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Institutional Ownership · SEC Form 13F

Who owns OPTU


Which tracked institutional funds hold OPTU, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OPTU company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

185
Institutional holders
219M
Shares held (tracked funds)

How the tape is positioned

35 tracked funds added or opened OPTU while 37 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

OPTU’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes OPTU more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in OPTU divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 185 tracked filers holding OPTU, 115 increased or opened the position and 90 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in OPTU between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 9

  • BALYASNY ASSET MANAGEMENT L.P.$8M
  • Ursa Fund Management, LLC$2M
  • Clear Street Group Inc.$1M
  • Quinn Opportunity Partners LLC$1M
  • Caption Management, LLC$886K
  • Converium Capital Inc.$843K

Full exits 16

  • Hudson Bay Capital Management LP$14M
  • OAKTREE CAPITAL MANAGEMENT LP$10M
  • CARRONADE CAPITAL MANAGEMENT, LP$9M
  • Apollo Management Holdings, L.P.$8M
  • CastleKnight Management LP$7M
  • LOOMIS SAYLES & CO L P$7M

Largest adds

  • Kite Lake Capital Management (UK) LLP$17M
  • MILFAM LLC$12M
  • BW Gestao de Investimentos Ltda.$10M
  • BARCLAYS PLC$5M
  • AQR CAPITAL MANAGEMENT LLC$5M
  • Senator Investment Group LP$5M

