TickerFacts.

A business in context

MGNI research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-12 · 0001411765-26-000011

  2. 8-K · Current report

    Report date 2026-10-07 · 0001193125-26-417011 · Items 1.01,7.01,9.01

  3. 4 · Ownership change

    Report date 2026-10-01 · 0002156224-26-000005

  4. 4 · Ownership change

    Report date 2026-10-01 · 0001778484-26-000010

  5. 8-K · Current report

    Report date 2026-09-21 · 0001595974-26-000032 · Items 5.02,9.01

  6. 4 · Ownership change

    Report date 2026-09-17 · 0001411765-26-000009

  7. 4 · Ownership change

    Report date 2026-09-17 · 0001350876-26-000005

  8. 4 · Ownership change

    Report date 2026-09-14 · 0001966857-26-000015

  9. 4 · Ownership change

    Report date 2026-09-14 · 0001603808-26-000005

  10. 4 · Ownership change

    Report date 2026-09-10 · 0001807986-26-000009

  11. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-053343

  12. 8-K · Current report

    Report date 2026-08-05 · 0001628280-26-053334 · Items 2.02,9.01

  13. 8-K · Current report

    Report date 2026-06-08 · 0001628280-26-042512 · Items 5.07

  14. 8-K · Current report

    Report date 2026-05-06 · 0001595974-26-000023 · Items 2.02,9.01

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001595974-26-000022

  16. DEF 14A · Proxy statement

    Report date 2026-06-08 · 0001999371-26-008635

  17. 8-K · Current report

    Report date 2026-04-20 · 0001595974-26-000016 · Items 5.02,7.01,9.01

  18. 8-K · Current report

    Report date 2026-04-07 · 0001595974-26-000013 · Items 5.02

  19. 8-K · Current report

    Report date 2026-02-25 · 0001595974-26-000010 · Items 2.02,9.01

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001595974-26-000007

  21. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001595974-25-000043

  22. 8-K · Current report

    Report date 2025-11-05 · 0001595974-25-000041 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2025-09-16 · 0001595974-25-000035 · Items 7.01,8.01,9.01

  24. 8-K · Current report

    Report date 2025-08-31 · 0001595974-25-000030 · Items 1.01

  25. 8-K · Current report

    Report date 2025-08-06 · 0001595974-25-000028 · Items 2.02,9.01

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001595974-25-000027

  27. 8-K · Current report

    Report date 2025-06-05 · 0001595974-25-000020 · Items 5.07

  28. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001595974-25-000017

  29. 8-K · Current report

    Report date 2025-05-07 · 0001595974-25-000015 · Items 2.02,9.01

  30. DEF 14A · Proxy statement

    Report date 2025-06-05 · 0001999371-25-004317

  31. 8-K · Current report

    Report date 2025-03-18 · 0001193125-25-056671 · Items 1.01,7.01,9.01

  32. 10-K · Annual report

    Report date 2024-12-31 · 0001595974-25-000008

  33. 8-K · Current report

    Report date 2025-02-26 · 0001595974-25-000006 · Items 2.02,9.01

  34. 8-K · Current report

    Report date 2024-12-11 · 0001595974-24-000045 · Items 5.02

  35. SC 13G/A · Ownership disclosure

    0000950103-24-016193

  36. SC 13G/A · Ownership disclosure

    0000315066-24-002794

  37. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001595974-24-000041

  38. 8-K · Current report

    Report date 2024-11-07 · 0001595974-24-000039 · Items 2.02,9.01

  39. 8-K · Current report

    Report date 2024-09-18 · 0001193125-24-221440 · Items 1.01,7.01,9.01

  40. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001595974-24-000032

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 33 transaction rows33SGrant / award: 0 transaction rows0AExercise / conversion: 14 transaction rows14MTax / exercise payment: 7 transaction rows7FGift: 1 transaction rows1G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

