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Institutional Ownership · SEC Form 13F

Who owns American Exceptionalism Acquisition Corp. A (AEXA)


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

Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

83
Institutional holders
29M
Shares held (tracked funds)

How the tape is positioned

13 tracked funds added or opened AEXA while 31 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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

AEXA’s largest tracked holder by dollar value, ExodusPoint Capital Management, LP, sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in AEXA 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 2025-Q4 and 2026-Q1, across 83 tracked filers holding AEXA, 30 increased or opened the position and 33 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.

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 AEXA between the 2025-Q4 and 2026-Q1 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 4

  • Goodlander Investment Management, LLC$4M
  • Brevan Howard Capital Management LP$1M
  • BARCLAYS PLC$611K
  • O'Connor Alternative Investments LLC$542K

Full exits 1

  • OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)$570K

Largest adds

  • HIGHBRIDGE CAPITAL MANAGEMENT LLC$10M
  • GRAHAM CAPITAL WEALTH MANAGEMENT, LLC$8M
  • JPMORGAN CHASE & CO$8M
  • ExodusPoint Capital Management, LP$7M
  • SUSQUEHANNA INTERNATIONAL GROUP, LLP$5M
  • MYDA Advisors LLC$2M

Largest trims

  • T3 Companies, LLC$3M
  • Polar Asset Management Partners Inc.$3M
  • BOOTHBAY FUND MANAGEMENT, LLC$3M
  • Sculptor Capital LP$2M
  • ARISTEIA CAPITAL, L.L.C.$2M
  • Linden Advisors LP$1M

Institutional holders

One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).

