Octave Specialty Group
OSG
148 hedge funds and large institutions have $151M invested in Octave Specialty Group in 2026 Q1 according to their latest regulatory filings, with 39 funds opening new positions, 32 increasing their positions, 55 reducing their positions, and 34 closing their positions.
15% more first-time investments, than exits
New positions opened: 39 | Existing positions closed: 34
3% more funds holding
Funds holding: 144 → 148 (+4)
6.83% less ownership
Funds ownership: 79.21% → 72.39% (-6.8%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
42% less repeat investments, than reductions
Existing positions increased: 32 | Existing positions reduced: 55
44% less capital invested
Capital invested by funds: $270M → $151M (-$119M)
85% less call options, than puts
Call options by funds: $560K | Put options by funds: $3.69M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PGCM
Prescott Group Capital Management
Tulsa,
Oklahoma
|
+$4M |
| 2 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
+$3.7M |
| 3 |
TAM
Third Avenue Management
New York
|
+$3.2M |
| 4 |
RP
RIHO Partners
Tucson,
Arizona
|
+$3.13M |
| 5 |
IIA
IPG Investment Advisors
San Diego,
California
|
+$1.86M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$4.33M |
| 2 |
Morgan Stanley
New York
|
-$4.03M |
| 3 |
Barclays
London,
United Kingdom
|
-$3.57M |
| 4 |
BlackRock
New York
|
-$3.27M |
| 5 |
Goldman Sachs
New York
|
-$2.48M |
OSG Hedge Fund Activity: Q1 2026 in Review
148 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Octave Specialty Group (OSG) for Q1 2026, worth a combined $151M — down 44% from $270M a quarter earlier.
Buyers outnumbered sellers: 39 funds opened new OSG positions and 34 closed out — a net gain of 5 holders — while 32 added to existing stakes and 55 trimmed.
The largest buyer was Prescott Group Capital Management, adding an estimated $4M. The largest seller was Jane Street, cutting an estimated $4.33M.
- 148 institutional investors held Octave Specialty Group (OSG) as of Q1 2026, up from 144 in Q4 2025.
- Funds reported $151M of Octave Specialty Group stock for Q1 2026, down 44% quarter-over-quarter.
- 39 funds opened new Octave Specialty Group positions in Q1 2026 and 34 closed out, a net change of +5 holders.
- The largest Octave Specialty Group buyer in Q1 2026 was Prescott Group Capital Management, an estimated $4M added.
- The largest Octave Specialty Group seller in Q1 2026 was Jane Street, an estimated $4.33M sold.
Based on aggregated 13F filings for Q1 2026.