Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 65 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

65 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Aug. 18, 2025 MGNI S 13,366 $23.85 $318,779 382,106 Direct -3.38% Disposed 3.7% (price as of 2026-10-02)
June 30, 2025 MGNI S 10b5-1 21,682 $22.00 $477,004 421,846 Direct -4.89% Disposed 12.4% (price as of 2026-10-02)
June 26, 2025 MGNI S 10b5-1 36,000 $20.95 $754,200 443,528 Direct -7.51% Disposed 18.0% (price as of 2026-10-02)
June 24, 2025 MGNI S 10b5-1 35,000 $19.95 $698,250 443,528 Direct -7.31% Disposed 24.0% (price as of 2026-10-02)
June 18, 2025 MGNI S 10b5-1 38,146 $18.95 $722,867 443,528 Direct -7.92% Disposed 30.5% (price as of 2026-10-02)
Feb. 7, 2025 MGNI S 10b5-1 39,000 $20.00 $780,000 488,506 Direct -7.39% Disposed 23.7% (price as of 2026-10-02)
Feb. 6, 2025 MGNI S 10b5-1 13,245 $18.35 $243,046 488,506 Direct -2.64% Disposed 34.8% (price as of 2026-10-02)
Jan. 3, 2025 MGNI S 10b5-1 13,345 $17.00 $226,865 374,014 Direct -3.45% Disposed 45.5% (price as of 2026-10-02)
Dec. 17, 2024 MGNI S 10b5-1 13,500 $16.32 $220,320 387,359 Direct -3.37% Disposed 51.5% (price as of 2026-10-02)
Dec. 16, 2024 MGNI S 10b5-1 11,644 $16.44 $191,427 400,859 Direct -2.82% Disposed 50.4% (price as of 2026-10-02)
July 15, 2024 MGNI S 10b5-1 19,077 $15.00 $286,155 430,755 Direct -4.24% Disposed 64.9% (price as of 2026-10-02)
June 12, 2024 MGNI S 10b5-1 21,299 $14.01 $298,399 449,832 Direct -4.52% Disposed 76.5% (price as of 2026-10-02)
June 3, 2024 MGNI S 10b5-1 20,732 $13.00 $269,516 471,131 Direct -4.21% Disposed 90.2% (price as of 2026-10-02)
May 16, 2024 MGNI S 10b5-1 19,370 $12.00 $232,440 491,863 Direct -3.79% Disposed 106.1% (price as of 2026-10-02)
Aug. 16, 2023 MGNI S 9,078 $8.31 $75,438 415,866 Direct -2.14% Disposed 197.6% (price as of 2026-10-02)
July 11, 2023 MGNI S 10b5-1 9,584 $15.00 $143,760 424,944 Direct -2.21% Disposed 64.9% (price as of 2026-10-02)
June 29, 2023 MGNI S 10b5-1 21,564 $14.00 $301,896 424,944 Direct -4.83% Disposed 76.6% (price as of 2026-10-02)
June 13, 2023 MGNI S 10b5-1 15,304 $13.41 $205,227 446,508 Direct -3.31% Disposed 84.4% (price as of 2026-10-02)
June 12, 2023 MGNI S 10b5-1 1,213 $13.47 $16,339 461,812 Direct -0.26% Disposed 83.6% (price as of 2026-10-02)
May 16, 2023 MGNI S 16,066 $10.88 $174,798 463,025 Direct -3.35% Disposed 127.3% (price as of 2026-10-02)
Aug. 16, 2021 MGNI S 5,177 $26.82 $138,847 268,349 Direct -1.89% Disposed -7.8% (price as of 2026-10-02)
May 17, 2021 MGNI S 35,569 $25.98 $924,083 273,526 Direct -11.51% Disposed -4.8% (price as of 2026-10-02)
March 25, 2021 MGNI S 10b5-1 10,454 $39.74 $415,442 277,335 Direct -3.63% Disposed -37.8% (price as of 2026-10-02)
March 10, 2021 MGNI S 10b5-1 20,125 $46.99 $945,674 277,335 Direct -6.77% Disposed -47.4% (price as of 2026-10-02)
Feb. 16, 2021 MGNI S 10b5-1 7,372 $60.69 $447,407 277,335 Direct -2.59% Disposed -59.3% (price as of 2026-10-02)
Nov. 30, 2020 MGNI S 10b5-1 12,359 $19.43 $240,135 283,009 Direct -4.18% Disposed 27.3% (price as of 2026-10-02)
Nov. 30, 2020 MGNI S 10b5-1 5,674 $19.45 $110,359 277,335 Direct -2.00% Disposed 27.1% (price as of 2026-10-02)
Nov. 23, 2020 MGNI S 10b5-1 12,795 $15.90 $203,440 295,368 Direct -4.15% Disposed 55.5% (price as of 2026-10-02)
Nov. 20, 2020 MGNI S 10b5-1 12,000 $14.96 $179,520 295,368 Direct -3.90% Disposed 65.3% (price as of 2026-10-02)
Nov. 19, 2020 MGNI S 10b5-1 63,729 $13.73 $874,999 365,969 Direct -14.83% Disposed 80.1% (price as of 2026-10-02)
Nov. 19, 2020 MGNI S 10b5-1 70,601 $12.72 $898,045 295,368 Direct -19.29% Disposed 94.4% (price as of 2026-10-02)
Nov. 16, 2020 MGNI S 16,256 $11.06 $179,791 295,368 Direct -5.22% Disposed 123.6% (price as of 2026-10-02)
Nov. 9, 2020 MGNI S 10b5-1 30,000 $12.23 $366,900 311,624 Direct -8.78% Disposed 102.2% (price as of 2026-10-02)
Nov. 6, 2020 MGNI S 10b5-1 39,399 $11.50 $453,088 311,624 Direct -11.22% Disposed 115.0% (price as of 2026-10-02)
Oct. 13, 2020 MGNI S 10b5-1 13,074 $8.90 $116,359 311,624 Direct -4.03% Disposed 177.9% (price as of 2026-10-02)