FundSharesReported value% of valueQuarter
ExodusPoint Capital Management, LP added1,645,000$18M5.3%2026-Q1
Empyrean Capital Partners, LP1,230,000$13M4.0%2026-Q1
MOORE CAPITAL MANAGEMENT, LP1,200,000$13M3.9%2026-Q1
D. E. Shaw & Co., Inc.1,200,000$13M3.9%2026-Q1
Magnetar Financial LLC1,100,000$12M3.6%2026-Q1
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND1,100,000$12M3.6%2026-Q1
Alberta Investment Management Corp1,100,000$12M3.6%2026-Q1
Philosophy Capital Management LLC added1,004,367$11M3.2%2026-Q1
JPMORGAN CHASE & CO added1,000,300$11M3.2%2026-Q1
HIGHBRIDGE CAPITAL MANAGEMENT LLC added1,000,300$11M3.2%2026-Q1
Allianz Asset Management GmbH900,000$10M2.9%2026-Q1
Harraden Circle Investments, LLC886,000$10M2.9%2026-Q1
BlueCrest Capital Management Ltd trimmed881,386$10M2.8%2026-Q1
Sculptor Capital LP trimmed844,667$9M2.7%2026-Q1
GRAHAM CAPITAL WEALTH MANAGEMENT, LLC added821,904$9M2.7%2026-Q1
Governors Lane LP trimmed820,990$9M2.7%2026-Q1
Linden Advisors LP trimmed757,850$8M2.4%2026-Q1
AQR Arbitrage LLC trimmed744,461$8M2.4%2026-Q1
TWO SIGMA INVESTMENTS, LP738,505$8M2.4%2026-Q1
Lighthouse Investment Partners, LLC650,000$7M2.1%2026-Q1
MMCAP International Inc. SPC631,494$7M2.0%2026-Q1
PICTON MAHONEY ASSET MANAGEMENT trimmed550,000$6M1.8%2026-Q1
BOOTHBAY FUND MANAGEMENT, LLC trimmed514,757$6M1.7%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added478,831$5M1.5%2026-Q1
MYDA Advisors LLC added450,000$5M1.5%2026-Q1
MILLENNIUM MANAGEMENT LLC added437,142$5M1.4%2026-Q1
BERKLEY W R CORP added421,159$5M1.4%2026-Q1
Goodlander Investment Management, LLC new409,469$4M1.3%2026-Q1
Radcliffe Capital Management, L.P.366,382$4M1.2%2026-Q1
ADAR1 Capital Management, LLC357,539$4M1.2%2026-Q1
Shaolin Capital Management LLC trimmed350,000$4M1.1%2026-Q1
HBK INVESTMENTS L P350,000$4M1.1%2026-Q1
J. Goldman & Co LP315,000$3M1.0%2026-Q1
TENOR CAPITAL MANAGEMENT Co., L.P. trimmed300,000$3M1.0%2026-Q1
Boussard & Gavaudan Investment Management LLP275,000$3M0.9%2026-Q1
BNP PARIBAS FINANCIAL MARKETS added260,500$3M0.8%2026-Q1
Garde Capital, Inc. added234,233$3M0.8%2026-Q1
HRT FINANCIAL LP trimmed199,820$2M0.6%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. added196,366$2M0.6%2026-Q1
K2 PRINCIPAL FUND, L.P. added184,665$2M0.6%2026-Q1
Massar Capital Management, LP added178,976$2M0.6%2026-Q1
Context Capital Management, LLC170,000$2M0.5%2026-Q1
Periscope Capital Inc. trimmed160,000$2M0.5%2026-Q1
Wealthspring Capital LLC150,000$2M0.5%2026-Q1
Saba Capital Management, L.P. trimmed131,790$1M0.4%2026-Q1
Polar Asset Management Partners Inc. trimmed129,924$1M0.4%2026-Q1
SYQUANT CAPITAL SAS125,000$1M0.4%2026-Q1
TORONTO DOMINION BANK trimmed120,000$1M0.4%2026-Q1
DLD Asset Management, LP added111,841$1M0.4%2026-Q1
LMR Partners LLP106,315$1M0.3%2026-Q1
Schonfeld Strategic Advisors LLC added104,586$1M0.3%2026-Q1
Brevan Howard Capital Management LP new100,000$1M0.3%2026-Q1
MATAURO, LLC trimmed100,553$1M0.3%2026-Q1
ARISTEIA CAPITAL, L.L.C. trimmed83,464$904K0.3%2026-Q1
Waratah Capital Advisors Ltd. trimmed80,062$867K0.3%2026-Q1
Marex Group plc trimmed57,560$623K0.2%2026-Q1
BARCLAYS PLC new56,460$611K0.2%2026-Q1
Kestra Advisory Services, LLC added54,600$591K0.2%2026-Q1
Lineage Point Capital LP added53,521$580K0.2%2026-Q1
GRITSTONE ASSET MANAGEMENT LLC50,000$542K0.2%2026-Q1
First Trust Capital Management L.P.50,000$542K0.2%2026-Q1
O'Connor Alternative Investments LLC new50,000$542K0.2%2026-Q1
Qube Research & Technologies Ltd new35,470$384K0.1%2026-Q1
CITADEL ADVISORS LLC new31,250$338K0.1%2026-Q1
Clear Street Group Inc. trimmed30,000$325K0.1%2026-Q1
FNY Investment Advisers, LLC trimmed27,800$301K0.1%2026-Q1
T3 Companies, LLC trimmed26,150$283K0.1%2026-Q1
DELTEC ASSET MANAGEMENT LLC20,000$217K0.1%2026-Q1
Verition Fund Management LLC trimmed17,500$190K0.1%2026-Q1
Clearline Capital LP added16,146$175K0.1%2026-Q1
RAYMOND JAMES FINANCIAL INC added13,938$151K0.0%2026-Q1
Dynamic Technology Lab Private Ltd new10,816$117K0.0%2026-Q1
Walleye Capital LLC trimmed10,200$110K0.0%2026-Q1
HGC Investment Management Inc.10,000$108K0.0%2026-Q1
UBS Group AG new4,854$53K0.0%2026-Q1
Aventura Private Wealth, LLC2,551$28K0.0%2026-Q1
CoreCap Advisors, LLC2,100$23K0.0%2026-Q1
NATIONAL BANK OF CANADA /FI/2,100$23K0.0%2026-Q1
ROYAL BANK OF CANADA trimmed1,418$15K0.0%2026-Q1
WELLS FARGO & COMPANY/MN new1,000$11K0.0%2026-Q1
IFP Advisors, Inc1,000$11K0.0%2026-Q1
Dauntless Investment Group, LLC trimmed670$7K0.0%2026-Q1
Tower Research Capital LLC (TRC) new301$3K0.0%2026-Q1
Anson Funds Management LP new550,100$6M1.8%2025-Q3 stale
METEORA CAPITAL, LLC new340,611$4M1.1%2025-Q3 stale
GLAZER CAPITAL, LLC new200,100$2M0.7%2025-Q3 stale
ATW SPAC MANAGEMENT LLC new92,500$1M0.3%2025-Q3 stale
CSS LLC/IL new66,362$725K0.2%2025-Q3 stale
Calamos Advisors LLC new63,013$689K0.2%2025-Q3 stale
Amitell Capital Pte Ltd new60,000$656K0.2%2025-Q3 stale
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) new50,000$570K0.2%2025-Q4 stale
Militia Capital Partners, LP new48,300$528K0.2%2025-Q3 stale
JANE STREET GROUP, LLC trimmed19,647$224K0.1%2025-Q4 stale
Virtu Financial LLC trimmed17,903$204K0.1%2025-Q4 stale
Legend Capital Advisors LLC new17,250$196K0.1%2025-Q4 stale
Decagon Asset Management LLP new16,000$182K0.1%2025-Q4 stale
Scientech Research LLC new12,267$134K0.0%2025-Q3 stale
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO new500$6K0.0%2025-Q4 stale
Caitong International Asset Management Co., Ltd new256$3K0.0%2025-Q4 stale
DV EQUITIES, LLC new200$2K0.0%2025-Q4 stale

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