Comparable stake leader
Research Alliance Holdings III LLC /Cayman
SEC ownership of Research Alliance Corp III
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002118032.
Disclosed value leader
Research Alliance Holdings III LLC /Cayman
Comparable rows
12/30
Latest evidence
30 Sep 2026
- Public ticker
- RACC on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Research Alliance Holdings III LLC /Cayman
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
12 of 30
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Research Alliance Holdings III LLC /Cayman
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002118032
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Research Alliance Corp III (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Research Alliance Holding...
Disclosed value leader
Research Alliance Holding...
Comparable rows
12/30
Latest evidence
30 Sep 2026
13D/G
3/4/5
13F
Lead comparable stake: 17%
18 rows are not safely comparable across share classes.
13D/G row: Research Alliance Holdings III LLC /Cayman
Showing 1-8 of 30 holder rows.
Quick read
Research Alliance Holdings III LLC /Cayman leads the comparable SEC ownership view at 17%.
12 of 30 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Research Alliance Holdings III LLC /Cayman's linked filing trail.
Comparable ownership
Top 5
Research Alliance Holdings III LL...
17%
Nantahala Capital Management, LLC
14%
ADAR1 Capital Management, LLC
8.4%
PERCEPTIVE ADVISORS LLC
8.2%
BANK OF AMERICA CORP /DE/
6.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 30 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Research Alliance Holdings III LLC /Cayman |
13D/G
3/4/5
Research Alliance Holdings III LLC · Director, 10%+ Owner
|
17%
Reported 13D/G
· 26 Jul 2026
|
$16,236,473
1,520,269 shares
|
$0 | 26 Jul 2026 |
| Nantahala Capital Management, LLC |
13D/G
|
14%
Reported 13D/G
· 30 Sep 2026
|
$12,386,000
1,100,000 shares
|
$0 | 30 Sep 2026 |
| ADAR1 Capital Management, LLC |
13D/G
13F
Company
|
8.4%
Reported 13D/G
· 30 Jun 2026
|
$7,345,000
650,000 shares
|
$0 | 30 Jun 2026 |
| PERCEPTIVE ADVISORS LLC |
13F
13D/G
Company
|
8.2%
Reported 13D/G
· 20 May 2026
|
$8,025,000
750,000 shares
|
— | 30 Jun 2026 |
| BANK OF AMERICA CORP /DE/ |
13D/G
|
6.5%
Reported 13D/G
· 30 Jun 2026
|
$5,694,228
503,914 shares
|
$0 | 30 Jun 2026 |
| GREAT POINT PARTNERS LLC |
13D/G
|
6.5%
Reported 13D/G
· 04 Sep 2026
|
$14,136,948
504,891 shares
|
$0 | 04 Sep 2026 |
| BALYASNY ASSET MANAGEMENT L.P. |
13D/G
13F
Company
|
6.4%
Reported 13D/G
· 30 Jun 2026
|
$5,650,000
500,000 shares
|
$0 | 30 Jun 2026 |
| Spruce Street Capital LP |
13D/G
13F
Company
|
6.4%
Reported 13D/G
· 30 Jun 2026
|
$5,650,000
500,000 shares
|
$0 | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 21 Oct 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-6 of 6 reporting-owner rows connected to Research Alliance Corp III. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Michael F. MacLean
Net 12M change
$0
Latest report
21 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael F. MacLean | Director | Mixed | 19 May 2026 | |||
| Francis Sherman Adams | Chief Financial Officer | Mixed | 19 May 2026 | |||
| Henry William Stusnick | COO and CBO | Mixed | 19 May 2026 | |||
| Timothy J. Miller | Director | Mixed | 19 May 2026 | |||
| Matthew Hammond | Chief Executive Officer, Director, 10%+ Owner | Mixed | 21 May 2026 | |||
| Research Alliance Holdings III LLC /Cayman | Director, 10%+ Owner | Mixed | 21 May 2026 |
Recent insider transactions for Research Alliance Corp III
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Research Alliance Holdings III LLC /Cayman | RACC | Class A Ordinary Shares | Award | 275,000 | 275,000 | 21 May 2026 | Direct | |||
| Matthew Hammond | RACC | Class A Ordinary Shares | Award | 275,000 | 275,000 | 21 May 2026 | By Research Alliance Holdings III LLC |
* marks a reported price that did not pass the local price check.