VALUEACT CAPITAL MASTER FUND B, L.P.

PrivateCIK: 1759805

Location

SAN FRANCISCO, CA

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jun 12, 2026·Jun 12, 2026

-4

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jun 11, 2026·Jun 11, 2026

5 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jun 10, 2026·Jun 10, 2026

-3

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

May 14, 2026·May 14, 2026

-2

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

May 13, 2026·May 13, 2026

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Mar 12, 2026·Mar 12, 2026

2 txn

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Mar 11, 2026·Mar 11, 2026

4 txn

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Feb 23, 2026·Feb 23, 2026

2 txn

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Feb 2, 2026·Feb 2, 2026

5 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jan 29, 2026·Jan 29, 2026

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jan 14, 2026·Jan 14, 2026

5 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Jan 12, 2026·Jan 12, 2026

-5

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Dec 12, 2025·Dec 12, 2025

7 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Dec 11, 2025·Dec 11, 2025

-4

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Dec 11, 2025·Dec 11, 2025

4 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 12, 2025·Nov 12, 2025

-5

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 12, 2025·Nov 12, 2025

5 txn

TEH BAN SENG

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 5, 2025·Nov 5, 2025

-5

TILENIUS STEPHANIE

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 5, 2025·Nov 5, 2025

1 txn

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 5, 2025·Nov 5, 2025

1 txn

TILENIUS STEPHANIE

144

→SEAGATE TECHNOLOGY HOLDINGS PLC

Nov 3, 2025·Nov 3, 2025

TILENIUS STEPHANIE

→SEAGATE TECHNOLOGY HOLDINGS PLC

Oct 28, 2025·Oct 28, 2025

1 txn

SZLOSEK THOMAS A

→SEAGATE TECHNOLOGY HOLDINGS PLC

Oct 28, 2025·Oct 28, 2025

1 txn

TILENIUS STEPHANIE

→SEAGATE TECHNOLOGY HOLDINGS PLC

Oct 21, 2025·Oct 21, 2025

3 txn

TEH BAN SENG

→SEAGATE TECHNOLOGY HOLDINGS PLC

Oct 15, 2025·Oct 15, 2025

5 txn

Page 1 of 7 · 157 total

Filer	Form	Target	Filed	Activity
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jun 12, 2026 Jun 12, 2026	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jun 11, 2026 Jun 11, 2026	5txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jun 10, 2026 Jun 10, 2026	—
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	May 14, 2026 May 14, 2026	—
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	May 13, 2026 May 13, 2026	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Mar 12, 2026 Mar 12, 2026	2txn
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Mar 11, 2026 Mar 11, 2026	4txn
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Feb 23, 2026 Feb 23, 2026	2txn
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Feb 2, 2026 Feb 2, 2026	5txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jan 29, 2026 Jan 29, 2026	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jan 14, 2026 Jan 14, 2026	5txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Jan 12, 2026 Jan 12, 2026	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Dec 12, 2025 Dec 12, 2025	7txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Dec 11, 2025 Dec 11, 2025	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Dec 11, 2025 Dec 11, 2025	4txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 12, 2025 Nov 12, 2025	—
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 12, 2025 Nov 12, 2025	5txn
TEH BAN SENGCIK · 1801425	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 5, 2025 Nov 5, 2025	—
TILENIUS STEPHANIECIK · 1534995	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 5, 2025 Nov 5, 2025	1txn
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 5, 2025 Nov 5, 2025	1txn
TILENIUS STEPHANIECIK · 1534995	144 Sale	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Nov 3, 2025 Nov 3, 2025	—
TILENIUS STEPHANIECIK · 1534995	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Oct 28, 2025 Oct 28, 2025	1txn
SZLOSEK THOMAS ACIK · 1293167	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Oct 28, 2025 Oct 28, 2025	1txn
TILENIUS STEPHANIECIK · 1534995	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Oct 21, 2025 Oct 21, 2025	3txn
TEH BAN SENGCIK · 1801425	4 Trade	SEAGATE TECHNOLOGY HOLDINGS PLCCIK · 1137789	Oct 15, 2025 Oct 15, 2025	5txn

Page 1 of 7 · 157 total