Comparable stake leader
Adage Capital Management, L.P.
SEC ownership of OTG Acquisition Corp. I
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002077010.
Disclosed value leader
ADAGE CAPITAL PARTNERS GP, L.L.C.
Comparable rows
34/50
Latest evidence
30 Jun 2026
- Public ticker
- OTGA, OTGAU, OTGAW on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Adage Capital Management, L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
34 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Adage Capital Management, L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002077010
- Issuer location
- Palm Beach Gardens, FL
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 OTG Acquisition Corp. I (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
Adage Capital Management,...
Disclosed value leader
ADAGE CAPITAL PARTNERS GP...
Comparable rows
34/50
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.6%
16 rows are not safely comparable across share classes.
13D/G row: Adage Capital Management, L.P.
Showing 1-8 of 50 holder rows.
Quick read
Adage Capital Management, L.P. leads the comparable SEC ownership view at 7.6%.
34 of 50 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 Adage Capital Management, L.P.'s linked filing trail.
Comparable ownership
Top 5
Adage Capital Management, L.P.
7.6%
GLAZER CAPITAL, LLC
6.7%
Linden Capital L.P.
5.3%
ARISTEIA CAPITAL, L.L.C.
5.2%
METEORA CAPITAL, LLC
1.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Adage Capital Management, L.P. |
13D/G
|
7.6%
|
$18,126,000
1,800,000 shares
|
$0 | 30 Sep 2025 |
| GLAZER CAPITAL, LLC |
13F
13D/G
Company
|
6.7%
from 13D/G
|
$16,404,000
2,000,000 shares
mixed-class rows
|
— | 30 Jun 2026 |
| Linden Capital L.P. |
13D/G
Linden Advisors LP
|
5.3%
|
—
1,250,000 shares
|
$0 | 15 Sep 2025 |
| ARISTEIA CAPITAL, L.L.C. |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$12,685,395
1,837,499 shares
mixed-class rows
|
— | 30 Jun 2026 |
| METEORA CAPITAL, LLC |
13F
13D/G
Company
|
1.3%
from 13D/G
|
$3,131,722
308,544 shares
|
— | 30 Jun 2026 |
| LMR Partners LLP |
13F
Company
|
3.4%
|
$8,256,000
800,000 shares
|
— | 30 Jun 2026 |
| TWO SIGMA INVESTMENTS, LP |
13F
Company
|
3%
|
$7,262,518
715,519 shares
|
— | 30 Jun 2026 |
| Crossingbridge Advisors, LLC |
13F
Company
|
2.2%
|
$5,313,566
523,504 shares
|
— | 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
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 05 Sep 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 OTG Acquisition Corp. I. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Joseph William Dunfee
Net 12M change
$0
Latest report
11 Sep 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Joseph William Dunfee | Chief Financial Officer | Mixed | 11 Sep 2025 | |||
| OTG Acquisition Sponsor LLC | 10%+ Owner | Mixed | 11 Sep 2025 | |||
| Richard N. Nottenburg | Director | Mixed | 11 Sep 2025 | |||
| Wes Cummins | Director | Mixed | 11 Sep 2025 | |||
| Scott J. Troeller | Chief Executive Officer, Director | Mixed | 11 Sep 2025 | |||
| Steven Siesser | Director, 10%+ Owner | Mixed | 11 Sep 2025 |
Recent insider transactions for OTG Acquisition Corp. I
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Steven Siesser | Class A ordinary shares, par value $0.0001 per share | 0 | 500,000 | 11 Sep 2025 | See footnotes | |||||
| OTG Acquisition Sponsor LLC | Class A ordinary shares, par value $0.0001 per share | 0 | 500,000 | 11 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.