55 matching transaction rows. Showing 1 to 50.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-17
2026-09-18
Caine Paul
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock7500.026.5
2026-09-17
2026-09-18
Knopper Douglas S
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock37337.026.28
2026-09-14
2026-09-16
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1165.024.0
2026-09-14
2026-09-16
Spillane Robert FM · Exercise / conversion
Acquired
Common Stock10363.05.17
2026-09-14
2026-09-16
Spillane Robert FS · Sale
Disposed
Common Stock10363.023.76
2026-09-14
2026-09-16
Spillane Robert FM · Exercise / conversion
Disposed
Stock Option (right to buy)
Derivative security
10363.00.0
2026-09-11
2026-09-11
Evans Katie Seitz
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock13997.024.0
2026-09-10
2026-09-11
Saltz Aaron
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock40000.023.41
2026-09-10
2026-09-11
Caine Paul
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5000.023.53
2026-09-09
2026-09-10
Evans Katie Seitz
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock11100.023.46
2026-09-08
2026-09-10
Evans Katie Seitz
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock13546.05.16
2026-09-08
2026-09-10
Evans Katie Seitz
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock32285.023.63
2026-09-08
2026-09-10
Evans Katie Seitz
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Employee Stock Option (Right to Buy)
Derivative security
13546.00.0
2026-09-02
2026-09-03
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1043.025.0
2026-09-01
2026-09-03
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5371.023.42
2026-08-28
2026-08-28
Harden Sarah Patricia
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock18436.024.0
2026-08-26
2026-08-28
Harden Sarah Patricia
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock30550.023.31
2026-08-18
2026-08-18
Buckley Sean Patrick
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2759.025.0
2026-08-17
2026-08-18
Buckley Sean Patrick
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock8271.024.31
2026-08-15
2026-08-18
Buonasera DavidF · Tax / exercise payment
Disposed
Common Stock8102.024.73
2026-08-15
2026-08-18
Buckley Sean Patrick
10b5-1 checkbox reported
F · Tax / exercise payment
Disposed
Common Stock11715.024.73
2026-08-15
2026-08-18
Saltz AaronF · Tax / exercise payment
Disposed
Common Stock5627.024.73
2026-08-15
2026-08-18
Gephart BrianF · Tax / exercise payment
Disposed
Common Stock3789.024.73
2026-08-15
2026-08-18
Evans Katie SeitzF · Tax / exercise payment
Disposed
Common Stock11204.024.73
2026-08-15
2026-08-18
Day DavidF · Tax / exercise payment
Disposed
Common Stock14170.024.73
2026-08-15
2026-08-18
BARRETT MICHAEL G.F · Tax / exercise payment
Disposed
Common Stock10404.024.73
2026-08-14
2026-08-18
Caine Paul
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock7500.025.0
2026-08-13
2026-08-14
Day DavidG · Gift
Disposed
Common Stock26258.00.0
2026-08-10
2026-08-12
Gephart BrianS · Sale
Disposed
Common Stock12479.024.68
2026-08-10
2026-08-12
Lam RachelS · Sale
Disposed
Common Stock10000.024.16
2026-08-10
2026-08-12
Caine Paul
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5000.024.35
2026-08-06
2026-08-07
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock871.025.0
2026-08-06
2026-08-07
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4176.022.81
2026-08-06
2026-08-07
Buonasera David
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2602.024.0
2026-08-06
2026-08-07
Buckley Sean Patrick
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock28703.013.9
2026-08-06
2026-08-07
Buckley Sean Patrick
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock19237.023.0
2026-08-06
2026-08-07
Buckley Sean Patrick
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock47942.025.09
2026-08-06
2026-08-07
Buckley Sean Patrick
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock Option (right to buy)
Derivative security
28703.00.0
2026-08-06
2026-08-07
Evans Katie Seitz
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock20000.05.16
2026-08-06
2026-08-07
Evans Katie Seitz
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock20000.024.0
2026-08-06
2026-08-07
Evans Katie Seitz
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Employee Stock Option (Right to Buy)
Derivative security
20000.00.0
2026-08-06
2026-08-07
Knopper Douglas S
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock37337.022.72
2026-08-06
2026-08-07
BARRETT MICHAEL G.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock293968.022.72
2026-08-06
2026-08-07
BARRETT MICHAEL G.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock293968.05.8
2026-08-06
2026-08-07
BARRETT MICHAEL G.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock Option (right to buy)
Derivative security
293968.00.0
2026-07-15
2026-07-17
BARRETT MICHAEL G.M · Exercise / conversion
Acquired
Common Stock38596.05.8
2026-07-15
2026-07-17
BARRETT MICHAEL G.S · Sale
Disposed
Common Stock38596.020.35
2026-07-15
2026-07-17
BARRETT MICHAEL G.M · Exercise / conversion
Disposed
Employee Stock Option (Right to Buy)
Derivative security
38596.00.0
2026-07-10
2026-07-14
Caine PaulS · Sale
Disposed
Common Stock5000.020.64
2026-07-07
2026-07-09
Buonasera DavidS · Sale
Disposed
Common Stock1224.021.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001595974MAGNITE, INC.

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
54930018FR2YX1HHSB02
GLEIF legal name
MAGNITE, INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-10-07T16:59:04Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • RUBICON PROJECT, INC. · former SEC name · 2014-01-16 to 2020-06-30
Explore headquarters map ↗

Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$668.17M$717.68M
2023-12-31$619.71M$685.23M
2022-12-31$577.07M$664.28M
2021-12-31$468.41M$582.35M
2020-12-31$221.63M$288.53M
2019-12-31$156.41M$206.13M
2018-12-31$124.69M$167.30M
2017-12-31$155.54M$213.81M

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