SCHEDULE Filed 2025-02-28 Event 2025-02-26 SEC 0001818383-25-000029 →

Nonko Eugene → MediaAlpha, Inc. MAX

Stake: 10.80% Shares: 5,996,864 CUSIP: 58450V104 Class: Class A Common Stock, par value $0.01 per share

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 23/100 · Filer 90d Win Rate: 100% · Hist. 90d Edge: +15.3%

Passive Schedule 13G filer baseline
High conviction ownership stake (10.8%)
Held by 1 tracked 13F institutional manager
10 NPORT-P mutual funds holding CUSIP
Short interest building (+13.7% vs prior settlement)

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

55 transactions

0 buys · 39 sales · 8 awards/exercises

Issuer Cluster

4 13D/G filings on this issuer

3 other filings besides this one

Filer Track Record

2 filings by this filer

1 other filing in the data moat

Short Interest · settle 2026-10-15

DTC 2.78

3,219,791 shares short · +13.7% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $243K

Point72 Asset Mgmt

Post-Filing Returns · since 2025-02-26 on MAX

+1 day

+3.5%

+5 days

-0.7%

+30 days

+3.3%

+60 days

-6.4%

+90 days

+15.2%

+180 days

+13.3%

Anchor price 9.05 on closest trading day on/after 2025-02-26. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-10-28	Nonko Eugene	director	Sale	1,940	$11.63	$23K
2026-10-28	Nonko Eugene	director	Sale	7,273	$11.63	$85K
2026-10-27	Nonko Eugene	director	Sale	3,394	$11.92	$40K
2026-10-27	Nonko Eugene	director	Sale	8,283	$11.85	$98K
2026-10-26	Nonko Eugene	director	Sale	1,940	$11.83	$23K
2026-10-26	Nonko Eugene	director	Sale	7,273	$11.83	$86K
2026-10-21	Nonko Eugene	director	Sale	1,940	$11.63	$23K
2026-10-21	Nonko Eugene	director	Sale	7,273	$11.63	$85K
2026-10-20	Nonko Eugene	director	Sale	1,940	$11.62	$23K
2026-10-20	Nonko Eugene	director	Sale	7,273	$11.72	$85K
2026-10-19	Cramer Keith	officer	Sale	12,000	$11.39	$137K
2026-10-19	Nonko Eugene	director	Sale	1,940	$11.39	$22K
2026-10-19	Nonko Eugene	director	Sale	7,273	$11.39	$83K
2026-10-09	Yi Steven	director, officer	Sale	2,033	$11.01	$22K
2026-10-08	Yi Steven	director, officer	Sale	24,000	$10.04	$241K
2026-09-22	Nonko Eugene	director	Sale	1,067	$10.79	$12K
2026-09-22	Nonko Eugene	director	Sale	6,667	$10.78	$72K
2026-09-21	Nonko Eugene	director	Sale	1,067	$10.54	$11K
2026-09-21	Nonko Eugene	director	Sale	6,667	$10.53	$70K
2026-08-17	Cramer Keith	officer	Sale	13,000	$12.76	$166K
2026-08-15	COYNE JEFFREY B	officer	F	2,187	$13.17	$29K
2026-08-15	COYNE JEFFREY B	officer	F	2,542	$13.17	$33K
2026-08-15	COYNE JEFFREY B	officer	F	5,224	$13.17	$69K
2026-08-15	COYNE JEFFREY B	officer	F	4,229	$13.17	$56K
2026-08-15	Thompson Patrick Ryan	officer	F	5,258	$13.17	$69K

Showing 25 of 55

Other 13D/G Filings on MediaAlpha, Inc.

Filed	Form	Filer	Stake	Shares
2026-08-26	SCHEDULE 13D/A	Nonko Eugene	—	—	view →
2024-05-03	SC	WHITE MOUNTAINS INSURANCE GROUP LTD	—	—	view →
2024-01-03	SC	WHITE MOUNTAINS INSURANCE GROUP LTD	—	—	view →

Other Filings by Nonko Eugene

Filed	Form	Issuer	Stake	Shares
2026-08-26	SCHEDULE 13D/A	MediaAlpha, Inc.	—	—	view →

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