right to Buy) | Class A Common Stock | $4.44 | March 7, 2033 | 156,406 | Acquired |
| March 15, 2022 | DSP | Non-qualified Stock Option (Right to Buy) | Class A Common Stock | $6.00 | March 15, 2032 | 295,508 | Acquired |
| Feb. 10, 2021 | DSP | Class B Units | Class A Common Stock | $0.00 | · | 15,000 | Disposed |
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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | · | · | $1,977,053 | · | $286,619 | · | · | $2,909,512 |
| 2024 | · | · | $1,207,611 | · | $255,527 | · | · | $2,510,945 |
| 2023 | · | · | $500,000 | · | $242,769 | · | · | $1,888,609 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.