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.
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).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| ExodusPoint Capital Management, LP added | 1,645,000 | $18M | 5.3% | 2026-Q1 |
| Empyrean Capital Partners, LP | 1,230,000 | $13M | 4.0% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP | 1,200,000 | $13M | 3.9% | 2026-Q1 |
| D. E. Shaw & Co., Inc. | 1,200,000 | $13M | 3.9% | 2026-Q1 |
| Magnetar Financial LLC | 1,100,000 | $12M | 3.6% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1,100,000 | $12M | 3.6% | 2026-Q1 |
| Alberta Investment Management Corp | 1,100,000 | $12M | 3.6% | 2026-Q1 |
| Philosophy Capital Management LLC added | 1,004,367 | $11M | 3.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,000,300 | $11M | 3.2% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC added | 1,000,300 | $11M | 3.2% | 2026-Q1 |
| Allianz Asset Management GmbH | 900,000 | $10M | 2.9% | 2026-Q1 |
| Harraden Circle Investments, LLC | 886,000 | $10M | 2.9% | 2026-Q1 |
| BlueCrest Capital Management Ltd trimmed | 881,386 | $10M | 2.8% | 2026-Q1 |
| Sculptor Capital LP trimmed | 844,667 | $9M | 2.7% | 2026-Q1 |
| GRAHAM CAPITAL WEALTH MANAGEMENT, LLC added | 821,904 | $9M | 2.7% | 2026-Q1 |
| Governors Lane LP trimmed | 820,990 | $9M | 2.7% | 2026-Q1 |
| Linden Advisors LP trimmed | 757,850 | $8M | 2.4% | 2026-Q1 |
| AQR Arbitrage LLC trimmed | 744,461 | $8M | 2.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP | 738,505 | $8M | 2.4% | 2026-Q1 |
| Lighthouse Investment Partners, LLC | 650,000 | $7M | 2.1% | 2026-Q1 |
| MMCAP International Inc. SPC | 631,494 | $7M | 2.0% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 550,000 | $6M | 1.8% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 514,757 | $6M | 1.7% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 478,831 | $5M | 1.5% | 2026-Q1 |
| MYDA Advisors LLC added | 450,000 | $5M | 1.5% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 437,142 | $5M | 1.4% | 2026-Q1 |
| BERKLEY W R CORP added | 421,159 | $5M | 1.4% | 2026-Q1 |
| Goodlander Investment Management, LLC new | 409,469 | $4M | 1.3% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 366,382 | $4M | 1.2% | 2026-Q1 |
| ADAR1 Capital Management, LLC | 357,539 | $4M | 1.2% | 2026-Q1 |
| Shaolin Capital Management LLC trimmed | 350,000 | $4M | 1.1% | 2026-Q1 |
| HBK INVESTMENTS L P | 350,000 | $4M | 1.1% | 2026-Q1 |
| J. Goldman & Co LP | 315,000 | $3M | 1.0% | 2026-Q1 |
| TENOR CAPITAL MANAGEMENT Co., L.P. trimmed | 300,000 | $3M | 1.0% | 2026-Q1 |
| Boussard & Gavaudan Investment Management LLP | 275,000 | $3M | 0.9% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 260,500 | $3M | 0.8% | 2026-Q1 |
| Garde Capital, Inc. added | 234,233 | $3M | 0.8% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 199,820 | $2M | 0.6% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 196,366 | $2M | 0.6% | 2026-Q1 |
| K2 PRINCIPAL FUND, L.P. added | 184,665 | $2M | 0.6% | 2026-Q1 |
| Massar Capital Management, LP added | 178,976 | $2M | 0.6% | 2026-Q1 |
| Context Capital Management, LLC | 170,000 | $2M | 0.5% | 2026-Q1 |
| Periscope Capital Inc. trimmed | 160,000 | $2M | 0.5% | 2026-Q1 |
| Wealthspring Capital LLC | 150,000 | $2M | 0.5% | 2026-Q1 |
| Saba Capital Management, L.P. trimmed | 131,790 | $1M | 0.4% | 2026-Q1 |
| Polar Asset Management Partners Inc. trimmed | 129,924 | $1M | 0.4% | 2026-Q1 |
| SYQUANT CAPITAL SAS | 125,000 | $1M | 0.4% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 120,000 | $1M | 0.4% | 2026-Q1 |
| DLD Asset Management, LP added | 111,841 | $1M | 0.4% | 2026-Q1 |
