13-F holdings, Q3 2026
AIGH Capital Management LLC
A 13-F is the report large US investment managers file with the SEC each quarter, listing the stocks they held at quarter end.
- Reported value
- $880.7M
- Positions
- 43
- Filed
- Data as of
These holdings are as of , 44 days ago.
13-Fs for Q4 2026 are due by .
See this manager's Holder IQ and how the book overlaps yours
Free to start, with no card. Holder IQ scores a manager's past record. It describes the past and is not a recommendation to buy or sell anything. Sign up and you can follow this manager: one notice for each new 13-F, naming what changed and which of those positions you hold or watch.
Top holdings
- SNDK$163.5M94,000 shares18.6% of the book
- APPS$72.7M6,548,450 shares8.3% of the book
- INTC$60.1M500,000 shares6.8% of the book
- MXL$54.2M600,000 shares6.2% of the book
- SIMO$45.9M164,000 shares5.2% of the book
- ASPN$39.2M7,150,126 shares4.4% of the book
- CLFD$37.9M1,217,196 shares4.3% of the book
- DDD$29.2M8,124,428 shares3.3% of the book
- NNBR$27.6M7,531,532 shares3.1% of the book
- MEI$27.3M1,982,420 shares3.1% of the book
What changed this quarter
8 new positions and 7 sold out, against Q2 2026. Added and trimmed positions use the change in split-adjusted shares at the Q3 2026 implied price; full exits use their Q2 2026 reported value, not sale proceeds.
Largest buys
- ASPN
ASPEN AEROGELS INC
+$39.2M
New
Your stake and evidence for ASPN
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q3 2026 book.
Displayed change: +$39.2M. The current book reports 7,150,126 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 39182690 USD. Current reported shares: 7150126. Prior shares on current basis: not recorded.
- NNBR
NN INC
+$27.6M
+65,414.4% shares
Your stake and evidence for NNBR
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q2 2026 and Q3 2026.
Displayed change: +$27.6M. The current book reports 7,531,532 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
7,531,532 current shares − 11,496 prior shares on the same basis = +7,520,036 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 27598531.68067161 USD. Current reported shares: 7531532. Prior shares on current basis: 11496.
- KIDS
ORTHOPEDIATRICS CORP
+$20.1M
+334.4% shares
Your stake and evidence for KIDS
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q2 2026 and Q3 2026.
Displayed change: +$20.1M. The current book reports 1,171,765 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
1,171,765 current shares − 269,765 prior shares on the same basis = +902,000 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 20087540.346400514 USD. Current reported shares: 1171765. Prior shares on current basis: 269765.
- FOCL
EDAP TMS S A
+$15.6M
New
Your stake and evidence for FOCL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q3 2026 book.
Displayed change: +$15.6M. The current book reports 3,486,246 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 15583519 USD. Current reported shares: 3486246. Prior shares on current basis: not recorded.
- CEPL
CAPSTONE ENERGY PLUS INC
+$13.1M
New
Your stake and evidence for CEPL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q3 2026 book.
Displayed change: +$13.1M. The current book reports 2,920,812 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 13085238 USD. Current reported shares: 2920812. Prior shares on current basis: not recorded.
Largest sells
- SNDK
SANDISK CORP
−$95.7M
-36.9% shares
Your stake and evidence for SNDK
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q2 2026 and Q3 2026.
Displayed change: −$95.7M. The current book reports 94,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
94,000 current shares − 149,000 prior shares on the same basis = -55,000 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -95693950 USD. Current reported shares: 94000. Prior shares on current basis: 149000.
- PSNL
PERSONALIS INC
−$23M
Sold out, was 2.1% of the book
Your stake and evidence for PSNL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
The position reported in Q2 2026 is absent from the comparable Q3 2026 book.
Displayed change: −$23M. This was 2.1% of the prior book.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -22981000 USD. Current reported shares: not recorded. Prior shares on current basis: 1715000.
- MXL
MAXLINEAR INC
−$19.7M
-26.7% shares
Your stake and evidence for MXL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q2 2026 and Q3 2026.
Displayed change: −$19.7M. The current book reports 600,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
600,000 current shares − 818,000 prior shares on the same basis = -218,000 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -19687580 USD. Current reported shares: 600000. Prior shares on current basis: 818000.
- SOPH
SOPHIA GENETICS SA
−$19M
-57.3% shares
Your stake and evidence for SOPH
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q2 2026 and Q3 2026.
Displayed change: −$19M. The current book reports 1,689,395 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
1,689,395 current shares − 3,954,194 prior shares on the same basis = -2,264,799 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -18979015.485940233 USD. Current reported shares: 1689395. Prior shares on current basis: 3954194.
- ARDX
ARDELYX INC
−$16.3M
Sold out, was 1.5% of the book
Your stake and evidence for ARDX
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
The position reported in Q2 2026 is absent from the comparable Q3 2026 book.
Displayed change: −$16.3M. This was 1.5% of the prior book.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q2 2026 and Q3 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -16320000 USD. Current reported shares: not recorded. Prior shares on current basis: 3200000.
What was sold out, by size
- 7 real positions, 0.25% of the book or more
All of this comes from the filer's public SEC filings. A 13-F shows long positions in US-listed securities at quarter end and can leave out short positions, cash and non-US holdings, so it is not the whole portfolio. This is filing data, not investment advice.