Comparable stake leader
Jonas Grossman
SEC ownership of Rainier Acquisition Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002147219.
Disclosed value leader
Jonas Grossman
Comparable rows
0/2
Latest evidence
28 Aug 2026
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Jonas Grossman
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
28 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002147219
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Rainier Acquisition Corp (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
Jonas Grossman
Disclosed value leader
Jonas Grossman
Comparable rows
0/2
Latest evidence
28 Aug 2026
3/4/5
Highest disclosed value: $2,429,680
2 rows are not safely comparable across share classes.
Quick read
Jonas Grossman has the largest disclosed position value at $2.43M.
0 of 2 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 Jonas Grossman's linked filing trail.
Disclosed position value
Top 2
Jonas Grossman
$2.43M
Ravenna 7 LLC
$2.43M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-2 of 2 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Jonas Grossman |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$2,429,680
242,968 shares
mixed-class rows
|
+$2,429,680 | 28 Aug 2026 |
| Ravenna 7 LLC |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$2,429,680
242,968 shares
mixed-class rows
|
+$2,429,680 | 28 Aug 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
Net insider flow leans to buying over the last 12 months. Net value: +$4,859,360.
Buys
$4,859,360
Insiders: 2
Sells
$0
Insiders: 0
Net
+$4,859,360
Shares: +485,936
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 485,936
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 485,936 | 0 | $4,859,360 | $0 | +$4,859,360 |
| 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 1-7 of 7 reporting-owner rows connected to Rainier Acquisition Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
7
Largest Forms 3/4/5 holder
Ravenna 7 LLC
Net 12M change
+$4,859,360
Latest report
28 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Ravenna 7 LLC | 10%+ Owner | $2,429,680 | +$2,429,680 | +100% | Filing P/S | 28 Aug 2026 |
| Jonas Grossman | Director, 10%+ Owner | $2,429,680 | +$2,429,680 | +100% | Filing P/S | 28 Aug 2026 |
| Wing C. Lam | Director | Mixed | 26 Aug 2026 | |||
| Ugwumba Chidozie | Director | Mixed | 26 Aug 2026 | |||
| Guy Barudin | Chief Financial Officer | Mixed | 26 Aug 2026 | |||
| Gbolahan Amusa | Chief Executive Officer, Director | Mixed | 26 Aug 2026 | |||
| Isaac Manke | Director | Mixed | 26 Aug 2026 |
Recent insider transactions for Rainier Acquisition Corp
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Grossman Jonas | Class A ordinary shares | Purchase | $1,943,750 | $10.00 | 194,375 | 194,375 | 28 Aug 2026 | By Ravenna 7 LLC | ||
| Jonas Grossman | Class A ordinary shares | Purchase | $1,943,750 | $10.00 | 194,375 | 194,375 | 28 Aug 2026 | By Ravenna 7 LLC | ||
| Grossman Jonas | Warrants to purchase Class A ordinary shares | Purchase | $485,930 | $10.00 | 48,593 | 48,593 | 28 Aug 2026 | By Ravenna 7 LLC | ||
| Jonas Grossman | Warrants to purchase Class A ordinary shares | Purchase | $485,930 | $10.00 | 48,593 | 48,593 | 28 Aug 2026 | By Ravenna 7 LLC |
* marks a reported price that did not pass the local price check.