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Aeluma, Inc. (ALMU) institutional ownership

Latest close $14.19 Jul 28, 2026
Market cap$252M 52-week range SectorTechnology
Funds holding · Q1 2026
78
reported ALMU position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
48 buyers · 30 sellers

Aeluma, Inc. (ALMU) price and institutional activity

Dates

Q1 2026

$0 bought by 48 investors
Millennium Management LLCRaymond James Financial Inc +46 more
$0 sold by 30 investors
Susquehanna International Group, LLPVanguard +28 more
Bought Sold Totals per quarter; hover a bar for the names.

Aeluma, Inc. (ALMU) institutional activity · 48

Investor Type Est. change Change Δ Own Date
Millennium Management LLC · Added
Change +251K Date Q1 2026
Millennium Management LLC Added· Q1 2026 +251K Q1 2026
Raymond James Financial Inc · Added
Change +248K Date Q1 2026
Raymond James Financial Inc Added· Q1 2026 +248K Q1 2026
Marshall Wace, LLP · New
Change +149K Date Q1 2026
Marshall Wace, LLP New· Q1 2026 +149K Q1 2026
Maytree Asset Management Ltd · New
Change +73K Date Q1 2026
Maytree Asset Management Ltd New· Q1 2026 +73K Q1 2026
UBS Group AG · Added
Change +72K Date Q1 2026
UBS Group AG Added· Q1 2026 +72K Q1 2026
BlackRock · Added
Change +36K Date Q1 2026
BlackRock Added· Q1 2026 +36K Q1 2026
Fortitude Advisory Group L.L.C. · New
Change +35K Date Q1 2026
Fortitude Advisory Group L.L.C. New· Q1 2026 +35K Q1 2026
Goldman Sachs Group Inc · Added
Change +34K Date Q1 2026
Goldman Sachs Group Inc Added· Q1 2026 +34K Q1 2026
Trexquant Investment LP · New
Change +34K Date Q1 2026
Trexquant Investment LP New· Q1 2026 +34K Q1 2026
State Street · Added
Change +34K Date Q1 2026
State Street Added· Q1 2026 +34K Q1 2026
Quantbot Technologies LP · New
Change +29K Date Q1 2026
Quantbot Technologies LP New· Q1 2026 +29K Q1 2026
D. E. Shaw & Co., Inc. · New
Change +25K Date Q1 2026
D. E. Shaw & Co., Inc. New· Q1 2026 +25K Q1 2026
Peak6 LLC · New
Change +23K Date Q1 2026
Peak6 LLC New· Q1 2026 +23K Q1 2026
Gatepass Capital, LLC · New
Change +20K Date Q1 2026
Gatepass Capital, LLC New· Q1 2026 +20K Q1 2026
Exoduspoint Capital Management, LP · New
Change +17K Date Q1 2026
Exoduspoint Capital Management, LP New· Q1 2026 +17K Q1 2026
Data through Q1 2026 · filed May 19, 2026
15 of 48

