David Day

CIK 1523288 · View on SEC EDGAR ↗

Insider

First SEC filing: April 1, 2014 · Latest: April 1, 2014

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 35 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

35 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 16, 2023 MGNI S 9,078 $8.31 $75,438 415,866 Direct -2.14% Disposed 196.0% (price as of 2026-08-19)
July 11, 2023 MGNI S 10b5-1 9,584 $15.00 $143,760 424,944 Direct -2.21% Disposed 64.0% (price as of 2026-08-19)
June 29, 2023 MGNI S 10b5-1 21,564 $14.00 $301,896 424,944 Direct -4.83% Disposed 75.7% (price as of 2026-08-19)
June 13, 2023 MGNI S 10b5-1 15,304 $13.41 $205,227 446,508 Direct -3.31% Disposed 83.4% (price as of 2026-08-19)
June 12, 2023 MGNI S 10b5-1 1,213 $13.47 $16,339 461,812 Direct -0.26% Disposed 82.6% (price as of 2026-08-19)
May 16, 2023 MGNI S 16,066 $10.88 $174,798 463,025 Direct -3.35% Disposed 126.1% (price as of 2026-08-19)
Aug. 16, 2021 MGNI S 5,177 $26.82 $138,847 268,349 Direct -1.89% Disposed -8.3% (price as of 2026-08-19)
May 17, 2021 MGNI S 35,569 $25.98 $924,083 273,526 Direct -11.51% Disposed -5.3% (price as of 2026-08-19)
April 20, 2016 MGNI S 10b5-1 1,000 $19.90 $19,900 80,506 Direct -1.23% Disposed 23.6% (price as of 2026-08-19)
April 14, 2016 MGNI S 10b5-1 19,000 $19.90 $378,100 80,506 Direct -19.09% Disposed 23.6% (price as of 2026-08-19)
March 15, 2016 MGNI S 10b5-1 10,294 $16.51 $169,954 80,506 Direct -11.34% Disposed 49.0% (price as of 2026-08-19)
March 11, 2016 MGNI S 10b5-1 841 $16.91 $14,221 90,800 Direct -0.92% Disposed 45.5% (price as of 2026-08-19)
Nov. 16, 2015 MGNI S 10b5-1 2,400 $14.74 $35,376 61,641 Direct -3.75% Disposed 66.9% (price as of 2026-08-19)
May 15, 2015 MGNI S 10b5-1 5,200 $17.24 $89,648 38,100 Direct -12.01% Disposed 42.7% (price as of 2026-08-19)
Feb. 25, 2015 MGNI S 10b5-1 15,000 $19.90 $298,500 42,050 Direct -26.29% Disposed 23.6% (price as of 2026-08-19)

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
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
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

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

Date Ticker Security Shares Ownership
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)

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

MGNI

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
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.