AGÕæÈ˹ٷ½

STOCK TITAN

[Form 4] Magnite, Inc. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Magnite, Inc. (MGNI) filed a Form 4 disclosing transactions by President of Operations Katie Seitz Evans. On 06/16/2025 she exercised 20,000 stock options at an exercise price of $3.61 per share, immediately followed by a sale of the same 20,000 common shares at $18.50 per share. The exercise originated from an option grant dated 02/26/2018 that fully vested by February 2022.

Following the transactions, Evans� direct common-stock holdings decreased by 20,000 shares to 442,788. She continues to hold 16,137 vested options with a $3.61 strike price expiring 02/26/2028.

The filing notes that both the exercise and sale were conducted under a Rule 10b5-1 trading plan adopted on 03/06/2025, providing advance notice and reducing interpretative risk around timing. No other derivatives or indirect holdings were reported.

Financial magnitude: gross sale proceeds approximate $370,000 versus an exercise cost of about $72,200, implying a before-tax gain of roughly $298,000. Despite the sale, Evans maintains a sizeable equity stake, representing continued alignment with shareholder interests.

Magnite, Inc. (MGNI) ha presentato un Modulo 4 che rivela le transazioni della Presidentessa delle Operazioni Katie Seitz Evans. Il 16/06/2025 ha esercitato 20.000 opzioni su azioni con un prezzo di esercizio di 3,61 $ per azione, seguito immediatamente dalla vendita delle stesse 20.000 azioni ordinarie a 18,50 $ per azione. L’esercizio deriva da una concessione di opzioni datata 26/02/2018, completamente maturata entro febbraio 2022.

Dopo le transazioni, la posizione diretta in azioni ordinarie di Evans è diminuita di 20.000 azioni, arrivando a 442.788. Continua a detenere 16.137 opzioni maturate con un prezzo di esercizio di 3,61 $ in scadenza il 26/02/2028.

Il documento specifica che sia l’esercizio che la vendita sono stati effettuati nell’ambito di un piano di trading conforme alla Regola 10b5-1 adottato il 06/03/2025, che fornisce preavviso e riduce il rischio interpretativo riguardo al tempismo. Non sono stati riportati altri derivati o partecipazioni indirette.

Dimensione finanziaria: i proventi lordi della vendita si aggirano intorno a 370.000 $ rispetto a un costo di esercizio di circa 72.200 $, implicando un guadagno lordo di circa 298.000 $. Nonostante la vendita, Evans mantiene una significativa partecipazione azionaria, che riflette un continuo allineamento con gli interessi degli azionisti.

Magnite, Inc. (MGNI) presentó un Formulario 4 revelando transacciones realizadas por la Presidenta de Operaciones Katie Seitz Evans. El 16/06/2025 ella ejerció 20,000 opciones sobre acciones a un precio de ejercicio de $3.61 por acción, seguido inmediatamente por una venta de las mismas 20,000 acciones comunes a $18.50 por acción. El ejercicio provino de una concesión de opciones fechada el 26/02/2018 que se consolidó completamente para febrero de 2022.

Tras las transacciones, las participaciones directas en acciones comunes de Evans disminuyeron en 20,000 acciones a 442,788. Ella continúa poseyendo 16,137 opciones consolidadas con un precio de ejercicio de $3.61 que expiran el 26/02/2028.

El informe señala que tanto el ejercicio como la venta se realizaron bajo un plan de negociación conforme a la Regla 10b5-1 adoptado el 06/03/2025, proporcionando aviso previo y reduciendo el riesgo interpretativo sobre el momento. No se reportaron otros derivados ni participaciones indirectas.

Magnitud financiera: los ingresos brutos por la venta aproximan $370,000 frente a un costo de ejercicio de alrededor de $72,200, lo que implica una ganancia antes de impuestos de aproximadamente $298,000. A pesar de la venta, Evans mantiene una participación accionaria considerable, lo que representa una alineación continua con los intereses de los accionistas.

