SCHEDULE 13D/A Filed 2026-05-15 Event 2026-05-13 SEC 0000947871-26-000556 →

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN → Under Armour, Inc. UA

Stake: — Shares: 45,300,872 Class: Class A Common Stock ("Class A Shares")

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)

10 transactions

7 buys · 0 sales · 0 awards/exercises

Issuer Cluster

2 13D/G filings on this issuer

1 other filing besides this one

Filer Track Record

19 filings by this filer

18 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 9.45

27,312,807 shares short · +7.0% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $6.94M

Point72 Asset Mgmt

Post-Filing Returns · since 2026-05-13 on UA

+1 day

0.0%

+5 days

0.0%

+30 days

0.0%

+60 days

+0.6%

+90 days

—

+180 days

—

Anchor price 6.57 on closest trading day on/after 2026-05-13. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-10-01	Whitesell Patrick	director	Award	5,518.76	—	—
2026-10-01	Sweeney Robert John	director	Award	6,070.64	—	—
2026-08-28	Pestridge Simon James	officer	F	3,679	—	—
2026-05-15	Plank Kevin A	director, officer, 10%+ owner	F	61,636	—	—
2026-05-15	Shadman Mehri	officer	F	23,490	—	—
2026-05-14	Taleghani Reza	officer	Award	957,855	$4.96	$4.75M
2026-05-14	Trent Kara	officer	Award	226,815	—	—
2026-05-14	Curran Shawn	officer	Award	189,013	—	—
2026-05-14	Peake Adam	officer	Award	189,013	—	—
2026-05-14	Aumen Eric J	officer	Award	60,484	—	—

Other 13D/G Filings on Under Armour, Inc.

Filed	Form	Filer	Stake	Shares
2026-10-01	SCHEDULE 13G	Frasers Group plc	—	—	view →

Other Filings by FAIRFAX FINANCIAL HOLDINGS LTD/ CAN

Filed	Form	Issuer	Stake	Shares
2026-08-25	SCHEDULE 13G	EQUINOX GOLD CORP.	—	—	view →
2026-06-16	SCHEDULE 13D/A	Kennedy-Wilson Holdings, Inc.	—	0	view →
2025-09-30	SCHEDULE	BLACKBERRY Ltd BB	6.10%	35,820,891	view →
2023-06-20	SC	Kennedy-Wilson Holdings, Inc. KW	—	—	view →
2022-10-04	SC	Atlas Corp.	—	—	view →
2022-09-27	SC	Atlas Corp.	—	—	view →
2022-08-05	SC	Atlas Corp.	—	—	view →
2022-07-07	SC	Resolute Forest Products Inc.	—	—	view →
2021-08-25	SC	BLACKBERRY Ltd BB	—	—	view →
2021-08-25	SC	Atlas Corp.	—	—	view →
2021-08-25	SC	Resolute Forest Products Inc.	—	—	view →
2021-08-25	SC	Kennedy-Wilson Holdings, Inc. KW	—	—	view →
2021-06-15	SC	Atlas Corp.	—	—	view →
2020-09-02	SC	BLACKBERRY Ltd BB	—	—	view →
2020-03-09	SC	Atlas Corp.	—	—	view →
2019-01-17	SC	Seaspan CORP	—	—	view →
2018-07-18	SC	Seaspan CORP	—	—	view →
2018-04-12	SC	Seaspan CORP	—	—	view →

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