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Seagate Technology Holdings plc 13F holders

1,969 funds reported a position in Seagate Technology Holdings plc in their 13F for the quarter ended 30 June 2026, together 188.1 million shares worth $180.60 billion. Against the quarter before, 520 opened a position, 618 added, 595 trimmed and 68 sold out; together they sold a net 5.5 million shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and State Street Corp.

Funds holding1,969+499 on Q1 2026
Shares they held188.1Mworth $180.60 billion
Net sold on the quarter5.5M sharesabout $5.28 billion at the funds' values
Funds buying to selling1,138 to 663opened or added, to cut or sold
Opened 520Added 618Held 212Trimmed 595Sold out 68
Opened: 520 fundsAdded: 618 fundsHeld: 212 fundsTrimmed: 595 fundsSold out: 68 funds

What each fund did in STX against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 817 funds, 208.6 million shares817Q3 2024Q4 2024: 803 funds, 191.3 million shares803Q4 2024Q1 2025: 798 funds, 198.8 million shares798Q1 2025Q2 2025: 950 funds, 199.8 million shares950Q2 2025Q3 2025: 1,120 funds, 207.3 million shares1,120Q3 2025Q4 2025: 1,277 funds, 194.1 million shares1,277Q4 2025Q1 2026: 1,470 funds, 189.6 million shares1,470Q1 2026Q2 2026: 1,969 funds, 188.1 million shares1,969Q2 2026

Funds reporting a position in STX in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 1,062 reported a position in Seagate Technology Holdings plc: 76 opened one, 390 added, 394 trimmed and 75 sold out, a net 5.1 million shares bought.