| LMR Partners LLP | 106,315 | $1M | 0.3% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 104,586 | $1M | 0.3% | 2026-Q1 |
| Brevan Howard Capital Management LP new | 100,000 | $1M | 0.3% | 2026-Q1 |
| MATAURO, LLC trimmed | 100,553 | $1M | 0.3% | 2026-Q1 |
| ARISTEIA CAPITAL, L.L.C. trimmed | 83,464 | $904K | 0.3% | 2026-Q1 |
| Waratah Capital Advisors Ltd. trimmed | 80,062 | $867K | 0.3% | 2026-Q1 |
| Marex Group plc trimmed | 57,560 | $623K | 0.2% | 2026-Q1 |
| BARCLAYS PLC new | 56,460 | $611K | 0.2% | 2026-Q1 |
| Kestra Advisory Services, LLC added | 54,600 | $591K | 0.2% | 2026-Q1 |
| Lineage Point Capital LP added | 53,521 | $580K | 0.2% | 2026-Q1 |
| GRITSTONE ASSET MANAGEMENT LLC | 50,000 | $542K | 0.2% | 2026-Q1 |
| First Trust Capital Management L.P. | 50,000 | $542K | 0.2% | 2026-Q1 |
| O'Connor Alternative Investments LLC new | 50,000 | $542K | 0.2% | 2026-Q1 |
| Qube Research & Technologies Ltd new | 35,470 | $384K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC new | 31,250 | $338K | 0.1% | 2026-Q1 |
| Clear Street Group Inc. trimmed | 30,000 | $325K | 0.1% | 2026-Q1 |
| FNY Investment Advisers, LLC trimmed | 27,800 | $301K | 0.1% | 2026-Q1 |
| T3 Companies, LLC trimmed | 26,150 | $283K | 0.1% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC | 20,000 | $217K | 0.1% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 17,500 | $190K | 0.1% | 2026-Q1 |
| Clearline Capital LP added | 16,146 | $175K | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 13,938 | $151K | 0.0% | 2026-Q1 |
| Dynamic Technology Lab Private Ltd new | 10,816 | $117K | 0.0% | 2026-Q1 |
| Walleye Capital LLC trimmed | 10,200 | $110K | 0.0% | 2026-Q1 |
| HGC Investment Management Inc. | 10,000 | $108K | 0.0% | 2026-Q1 |
| UBS Group AG new | 4,854 | $53K | 0.0% | 2026-Q1 |
| Aventura Private Wealth, LLC | 2,551 | $28K | 0.0% | 2026-Q1 |
| CoreCap Advisors, LLC | 2,100 | $23K | 0.0% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ | 2,100 | $23K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 1,418 | $15K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN new | 1,000 | $11K | 0.0% | 2026-Q1 |
| IFP Advisors, Inc | 1,000 | $11K | 0.0% | 2026-Q1 |
| Dauntless Investment Group, LLC trimmed | 670 | $7K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) new | 301 | $3K | 0.0% | 2026-Q1 |
| Anson Funds Management LP new | 550,100 | $6M | 1.8% | 2025-Q3 stale |
| METEORA CAPITAL, LLC new | 340,611 | $4M | 1.1% | 2025-Q3 stale |
| GLAZER CAPITAL, LLC new | 200,100 | $2M | 0.7% | 2025-Q3 stale |
| ATW SPAC MANAGEMENT LLC new | 92,500 | $1M | 0.3% | 2025-Q3 stale |
| CSS LLC/IL new | 66,362 | $725K | 0.2% | 2025-Q3 stale |
| Calamos Advisors LLC new | 63,013 | $689K | 0.2% | 2025-Q3 stale |
| Amitell Capital Pte Ltd new | 60,000 | $656K | 0.2% | 2025-Q3 stale |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) new | 50,000 | $570K | 0.2% | 2025-Q4 stale |
| Militia Capital Partners, LP new | 48,300 | $528K | 0.2% | 2025-Q3 stale |
| JANE STREET GROUP, LLC trimmed | 19,647 | $224K | 0.1% | 2025-Q4 stale |
| Virtu Financial LLC trimmed | 17,903 | $204K | 0.1% | 2025-Q4 stale |
| Legend Capital Advisors LLC new | 17,250 | $196K | 0.1% | 2025-Q4 stale |
| Decagon Asset Management LLP new | 16,000 | $182K | 0.1% | 2025-Q4 stale |
| Scientech Research LLC new | 12,267 | $134K | 0.0% | 2025-Q3 stale |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO new | 500 | $6K | 0.0% | 2025-Q4 stale |
| Caitong International Asset Management Co., Ltd new | 256 | $3K | 0.0% | 2025-Q4 stale |
| DV EQUITIES, LLC new | 200 | $2K | 0.0% | 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.
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.