Magnite, Inc. (MGNI)ëŠ� ìš´ì˜ ì´ê´„ ì±…ìž„ìžì¸ Katie Seitz Evansì� 거래 ë‚´ìš©ì� 공개하는 Form 4ë¥� 제출했습니다. 2025ë…� 6ì›� 16ì�, 그녀ëŠ� 주당 행사 ê°€ê²� $3.61ì—� 20,000ì£� 스톡옵션ì� 행사했으ë©�, 즉시 ë™ì¼í•� 20,000ì£� 보통주를 주당 $18.50ì—� 매ë„했습니다. ì� 행사ëŠ� 2018ë…� 2ì›� 26ì¼ì— ë¶€ì—¬ëœ ì˜µì…˜ì—서 시작ë˜ì—ˆìœ¼ë©° 2022ë…� 2월까지 완전íž� ì·¨ë“ë˜ì—ˆìŠµë‹ˆë‹�.

거래 í›� Evansì� ì§ì ‘ 보유 보통ì£� 수는 20,000ì£� ê°ì†Œí•˜ì—¬ 442,788주가 ë˜ì—ˆìŠµë‹ˆë‹�. 그녀ëŠ� 여전íž� 행사 ê°€ê²� $3.61, 만료ì� 2028ë…� 2ì›� 26ì¼ì¸ 16,137ê°œì˜ ì·¨ë“ë� 옵션ì� 보유하고 있습니다.

신고서ì—ëŠ� 행사와 매ë„ê°€ ëª¨ë‘ 2025ë…� 3ì›� 6ì� 채íƒë� Rule 10b5-1 거래 계íšì—� ë”°ë¼ ì´ë£¨ì–´ì¡Œìœ¼ë©°, 사전 통지와 타ì´ë° ê´€ë � í•´ì„ ìœ„í—˜ì� 줄였다고 명시ë˜ì–´ 있습니다. 다른 파ìƒìƒí’ˆì´ë‚˜ ê°„ì ‘ 보유ëŠ� ë³´ê³ ë˜ì§€ 않았습니ë‹�.

재무 규모: ë§¤ë„ ì´� 수ìµì€ ì•� $370,000ì´ë©° 행사 ë¹„ìš©ì€ ì•� $72,200ë¡�, 세전 ì´ìµì€ ì•� $298,000ì—� 달합니다. 매ë„ì—ë„ ë¶ˆêµ¬í•˜ê³  EvansëŠ� ìƒë‹¹í•� ì§€ë¶„ì„ ìœ ì§€í•˜ì—¬ 주주 ì´ìµê³¼ì˜ ì§€ì†ì ì� ì •ë ¬ì� ë³´ì—¬ì¤ë‹ˆë‹�.

Magnite, Inc. (MGNI) a déposé un formulaire 4 révélant des transactions effectuées par la présidente des opérations, Katie Seitz Evans. Le 16/06/2025, elle a exercé 20 000 options d’achat d’actions à un prix d’exercice de 3,61 $ par action, immédiatement suivies par une vente des mêmes 20 000 actions ordinaires à 18,50 $ par action. L’exercice provient d’une attribution d’options datée du 26/02/2018, entièrement acquise en février 2022.

Suite à ces transactions, la détention directe d’actions ordinaires d’Evans a diminué de 20 000 actions pour atteindre 442 788. Elle détient toujours 16 137 options acquises avec un prix d’exercice de 3,61 $ expirant le 26/02/2028.

Le dépôt précise que l’exercice et la vente ont été réalisés dans le cadre d’un plan de négociation conforme à la règle 10b5-1 adopté le 06/03/2025, offrant un préavis et réduisant le risque d’interprétation lié au calendrier. Aucune autre position dérivée ou indirecte n’a été signalée.

Montant financier : le produit brut de la vente est d’environ 370 000 $ contre un coût d’exercice d’environ 72 200 $, ce qui implique un gain avant impôts d’environ 298 000 $. Malgré la vente, Evans conserve une participation importante, témoignant d’un alignement continu avec les intérêts des actionnaires.

Magnite, Inc. (MGNI) hat ein Formular 4 eingereicht, das Transaktionen von Katie Seitz Evans, Präsidentin der Betriebsabteilung, offenlegt. Am 16.06.2025 hat sie 20.000 Aktienoptionen ausgeübt zu einem Ausübungspreis von 3,61 $ pro Aktie, gefolgt von einem sofortigen Verkauf derselben 20.000 Stammaktien zu 18,50 $ pro Aktie. Die Ausübung stammt aus einer Optionszuteilung vom 26.02.2018, die bis Februar 2022 vollständig unverfallbar war.