FundChange in sharesShares nowStatusFiling
Geode Capital Management, LLC+867,1536,022,588added13F
Deutsche Bank AG-512,3811,079,313trimmed13F
Amundi+282,8951,567,996added13F
DekaBank Deutsche Girozentrale+248,413285,513added13F
Exchange Traded Concepts, LLC+216,0491,368,725added13F
WT Asset Management Ltd-209,622355,094trimmed13F
Mackenzie Financial Corp.+122,870372,339added13F
Barclays PLC+111,881680,215added13F
Dimensional Fund Advisors LP+88,7781,031,307added13F
William Blair Investment Management, LLC+86,143276,990added13F
Swedbank AB+82,881904,984added13F
KBC Group NV-82,23873,216trimmed13F
Swiss Life Asset Management Ltd+76,13476,134new13F
Braun Stacey Associates Inc.+68,31668,316new13F
Aberdeen Group plc+3,554,3423,757,206added13F
Pictet Asset Management Holding SA+64,530203,667added13F
Russell Investments Group, Ltd.+61,404748,798added13F
Calamos Advisors LLC+60,17787,625added13F
M&G PLC+54,220193,721added13F
Bank of New York Mellon Corp+51,2591,337,467added13F
Allspring Global Investments Holdings, LLC+48,549170,689added13F
Mitsubishi UFJ Asset Management Co., Ltd.+44,599614,317added13F
Fideuram Asset Management (Ireland) dac-45,30316,711trimmed13F
Cambridge Investment Research Advisors, Inc.-35,44835,628trimmed13F
GF Fund Management Co. Ltd-34,59387,004trimmed13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 1 reported a position in Seagate Technology Holdings plc in a 13F for the quarter ended 30 September 2026, and 16 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 8.2 million shares worth $7.87 billion, 0.3% of its reported book (its 13F for the quarter ended 30 June 2026). In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 867,153 shares, about $797.8 million at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC8,153,134$7.87 billion0.3%-23,784trimmed30 June 2026, an earlier quarter13F
Geode Capital Management6,022,588$5.54 billion0.3%+867,153added30 September 202613F
Capital Research Global Investors4,326,781$4.18 billion0.6%-1,409,289trimmed30 June 2026, an earlier quarter13F
Norges Bank3,095,723$2.99 billion0.3%held30 June 2026, an earlier quarter13F
Lone Pine Capital1,000,109$965.1 million5.9%+1,000,109new30 June 2026, an earlier quarter13F
Point72 Asset Management822,914$794.1 million1.3%+276,536added30 June 2026, an earlier quarter13F
Citadel Advisors755,495$729.1 million0.4%+644,750added30 June 2026, an earlier quarter13F
Millennium Management633,069$610.9 million0.4%+382,790added30 June 2026, an earlier quarter13F
Renaissance Technologies457,353$441.3 million0.6%+146,859added30 June 2026, an earlier quarter13F
Two Sigma Investments354,816$342.4 million0.3%+252,291added30 June 2026, an earlier quarter13F
Alyeska291,439$281.2 million0.7%+166,354added30 June 2026, an earlier quarter13F
Tiger Global Management285,100$275.1 million1.1%+285,100new30 June 2026, an earlier quarter13F
Bridgewater Associates199,822$192.8 million0.8%-129,295trimmed30 June 2026, an earlier quarter13F
Whale Rock Capital Management148,543$143.3 million1.2%+148,543new30 June 2026, an earlier quarter13F
Duquesne Family Office122,000$117.7 million2.7%+71,300added30 June 2026, an earlier quarter13F
Ratan Capital3,750$3.6 million1.2%+3,750new30 June 2026, an earlier quarter13F
Baillie Gifford40$38,6000.0%+40new30 June 2026, an earlier quarter13F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
BlackRock, Inc.15,166,7938.06%$14.64 billion0.22%+892,71013F
Vanguard Capital Management LLC14,630,0677.78%$14.12 billion0.30%+474,39413F
State Street Corp.9,911,6695.27%$9.57 billion0.28%+590,03713F
FMR LLC8,153,1344.33%$7.87 billion0.34%-23,78413F
Vanguard Portfolio Management LLC7,999,6864.25%$7.72 billion0.35%-3,095,22213F
Invesco Ltd.7,536,8804.01%$7.27 billion0.58%+360,18213F
WCM Investment Management, LLC5,320,4632.83%$5.15 billion9.34%+973,61113F
JPMorgan Chase & Co.5,201,1032.77%$5.04 billion0.29%-1,458,13613F
Geode Capital Management, LLC5,155,4352.74%$4.96 billion0.27%+94,60713F
Morgan Stanley4,720,5242.51%$4.56 billion0.24%-38,78813F
Capital Research Global Investors4,326,7812.30%$4.18 billion0.58%-1,409,28913F
Sanders Capital, LLC3,487,2191.85%$3.37 billion3.37%-9,409,98213F
Goldman Sachs Group Inc.3,440,1061.83%$3.32 billion0.35%-133,68413F
Norges Bank3,095,7231.65%$2.99 billion0.30%13F
Massachusetts Financial Services Co.2,560,2761.36%$2.51 billion0.80%+24,15413F
Wellington Management Group LLP2,414,1361.28%$2.33 billion0.40%+2,326,53813F
Arrowstreet Capital, Limited Partnership2,138,4291.14%$2.06 billion0.92%+704,93413F
Bank of America Corp.2,115,1121.12%$2.04 billion0.13%-1,265,32813F
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main2,108,4021.12%$2.03 billion1.61%-1,511,67013F
Northern Trust Corp.1,902,2411.01%$1.84 billion0.21%+5,24813F
Franklin Resources Inc.1,798,0790.96%$1.74 billion0.38%-1,720,11613F
Jupiter Topco LLC1,608,4360.86%$1.55 billion0.63%first 13F13F
Deutsche Bank AG1,591,6940.85%$1.54 billion0.45%-167,48013F
Legal & General Group Plc1,530,7310.81%$1.48 billion0.31%+16,11413F
Jane Street Group, LLC1,473,8130.78%$1.42 billion0.91%+1,454,11113F
Price T Rowe Associates Inc.1,430,3430.76%$1.38 billion0.14%+171,94613F
D. E. Shaw & Co., Inc.1,354,3770.72%$1.31 billion0.85%+64,80413F
Charles Schwab Investment Management Inc.1,352,0300.72%$1.30 billion0.17%-12,80913F
Bank of New York Mellon Corp1,286,2080.68%$1.24 billion0.20%+227,90513F
Amundi1,285,1010.68%$1.24 billion0.30%+319,53613F
AQR Capital Management LLC1,245,3710.66%$1.20 billion0.42%+244,33213F
Vanguard Fiduciary Trust Co.1,233,7020.66%$1.19 billion0.26%+32,64013F
Exchange Traded Concepts, LLC1,152,6760.61%$1.11 billion5.50%+1,122,60813F
Royal Bank of Canada1,044,9940.56%$1.01 billion0.17%+31,50113F
Capital International Investors1,032,0540.55%$995.9 million0.21%new13F
Lone Pine Capital LLC1,000,1090.53%$965.1 million5.90%new13F
Polar Capital Holdings Plc984,3770.52%$949.9 million2.70%+50,51813F
Dimensional Fund Advisors LP942,5290.50%$909.6 million0.17%+106,51113F
UBS Group AG839,9660.45%$810.6 million0.13%+207,28313F
National Pension Service834,7050.44%$805.5 million0.52%+6,94413F
Point72 Asset Management, L.P.822,9140.44%$794.1 million1.26%+276,53613F
Swedbank AB822,1030.44%$793.3 million0.68%+112,94313F
Citadel Advisors LLC755,4950.40%$729.1 million0.42%+644,75013F
Trivest Advisors Ltd737,7800.39%$712.0 million22.38%+529,78013F
Sands Capital Management, LLC720,7410.38%$695.5 million2.58%+188,84913F
Value Aligned Research Advisors, LLC709,3570.38%$684.5 million4.09%-205,30013F
California Public Employees Retirement System698,1490.37%$673.7 million0.38%+337,75213F
Russell Investments Group, Ltd.687,3940.37%$663.5 million0.58%-279,06713F
Bank of Montreal658,8130.35%$635.8 million0.23%-349,67813F
Canada Pension Plan Investment Board639,7110.34%$617.3 million0.34%-243,86313F
The 50 largest of the 1,969 funds that reported a position in STX in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on STX