Aeluma, Inc. (ALMU) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Klamkin Jonathan · Director 2 operations −$422K
Price $21.08–$21.56 Qty −20K Owned 2K ΔOwn −89.3% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Klamkin Jonathan Director 2 operations $21.08–$21.56 −20K −$422K 2K −89.3% Jul 1, 2026 Jul 2, 2026
Klamkin Jonathan · Director 2 operations 0
Owned 22K Trade date Jul 1, 2026 Filed date Jul 2, 2026
Klamkin Jonathan Director 2 operations 0 22K Jul 1, 2026 Jul 2, 2026
Klamkin Jonathan · Director 5 operations −$501K
Price $22.19–$26.25 Qty −20K Owned 2K Trade date Jun 1, 2026 Filed date Jun 3, 2026
Klamkin Jonathan Director 5 operations $22.19–$26.25 −20K −$501K 2K Jun 1, 2026 Jun 3, 2026
Klamkin Jonathan · Director 2 operations 0
Owned 22K Trade date Jun 1, 2026 Filed date Jun 3, 2026
Klamkin Jonathan Director 2 operations 0 22K Jun 1, 2026 Jun 3, 2026
Denbaars Steven · Director 2 operations −$256K
Price $20.40–$21.30 Qty −12K Owned 370K Trade date May 20, 2026 Filed date May 21, 2026
Denbaars Steven Director 2 operations $20.40–$21.30 −12K −$256K 370K May 20, 2026 May 21, 2026
Denbaars Steven · Director 2 operations −$250K
Price $19.56–$20.61 Qty −12K Owned 383K Trade date May 19, 2026 Filed date May 21, 2026
Denbaars Steven Director 2 operations $19.56–$20.61 −12K −$250K 383K May 19, 2026 May 21, 2026
Klamkin Jonathan · Director 3 operations −$499K
Price $24.20–$25.71 Qty −20K Owned 2K Trade date May 1, 2026 Filed date May 5, 2026
Klamkin Jonathan Director 3 operations $24.20–$25.71 −20K −$499K 2K May 1, 2026 May 5, 2026
Klamkin Jonathan · Director 2 operations 0
Owned 22K Trade date May 1, 2026 Filed date May 5, 2026
Klamkin Jonathan Director 2 operations 0 22K May 1, 2026 May 5, 2026
Klamkin Jonathan · Director 2 operations 0
Owned 22K Trade date Apr 1, 2026 Filed date May 5, 2026
Klamkin Jonathan Director 2 operations 0 22K Apr 1, 2026 May 5, 2026
Klamkin Jonathan · Director Sell −$262K
Price $13.10 Qty −20K Owned 1.4M Trade date Apr 1, 2026 Filed date Apr 3, 2026
Klamkin Jonathan Director Sell $13.10 −20K −$262K 1.4M Apr 1, 2026 Apr 3, 2026
Klamkin Jonathan · Director 2 operations 0
Owned 52K Trade date Mar 4, 2026 Filed date May 5, 2026
Klamkin Jonathan Director 2 operations 0 52K Mar 4, 2026 May 5, 2026
Klamkin Jonathan · Director, Officer, 10% Owner 2 operations −$902K
Price $17.77–$18.41 Qty −50K Owned 1.5M Trade date Mar 4, 2026 Filed date Mar 5, 2026
Klamkin Jonathan Director, Officer, 10% Owner 2 operations $17.77–$18.41 −50K −$902K 1.5M Mar 4, 2026 Mar 5, 2026
Denbaars Steven · Director Sell −$198K
Price $15.85 Qty −12K Owned 385K Trade date Feb 26, 2026 Filed date Feb 27, 2026
Denbaars Steven Director Sell $15.85 −12K −$198K 385K Feb 26, 2026 Feb 27, 2026
Denbaars Steven · Director Sell −$220K
Price $17.58 Qty −12K Owned 398K Trade date Feb 25, 2026 Filed date Feb 27, 2026
Denbaars Steven Director Sell $17.58 −12K −$220K 398K Feb 25, 2026 Feb 27, 2026
Tompkins Mark N. · Other 2 operations −$508K
Price $14.63–$15.12 Qty −34K Owned 1.8M Trade date Feb 4, 2026 Filed date Feb 5, 2026
Tompkins Mark N. Other 2 operations $14.63–$15.12 −34K −$508K 1.8M Feb 4, 2026 Feb 5, 2026
15 of 56
15 of 56 Sign in to continue to older insider transactions.

Aeluma, Inc. (ALMU) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
McCarthy Lee 1.6M
% of shares outstanding 15.4% Filing date Jun 30, 2021
McCarthy Lee 1.6M 15.4% Jun 30, 2021
Klamkin Jonathan 1.6M
% of shares outstanding 15.4% Filing date Jun 30, 2021
Klamkin Jonathan 1.6M 15.4% Jun 30, 2021
Blackrock, Inc. 964K
% of shares outstanding 5.3% Filing date Jul 27, 2026
Blackrock, Inc. 964K 5.3% Jul 27, 2026
Tompkins Mark N. 885K
% of shares outstanding 4.8% Filing date May 15, 2026
Tompkins Mark N. 885K 4.8% May 15, 2026
Jacobs Ian Seth 200K
% of shares outstanding 1.9% Filing date Feb 14, 2022
Jacobs Ian Seth 200K 1.9% Feb 14, 2022
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Aeluma, Inc. (ALMU) ownership FAQ

Who owns ALMU?

78 reporting institutions disclosed ALMU position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.