Nach den Transaktionen verringerte sich Evans� direkter Stammaktienbestand um 20.000 Aktien auf 442.788. Sie hält weiterhin 16.137 unverfallbare Optionen mit einem Ausübungspreis von 3,61 $, die am 26.02.2028 verfallen.

Die Einreichung weist darauf hin, dass sowohl die Ausübung als auch der Verkauf unter einem Handelsplan gemäß Regel 10b5-1, der am 06.03.2025 angenommen wurde, durchgeführt wurden, was eine Vorabinformation bietet und das Interpretationsrisiko bezüglich des Timings verringert. Es wurden keine weiteren Derivate oder indirekten Beteiligungen gemeldet.

Finanzielle Größenordnung: Die Bruttoverkaufserlöse belaufen sich auf etwa 370.000 $ bei Ausübungskosten von rund 72.200 $, was einen Vorsteuergewinn von etwa 298.000 $ impliziert. Trotz des Verkaufs behält Evans eine beträchtliche Aktienbeteiligung, was eine fortgesetzte Ausrichtung an den Interessen der Aktionäre zeigt.

Positive
  • Executive retains 442,788 shares, maintaining significant equity alignment with shareholders.
  • Transactions executed under a Rule 10b5-1 plan, demonstrating strong governance and reduced insider-timing risk.
Negative
  • Sale of 20,000 shares at $18.50 represents insider monetisation of roughly $370k, which some investors may perceive as a mildly negative signal.

Insights

TL;DR � 20k-share insider sale via 10b5-1; holdings remain large, signalling limited directional insight.

The transaction is a routine option exercise and share sale, common for executives managing liquidity and taxes. Proceeds of ~$370k are modest relative to Magnite’s daily trading volume and Evans� residual 443k-share position. Because the sale was pre-scheduled under a Rule 10b5-1 plan adopted three months prior, it reduces the informational value for timing the stock. Overall impact on valuation or sentiment should be minimal.

TL;DR � Pre-planned trade aligns with governance best practices; no red flags detected.

The 10b5-1 plan indicates proactive compliance, and full disclosure of option vesting terms meets transparency standards. Evans� remaining 16,137 options and 442,788 shares demonstrate continued ownership alignment. The exercise price far below market suggests historical compensation value but does not, by itself, raise governance concerns. Therefore, the filing is operationally routine and not materially impactful.

Magnite, Inc. (MGNI) ha presentato un Modulo 4 che rivela le transazioni della Presidentessa delle Operazioni Katie Seitz Evans. Il 16/06/2025 ha esercitato 20.000 opzioni su azioni con un prezzo di esercizio di 3,61 $ per azione, seguito immediatamente dalla vendita delle stesse 20.000 azioni ordinarie a 18,50 $ per azione. L’esercizio deriva da una concessione di opzioni datata 26/02/2018, completamente maturata entro febbraio 2022.

Dopo le transazioni, la posizione diretta in azioni ordinarie di Evans è diminuita di 20.000 azioni, arrivando a 442.788. Continua a detenere 16.137 opzioni maturate con un prezzo di esercizio di 3,61 $ in scadenza il 26/02/2028.

Il documento specifica che sia l’esercizio che la vendita sono stati effettuati nell’ambito di un piano di trading conforme alla Regola 10b5-1 adottato il 06/03/2025, che fornisce preavviso e riduce il rischio interpretativo riguardo al tempismo. Non sono stati riportati altri derivati o partecipazioni indirette.

Dimensione finanziaria: i proventi lordi della vendita si aggirano intorno a 370.000 $ rispetto a un costo di esercizio di circa 72.200 $, implicando un guadagno lordo di circa 298.000 $. Nonostante la vendita, Evans mantiene una significativa partecipazione azionaria, che riflette un continuo allineamento con gli interessi degli azionisti.

Magnite, Inc. (MGNI) presentó un Formulario 4 revelando transacciones realizadas por la Presidenta de Operaciones Katie Seitz Evans. El 16/06/2025 ella ejerció 20,000 opciones sobre acciones a un precio de ejercicio de $3.61 por acción, seguido inmediatamente por una venta de las mismas 20,000 acciones comunes a $18.50 por acción. El ejercicio provino de una concesión de opciones fechada el 26/02/2018 que se consolidó completamente para febrero de 2022.