Largest trims

  • Empyrean Capital Partners, LP$26M
  • DEUTSCHE BANK AG\$19M
  • D. E. Shaw & Co., Inc.$10M
  • GOLDMAN SACHS GROUP INC$10M
  • NOMURA HOLDINGS INC$7M
  • KING STREET CAPITAL MANAGEMENT, L.P.$6M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed19,543,542$28M9.4%2026-Q2
MILFAM LLC added15,920,494$23M7.7%2026-Q2
Kite Lake Capital Management (UK) LLP added14,100,000$20M6.8%2026-Q2
Empyrean Capital Partners, LP trimmed14,039,012$6M2.1%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC added12,127,418$18M5.9%2026-Q2
JPMORGAN CHASE & CO trimmed8,893,189$14M4.5%2026-Q2
BW Gestao de Investimentos Ltda. added8,395,938$12M4.1%2026-Q2
Senator Investment Group LP added8,000,000$12M3.9%2026-Q2
MILLENNIUM MANAGEMENT LLC trimmed7,723,322$11M3.7%2026-Q2
STATE STREET CORP added7,309,337$11M3.5%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added6,906,316$10M3.3%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed5,478,453$8M2.6%2026-Q2
BALYASNY ASSET MANAGEMENT L.P. added5,405,637$8M2.6%2026-Q2
REDWOOD CAPITAL MANAGEMENT, LLC trimmed5,189,270$8M2.5%2026-Q2
AQR CAPITAL MANAGEMENT LLC added5,008,479$7M2.4%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC trimmed4,776,118$7M2.3%2026-Q2
RENAISSANCE TECHNOLOGIES LLC added3,976,900$6M1.9%2026-Q2
Mount Capital Ltd3,889,664$6M1.9%2026-Q2
BARCLAYS PLC added3,753,855$5M1.8%2026-Q2
CITADEL ADVISORS LLC added3,634,624$5M1.8%2026-Q2
ARES MANAGEMENT LLC3,547,478$5M1.7%2026-Q2
Cerberus Capital Management, L.P. trimmed3,340,785$5M1.6%2026-Q2
KING STREET CAPITAL MANAGEMENT, L.P. trimmed3,125,000$5M1.5%2026-Q2
SUSQUEHANNA INTERNATIONAL GROUP, LLP added2,869,168$4M1.4%2026-Q2
NORTHERN TRUST CORP added2,674,632$4M1.3%2026-Q2
Helix Partners Management LP added2,520,000$4M1.2%2026-Q2
Taconic Capital Advisors LP added2,271,365$3M1.1%2026-Q2
Point72 Asset Management, L.P. trimmed2,144,488$3M1.0%2026-Q2
NOMURA HOLDINGS INC trimmed1,974,690$3M1.0%2026-Q2
VANGUARD FIDUCIARY TRUST CO added1,804,087$3M0.9%2026-Q2
Ursa Fund Management, LLC new1,407,850$2M0.7%2026-Q2
ALGERT GLOBAL LLC added1,143,014$2M0.6%2026-Q2
MHR FUND MANAGEMENT LLC1,070,800$2M0.5%2026-Q2
UBS Group AG added1,054,580$2M0.5%2026-Q2
HG Vora Capital Management, LLC trimmed1,001,744$1M0.5%2026-Q2
Clear Street Group Inc. new1,000,000$1M0.5%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed965,895$1M0.5%2026-Q2
GOLDMAN SACHS GROUP INC trimmed847,005$1M0.4%2026-Q2
Quinn Opportunity Partners LLC new703,592$1M0.3%2026-Q2
Bank of New York Mellon Corp trimmed670,393$972K0.3%2026-Q2
JANE STREET GROUP, LLC added641,354$930K0.3%2026-Q2
Caption Management, LLC new611,170$886K0.3%2026-Q2
Nuveen, LLC added601,005$871K0.3%2026-Q2
Converium Capital Inc. new581,302$843K0.3%2026-Q2
DIMENSIONAL FUND ADVISORS LP trimmed572,042$830K0.3%2026-Q2
IEQ CAPITAL, LLC added534,137$774K0.3%2026-Q2
Swiss National Bank added533,500$774K0.3%2026-Q2
D. E. Shaw & Co., Inc. trimmed530,505$769K0.3%2026-Q2
EJF Capital LP new500,000$725K0.2%2026-Q2
Cable Car Capital, LP new500,000$725K0.2%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed486,363$705K0.2%2026-Q2
WOLVERINE ASSET MANAGEMENT LLC475,441$689K0.2%2026-Q2
Cerity Partners LLC added433,898$629K0.2%2026-Q2
DEUTSCHE BANK AG\ trimmed421,917$612K0.2%2026-Q2
FEDERATED HERMES, INC. trimmed392,256$569K0.2%2026-Q2
ALLSTATE CORP new386,198$560K0.2%2026-Q2
RHUMBLINE ADVISERS added368,097$534K0.2%2026-Q2
Invesco Ltd. trimmed355,369$515K0.2%2026-Q2
PEAK6 LLC trimmed343,193$498K0.2%2026-Q2
AlTi Global, Inc. added341,971$496K0.2%2026-Q2
XTX Topco Ltd added326,671$474K0.2%2026-Q2
Schonfeld Strategic Advisors LLC new300,000$435K0.1%2026-Q2
MORGAN STANLEY trimmed291,902$423K0.1%2026-Q2
BLUEFIN CAPITAL MANAGEMENT, LLC new285,596$414K0.1%2026-Q2
Corient Private Wealth LP added278,520$404K0.1%2026-Q2
Engineers Gate Manager LP added266,771$387K0.1%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added253,677$368K0.1%2026-Q2
WELLS FARGO & COMPANY/MN added248,322$360K0.1%2026-Q2
ALLIANCEBERNSTEIN L.P.236,500$307K0.1%2026-Q2
EQUITEC PROPRIETARY MARKETS, LLC new213,800$310K0.1%2026-Q2
683 Capital Management, LLC203,108$295K0.1%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/195,452$284K0.1%2026-Q2
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added194,111$175K0.1%2026-Q2
Mariner, LLC added192,251$279K0.1%2026-Q2
Man Group plc added181,574$263K0.1%2026-Q2
Legal & General Group Plc trimmed174,663$252K0.1%2026-Q2
Quarry LP new170,119$247K0.1%2026-Q2
HSBC HOLDINGS PLC added162,291$233K0.1%2026-Q2
READYSTATE ASSET MANAGEMENT LP trimmed158,210$229K0.1%2026-Q2
CITIGROUP INC added150,798$219K0.1%2026-Q2
PRELUDE CAPITAL MANAGEMENT, LLC new150,000$218K0.1%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd149,253$216K0.1%2026-Q2
MetLife Investment Management, LLC added148,175$215K0.1%2026-Q2
Russell Investments Group, Ltd. added127,472$185K0.1%2026-Q2
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed122,763$178K0.1%2026-Q2
Zurcher Kantonalbank (Zurich Cantonalbank)119,001$173K0.1%2026-Q2
Lido Advisors, LLC added113,691$165K0.1%2026-Q2
MACKENZIE FINANCIAL CORP trimmed110,268$160K0.1%2026-Q2
DoubleLine ETF Adviser LP added109,533$159K0.1%2026-Q2
MERCER GLOBAL ADVISORS INC /ADV added104,935$152K0.1%2026-Q2
KLP KAPITALFORVALTNING AS104,300$151K0.1%2026-Q2
Creative Planning added102,020$148K0.0%2026-Q2
Vanguard Global Advisers, LLC100,168$145K0.0%2026-Q2
Warberg Asset Management LLC new99,090$144K0.0%2026-Q2
Jupiter Topco LLC new94,299$136K0.0%2026-Q2
Verition Fund Management LLC added91,040$132K0.0%2026-Q2
Calamos Advisors LLC82,405$119K0.0%2026-Q2
MANUFACTURERS LIFE INSURANCE COMPANY, THE added76,249$111K0.0%2026-Q2
Pallas Capital Advisors LLC added75,215$109K0.0%2026-Q2
ARIZONA STATE RETIREMENT SYSTEM added73,358$106K0.0%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership