Skip to main content Skip to main content
Institutional Ownership · SEC Form 13F

Who owns ALUB (ALUB)


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

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

51
Institutional holders
24,082,259
Shares held (tracked funds)

Conviction spread

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

Book-share is each fund’s reported value in ALUB 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

Only one quarter (2026-Q1) of 13F history is available — a quarter-over-quarter accumulation delta needs two.

We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.

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.

FundSharesReported value% of valueQuarter
Hudson Bay Capital Management LP new1,483,278$15M6.2%2026-Q1
GLAZER CAPITAL, LLC new1,361,360$14M5.7%2026-Q1
Alberta Investment Management Corp new1,250,000$12M5.2%2026-Q1
Magnetar Financial LLC new1,249,992$12M5.2%2026-Q1
Yaupon Capital Management LP new1,100,080$11M4.6%2026-Q1
TENOR CAPITAL MANAGEMENT Co., L.P. new1,000,000$10M4.2%2026-Q1
Mercuria Capital Strategies, LLC new1,000,000$10M4.2%2026-Q1
Linden Advisors LP new1,000,000$10M4.2%2026-Q1
Polar Asset Management Partners Inc. new1,000,000$10M4.2%2026-Q1
BlueCrest Capital Management Ltd new825,000$8M3.4%2026-Q1
MOORE CAPITAL MANAGEMENT, LP new800,000$8M3.3%2026-Q1
MILLENNIUM MANAGEMENT LLC new750,000$7M3.1%2026-Q1
Sculptor Capital LP new749,900$7M3.1%2026-Q1
Boussard & Gavaudan Investment Management LLP new700,000$7M2.9%2026-Q1
PICTON MAHONEY ASSET MANAGEMENT new700,000$7M2.9%2026-Q1
Radcliffe Capital Management, L.P. new675,000$7M2.8%2026-Q1
METEORA CAPITAL, LLC new646,632$6M2.7%2026-Q1
Governors Lane LP new613,500$6M2.5%2026-Q1
AQR Arbitrage LLC new611,535$6M2.5%2026-Q1
D. E. Shaw & Co., Inc. new550,573$5M2.3%2026-Q1
HBK INVESTMENTS L P new500,001$5M2.1%2026-Q1
TWO SIGMA INVESTMENTS, LP new453,124$5M1.9%2026-Q1
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new450,000$4M1.9%2026-Q1
Lineage Point Capital LP new394,000$4M1.6%2026-Q1
BNP PARIBAS FINANCIAL MARKETS new390,699$4M1.6%2026-Q1
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS new349,998$3M1.5%2026-Q1
Shaolin Capital Management LLC new300,000$3M1.2%2026-Q1
Ghisallo Capital Management LLC new300,000$3M1.2%2026-Q1
RIVERNORTH CAPITAL MANAGEMENT, LLC new299,508$3M1.2%2026-Q1
HighTower Advisors, LLC new291,894$3M1.2%2026-Q1
Verition Fund Management LLC new250,000$2M1.0%2026-Q1
WHITEBOX ADVISORS LLC new200,000$2M0.8%2026-Q1
First Trust Capital Management L.P. new199,998$2M0.8%2026-Q1
Wealthspring Capital LLC new173,000$2M0.7%2026-Q1
Clear Street Group Inc. new167,876$2M0.7%2026-Q1
SONA ASSET MANAGEMENT (US) LLC new160,904$2M0.7%2026-Q1
K2 PRINCIPAL FUND, L.P. new150,000$1M0.6%2026-Q1
JPMORGAN CHASE & CO new137,682$1M0.6%2026-Q1
GRITSTONE ASSET MANAGEMENT LLC new125,000$1M0.5%2026-Q1
BERKLEY W R CORP new124,086$1M0.5%2026-Q1
DLD Asset Management, LP new100,000$998K0.4%2026-Q1
Schonfeld Strategic Advisors LLC new81,626$815K0.3%2026-Q1
Parallax Volatility Advisers, L.P. new80,196$803K0.3%2026-Q1
MIZUHO SECURITIES USA LLC new79,323$791K0.3%2026-Q1
DELTEC ASSET MANAGEMENT LLC new75,000$748K0.3%2026-Q1
Virtu Financial LLC new55,006$549K0.2%2026-Q1
TORONTO DOMINION BANK new38,688$386K0.2%2026-Q1
BOOTHBAY FUND MANAGEMENT, LLC new37,500$374K0.2%2026-Q1
Periscope Capital Inc. new30,000$299K0.1%2026-Q1
ABC ARBITRAGE SA new20,000$200K0.1%2026-Q1
UBS Group AG new300$3K0.0%2026-Q1

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