Tras las transacciones, las participaciones directas en acciones comunes de Evans disminuyeron en 20,000 acciones a 442,788. Ella continúa poseyendo 16,137 opciones consolidadas con un precio de ejercicio de $3.61 que expiran el 26/02/2028.

El informe señala que tanto el ejercicio como la venta se realizaron bajo un plan de negociación conforme a la Regla 10b5-1 adoptado el 06/03/2025, proporcionando aviso previo y reduciendo el riesgo interpretativo sobre el momento. No se reportaron otros derivados ni participaciones indirectas.

Magnitud financiera: los ingresos brutos por la venta aproximan $370,000 frente a un costo de ejercicio de alrededor de $72,200, lo que implica una ganancia antes de impuestos de aproximadamente $298,000. A pesar de la venta, Evans mantiene una participación accionaria considerable, lo que representa una alineación continua con los intereses de los accionistas.

Magnite, Inc. (MGNI)ëŠ� ìš´ì˜ ì´ê´„ ì±…ìž„ìžì¸ Katie Seitz Evansì� 거래 ë‚´ìš©ì� 공개하는 Form 4ë¥� 제출했습니다. 2025ë…� 6ì›� 16ì�, 그녀ëŠ� 주당 행사 ê°€ê²� $3.61ì—� 20,000ì£� 스톡옵션ì� 행사했으ë©�, 즉시 ë™ì¼í•� 20,000ì£� 보통주를 주당 $18.50ì—� 매ë„했습니다. ì� 행사ëŠ� 2018ë…� 2ì›� 26ì¼ì— ë¶€ì—¬ëœ ì˜µì…˜ì—서 시작ë˜ì—ˆìœ¼ë©° 2022ë…� 2월까지 완전íž� ì·¨ë“ë˜ì—ˆìŠµë‹ˆë‹�.

거래 í›� Evansì� ì§ì ‘ 보유 보통ì£� 수는 20,000ì£� ê°ì†Œí•˜ì—¬ 442,788주가 ë˜ì—ˆìŠµë‹ˆë‹�. 그녀ëŠ� 여전íž� 행사 ê°€ê²� $3.61, 만료ì� 2028ë…� 2ì›� 26ì¼ì¸ 16,137ê°œì˜ ì·¨ë“ë� 옵션ì� 보유하고 있습니다.

신고서ì—ëŠ� 행사와 매ë„ê°€ ëª¨ë‘ 2025ë…� 3ì›� 6ì� 채íƒë� Rule 10b5-1 거래 계íšì—� ë”°ë¼ ì´ë£¨ì–´ì¡Œìœ¼ë©°, 사전 통지와 타ì´ë° ê´€ë � í•´ì„ ìœ„í—˜ì� 줄였다고 명시ë˜ì–´ 있습니다. 다른 파ìƒìƒí’ˆì´ë‚˜ ê°„ì ‘ 보유ëŠ� ë³´ê³ ë˜ì§€ 않았습니ë‹�.

재무 규모: ë§¤ë„ ì´� 수ìµì€ ì•� $370,000ì´ë©° 행사 ë¹„ìš©ì€ ì•� $72,200ë¡�, 세전 ì´ìµì€ ì•� $298,000ì—� 달합니다. 매ë„ì—ë„ ë¶ˆêµ¬í•˜ê³  EvansëŠ� ìƒë‹¹í•� ì§€ë¶„ì„ ìœ ì§€í•˜ì—¬ 주주 ì´ìµê³¼ì˜ ì§€ì†ì ì� ì •ë ¬ì� ë³´ì—¬ì¤ë‹ˆë‹�.

Magnite, Inc. (MGNI) a déposé un formulaire 4 révélant des transactions effectuées par la présidente des opérations, Katie Seitz Evans. Le 16/06/2025, elle a exercé 20 000 options d’achat d’actions à un prix d’exercice de 3,61 $ par action, immédiatement suivies par une vente des mêmes 20 000 actions ordinaires à 18,50 $ par action. L’exercice provient d’une attribution d’options datée du 26/02/2018, entièrement acquise en février 2022.