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsPuts3,164,700$3.05 billion30 June 202613F
Citadel AdvisorsCalls1,246,600$1.20 billion30 June 202613F
Millennium ManagementCalls236,100$227.8 million30 June 202613F
Millennium ManagementPuts222,100$214.3 million30 June 202613F
Point72 Asset ManagementPuts35,500$34.3 million30 June 202613F
Point72 Asset ManagementCalls27,200$26.2 million30 June 202613F
Two Sigma InvestmentsPuts13,100$12.6 million30 June 202613F
Two Sigma InvestmentsCalls9,800$9.5 million30 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
5 November 202613GFMR LLC and 3 others11.5 million5.1%30 September 2026passive, institutional (13d-1(b))EDGAR
5 August 202613G/ASanders Capital, LLC and 3 others3.5 million1.6%30 June 2026passive, institutional (13d-1(b))EDGAR
31 July 202613G/AVanguard Portfolio Management and 1 other8.0 million3.6%30 June 2026passive, institutional (13d-1(b))EDGAR
30 April 202613GVanguard Capital Management and 1 other16.3 million7.5%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other11.1 million5.1%31 March 2026passive, institutional (13d-1(b))EDGAR
16 April 202613G/ASanders Capital, LLC and 3 others13.0 million6.0%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
31 August 202684$829.76SEC
26 August 2026140$821.67SEC
17 August 2026507$973.44SEC
12 August 2026860$820.52SEC
11 August 20261,826$800.99SEC
7 August 2026227$852.95SEC
3 August 2026253$856.13SEC
29 July 20261$747.30SEC
20 July 20262,038$787.66SEC
17 July 2026116$745.49SEC
16 July 202656$828.30SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 2,038 on 20 July 2026. A fail is an operational fact about settlement, not a position.