DOSSIER · 13F Holders · Q3 2026

Seagate Technology Holdings PLC

8 institutions still hold Seagate Technology Holdings PLC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G7945M107·8 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$280M
visible holders
Holders
8
filers reporting
Concentration
88.53%
CACTI ASSET MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q3 2026

8 institutions reported Seagate Technology Holdings PLC in Q3 2026. CACTI ASSET MANAGEMENT LLC leads at 88.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
CACTI ASSET MANAGEMENT LLC
CIK 0001452208
$248M272K13.10%Q3 2026
02
BERKSHIRE CAPITAL HOLDINGS INC
CIK 0001133742
$19M20K4.09%Q2 2026
03
Harvest Fund Management Co., Ltd
CIK 0001694126
$8M29K0.30%Q4 2025
04
PARTNERS CAPITAL INVESTMENT GROUP, LLP
CIK 0001694870
$2M2K0.08%Q2 2026
05
Kentucky Retirement Systems
CIK 0001537783
$2M27K0.11%Q1 2026
06
FERGUSON WELLMAN CAPITAL MANAGEMENT, INC
CIK 0000869353
$1M1K0.01%Q3 2026
07
Cascades Capital Asset Management, LLC
CIK 0002035512
$166K1720.06%Q2 2026
08
Joseph Group Capital Management
CIK 0001910383
$64K660.01%Q2 2026