Suite à ces transactions, la détention directe d’actions ordinaires d’Evans a diminué de 20 000 actions pour atteindre 442 788. Elle détient toujours 16 137 options acquises avec un prix d’exercice de 3,61 $ expirant le 26/02/2028.

Le dépôt précise que l’exercice et la vente ont été réalisés dans le cadre d’un plan de négociation conforme à la règle 10b5-1 adopté le 06/03/2025, offrant un préavis et réduisant le risque d’interprétation lié au calendrier. Aucune autre position dérivée ou indirecte n’a été signalée.

Montant financier : le produit brut de la vente est d’environ 370 000 $ contre un coût d’exercice d’environ 72 200 $, ce qui implique un gain avant impôts d’environ 298 000 $. Malgré la vente, Evans conserve une participation importante, témoignant d’un alignement continu avec les intérêts des actionnaires.

Magnite, Inc. (MGNI) hat ein Formular 4 eingereicht, das Transaktionen von Katie Seitz Evans, Präsidentin der Betriebsabteilung, offenlegt. Am 16.06.2025 hat sie 20.000 Aktienoptionen ausgeübt zu einem Ausübungspreis von 3,61 $ pro Aktie, gefolgt von einem sofortigen Verkauf derselben 20.000 Stammaktien zu 18,50 $ pro Aktie. Die Ausübung stammt aus einer Optionszuteilung vom 26.02.2018, die bis Februar 2022 vollständig unverfallbar war.

Nach den Transaktionen verringerte sich Evans� direkter Stammaktienbestand um 20.000 Aktien auf 442.788. Sie hält weiterhin 16.137 unverfallbare Optionen mit einem Ausübungspreis von 3,61 $, die am 26.02.2028 verfallen.

Die Einreichung weist darauf hin, dass sowohl die Ausübung als auch der Verkauf unter einem Handelsplan gemäß Regel 10b5-1, der am 06.03.2025 angenommen wurde, durchgeführt wurden, was eine Vorabinformation bietet und das Interpretationsrisiko bezüglich des Timings verringert. Es wurden keine weiteren Derivate oder indirekten Beteiligungen gemeldet.

Finanzielle Größenordnung: Die Bruttoverkaufserlöse belaufen sich auf etwa 370.000 $ bei Ausübungskosten von rund 72.200 $, was einen Vorsteuergewinn von etwa 298.000 $ impliziert. Trotz des Verkaufs behält Evans eine beträchtliche Aktienbeteiligung, was eine fortgesetzte Ausrichtung an den Interessen der Aktionäre zeigt.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Evans Katie Seitz

(Last) (First) (Middle)
C/O MAGNITE, INC.
1250 BROADWAY, 15TH FLOOR

(Street)
NEW YORK NY 10001

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MAGNITE, INC. [ MGNI ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
President, Operations
3. Date of Earliest Transaction (Month/Day/Year)
06/16/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/16/2025 M(1) 20,000 A $3.61 462,788 D
Common Stock 06/16/2025 S(1) 20,000 D $18.5 442,788 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $3.61 06/16/2025 M(1) 20,000 (2) 02/26/2028 Common Stock 20,000 $0(3) 16,137 D
Explanation of Responses:
1. This exercise and subsequent sales were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025.
2. 25% of the total number of shares underlying this option vested on February 14, 2019 and the remaining shares vested 1/36 per month over the next 36 months thereafter.
3. Granted as compensation for services.
/s/ Aaron Saltz, attorney-in-fact 06/18/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many Magnite (MGNI) shares did Katie Seitz Evans sell?

She sold 20,000 common shares on 06/16/2025 at $18.50 each.

What was the exercise price of the options used in the Form 4 filing?

The options were exercised at $3.61 per share.

Does Evans still hold Magnite shares after the sale?

Yes, she continues to hold 442,788 shares directly plus 16,137 vested options.

Was the transaction executed under a 10b5-1 trading plan?

Yes. The filing states the plan was adopted on 03/06/2025.

What is the total value of shares sold according to the Form 4?

Gross proceeds are approximately $370,000 (20,000 shares × $18.50).
Magnite Inc

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