Showing latest 100 of 160 transactions

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 9, 2026 MGNI Performance Stock Units Common Stock (72,675) · · 72,675 Disposed
Jan. 1, 2026 MGNI Performance Stock Units Common Stock (44,231) · · 44,231 Acquired
June 26, 2025 MGNI Employee Stock Option (Right to Buy) Common Stock (36,000) $5.28 April 1, 2030 36,000 Disposed
June 24, 2025 MGNI Employee Stock Option (Right to Buy) Common Stock (35,000) $5.28 April 1, 2030 35,000 Disposed
June 18, 2025 MGNI Employee Stock Option (Right to Buy) Common Stock (38,146) $4.92 Feb. 20, 2029 38,146 Disposed
Feb. 7, 2025 MGNI Employee Stock Option (Right to Buy) Common Stock (39,000) $4.92 Feb. 20, 2029 39,000 Disposed
Jan. 9, 2025 MGNI Performance Stock Units Common Stock (43,000) · · 43,000 Acquired
Jan. 2, 2024 MGNI Performance Stock Units Common Stock (57,519) · · 57,519 Acquired
July 11, 2023 MGNI Employee Stock Option (Right to Buy) Common Stock (9,584) $1.97 March 15, 2028 9,584 Disposed
Jan. 1, 2023 MGNI Performance Stock Units Common Stock (57,519) · · 57,519 Acquired
Feb. 1, 2022 MGNI Employee Stock Option (right to buy) Common Stock (68,886) $13.90 Feb. 1, 2032 68,886 Acquired
April 1, 2021 MGNI Employee Stock Option (right to buy) Common Stock (23,634) $42.80 April 1, 2031 23,634 Acquired
March 25, 2021 MGNI Employee Stock Option (Right to Buy) Common Stock (10,454) $1.97 March 15, 2028 10,454 Disposed
March 10, 2021 MGNI Employee Stock Option (Right to Buy) Common Stock (20,125) $4.92 Feb. 20, 2029 20,125 Disposed
Feb. 16, 2021 MGNI Stock Option (right to buy) Common Stock (7,372) $6.06 March 15, 2027 7,372 Disposed
Nov. 23, 2020 MGNI Stock Option (right to buy) Common Stock (12,795) $6.06 March 15, 2027 12,795 Disposed
Nov. 20, 2020 MGNI Stock Option (right to buy) Common Stock (12,000) $6.06 March 15, 2027 12,000 Disposed
Nov. 19, 2020 MGNI Employee Stock Option (Right to Buy) Common Stock (63,729) $4.92 Feb. 20, 2029 63,729 Disposed
Nov. 19, 2020 MGNI Stock Option (right to buy) Common Stock (70,601) $7.80 April 23, 2023 70,601 Disposed
Nov. 9, 2020 MGNI Stock Option (right to buy) Common Stock (30,000) $7.80 April 23, 2023 30,000 Disposed
Nov. 6, 2020 MGNI Stock Option (right to buy) Common Stock (39,399) $7.80 April 23, 2023 39,399 Disposed
Oct. 14, 2020 MGNI Employee Stock Option (Right to Buy) Common Stock (11,779) $1.97 March 15, 2028 11,779 Disposed
June 8, 2020 MGNI Employee Stock Option (Right to Buy) Common Stock (10,000) $1.97 March 15, 2028 10,000 Disposed
April 1, 2020 MGNI Stock Option (right to buy) Common Stock (115,784) $5.28 April 1, 2030 115,784 Acquired
Feb. 20, 2019 MGNI Employee Stock Option (Right to Buy) Common Stock (161,000) $4.92 Feb. 20, 2029 161,000 Acquired
March 15, 2018 MGNI Employee Stock Option (Right to Buy) Common Stock (41,817) $1.97 March 15, 2028 41,817 Acquired
March 15, 2017 MGNI Stock Option (right to buy) Common Stock (32,167) $6.06 March 15, 2027 32,167 Acquired
April 20, 2016 MGNI Stock Option (Right to Buy) Common Stock (1,000) $7.80 April 23, 2023 1,000 Disposed
April 14, 2016 MGNI Stock Option (Right to Buy) Common Stock (19,000) $7.80 April 23, 2023 19,000 Disposed
May 19, 2015 MGNI Stock Option (Right to Buy) Common Stock (9,300) $16.75 May 19, 2025 9,300 Acquired
Feb. 25, 2015 MGNI Employee Stock Option (Right to Buy) Common Stock (15,000) $7.80 April 23, 2023 15,000 Disposed
April 7, 2014 MGNI Stock Option (Right to Buy) Common Stock (175,000) $7.80 April 23, 2023 175,000 Acquired
April 7, 2014 MGNI Stock Option (Right to Buy) Class A Common Stock (175,000) $7.80 April 23, 2023 175,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
April 1, 2014 MGNI Class A Common Stock [F1] 42,050 Direct
April 1, 2014 MGNI Stock Option (Right to Buy)→ Class A Common Stock [F1] (175,000) 175,000 Direct

Compensation (DEF 14A)

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Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $600,000 $21,240 $3,002,571 · $581,040 · $10,635 $4,215,486
2024 $560,000 · $2,160,040 · $424,262 · $10,485 $3,154,787
2023 $560,000 · $2,472,608 · $325,909 · $10,035 $3,368,552

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.