Robert J Frankenberg
CIK 1183579 · View on SEC EDGAR ↗
Insider
First SEC filing: April 11, 2014 · Latest: April 11, 2014
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 15 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 14, 2023 | MGNI | A | 13,743 | — | — | 119,090 Direct | +13.05% | Acquired | (price as of 2026-08-19) |
| June 7, 2022 | MGNI | A | 16,489 | — | — | 105,347 Direct | +18.56% | Acquired | (price as of 2026-08-19) |
| June 28, 2021 | MGNI | A | 3,936 | — | — | 88,858 Direct | +4.63% | Acquired | (price as of 2026-08-19) |
| May 13, 2015 | MGNI | A | 11,759 | — | — | 11,759 Direct | — | Acquired | (price as of 2026-08-19) |
| May 13, 2015 | MGNI | A | 4,886 | — | — | 26,169 Direct | +22.96% | Acquired | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 13,208 | — | — | 13,208 Direct | — | Acquired | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 13,208 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 29,184 | — | — | 29,184 Direct | — | Acquired | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 29,184 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 21,283 | — | — | 21,283 Direct | — | Acquired | (price as of 2026-08-19) |
| April 7, 2014 | MGNI | J | 21,283 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 1, 2014 | MGNI | A | 13,208 | — | — | 13,208 Direct | — | Acquired | (price as of 2026-08-19) |
| April 1, 2014 | MGNI | A | 29,184 | — | — | 29,184 Direct | — | Acquired | (price as of 2026-08-19) |
| April 1, 2014 | MGNI | A | 6,283 | — | — | 21,283 Direct | +41.89% | Acquired | (price as of 2026-08-19) |
| April 1, 2014 | MGNI | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| May 13, 2015 | MGNI | Stock Option (right to buy) | Common Stock (11,759) | $17.91 | May 13, 2025 | 11,759 | Acquired |
| April 7, 2014 | MGNI | Stock Option (Right to Buy) | Common Stock (13,208) | $15.00 | April 1, 2024 | 13,208 | Acquired |
| April 7, 2014 | MGNI | Stock Option (Right to Buy) | Class A Common Stock (13,208) | $15.00 | April 1, 2024 | 13,208 | Disposed |
| April 7, 2014 | MGNI | Stock Option (Right to Buy) | Common Stock (29,184) | $15.00 | April 1, 2024 | 29,184 | Acquired |
| April 7, 2014 | MGNI | Stock Option (Right to Buy) | Class A Common Stock (29,184) | $15.00 | April 1, 2024 | 29,184 | Disposed |
| April 1, 2014 | MGNI | Stock Option (Right to Buy) | Class A Common Stock (13,208) | $15.00 | April 1, 2024 | 13,208 | Acquired |
| April 1, 2014 | MGNI | Stock Option (Right to Buy) | Class A Common Stock (29,184) | $15.00 | April 1, 2024 | 29,184 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 11, 2014 | MGNI | Common Stock | 0 | Direct |