13D·WATCH Activist + Insider Intelligence Live feed Blog About Pilot
ISSUER PROFILE · CIK 0001805651 · CUSIP 57064P107

MARKETWISE, INC.MKTW

5 13D/G filings 2 distinct filers 3 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
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Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
5
1 SCHEDULE · 4 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
3
3 buys · 0 sales
Latest short DTC
2.15
as of 2026-05-29

13D/G Filings Timeline · 5 total

FiledFormFilerStakeSharesIntent
2025-02-14 SCHEDULE Greenhaven Road Investment Management, L.P. view →
2024-07-08 SC Stansberry Frank Porter view →
2023-05-03 SC Stansberry Frank Porter view →
2023-03-14 SC Stansberry Frank Porter view →
2022-09-20 SC Greenhaven Road Investment Management, L.P. view →

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-05-18 Stansberry Frank Porter director, 10%+ Buy 3,523 $16.50 $58K
2026-05-18 Stansberry Frank Porter director, 10%+ Buy 100 $16.46 $2K
2026-05-15 Stansberry Frank Porter director, 10%+ Buy 11 $16.71 $184

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 42,600 2.15 +54.5%
2026-05-15 27,576 1.00 +19.9%
2026-04-30 23,006 1.00 +9.4%
2026-04-15 21,030 1.00 -17.6%
2026-03-31 25,509 1.00 -24.7%
2026-03-13 33,872 1.95 +20.4%
2026-02-27 28,122 5.04 +32.4%
2026-02-13 21,243 1.39 +9.9%
2026-01-30 19,334 2.08 -35.7%
2026-01-15 30,056 4.88 +62.3%
2025-12-31 18,525 1.05 -22.6%
2025-12-15 23,939 2.87 -6.0%

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