Comparable stake leader
Acuitas Group Holdings, LLC
SEC ownership of Ontrak, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001136174.
Disclosed value leader
Acuitas Group Holdings, LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Acuitas Group Holdings, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Acuitas Group Holdings, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001136174
- Issuer location
- Miami, 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 Ontrak, Inc. (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
Acuitas Group Holdings, LLC
Disclosed value leader
Acuitas Group Holdings, LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 97%
13D/G row: Acuitas Group Holdings, LLC
Showing 1-8 of 50 holder rows.
Quick read
Acuitas Group Holdings, LLC leads the comparable SEC ownership view at 97%.
50 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 Acuitas Group Holdings, LLC's linked filing trail.
Comparable ownership
Top 5
Acuitas Group Holdings, LLC
97%
BIGGER CAPITAL FUND L P
9.2%
ARMISTICE CAPITAL, LLC
5%
Hudson Bay Capital Management LP
5%
Aberdeen Group plc
6.3%
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 |
|---|---|---|---|---|---|
| Acuitas Group Holdings, LLC |
13D/G
3/4/5
TERREN S. PEIZER · 10%+ Owner
|
97%
|
$214,097,840
146,642,356 shares
|
+$114,798,083 | 27 Jun 2025 |
| BIGGER CAPITAL FUND L P |
13D/G
Bigger Michael
|
9.2%
|
$949,000
650,000 shares
|
$0 | 27 Jun 2025 |
| ARMISTICE CAPITAL, LLC |
13D/G
|
5%
|
$328,030
372,085 shares
|
-$49,773 | 30 Sep 2025 |
| Hudson Bay Capital Management LP |
13F
13D/G
Company
|
5%
from 13D/G
|
$236,449
213,017 shares
|
— | 31 Mar 2026 |
| Aberdeen Group plc |
13F
Company
|
6.3%
|
$9,150,775
8,243,941 shares
|
— | 31 Mar 2026 |
| BVF INC/IL |
13F
Company
|
5.9%
|
$8,494,799
7,652,972 shares
|
— | 31 Mar 2026 |
| Avidity Partners Management LP |
13F
Company
|
5.6%
|
$13,881,178
7,369,352 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
3.9%
|
$5,703,531
5,138,316 shares
|
— | 31 Mar 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 20 Jul 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 1-18 of 18 reporting-owner rows connected to Ontrak, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Acuitas Group Holdings, LLC
Net 12M change
$0
Latest report
20 Jun 2025
Recent insider transactions for Ontrak, Inc.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.