SI-BONE Inc
SIBN
182 hedge funds and large institutions have $815M invested in SI-BONE Inc in 2025 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 73 increasing their positions, 61 reducing their positions, and 19 closing their positions.
79% more call options, than puts
Call options by funds: $5.28M | Put options by funds: $2.96M
58% more first-time investments, than exits
New positions opened: 30 | Existing positions closed: 19
32% more capital invested
Capital invested by funds: $616M → $815M (+$199M)
20% more repeat investments, than reductions
Existing positions increased: 73 | Existing positions reduced: 61
4% more funds holding
Funds holding: 175 → 182 (+7)
1.81% less ownership
Funds ownership: 97.02% → 95.21% (-1.8%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FLAM
First Light Asset Management
Edina,
Minnesota
|
+$54.1M |
| 2 |
CCM
Cadian Capital Management
New York
|
+$10M |
| 3 |
GGHC
Gilder Gagnon Howe & Co
New York
|
+$7.19M |
| 4 |
Point72 Asset Management
Stamford,
Connecticut
|
+$4.24M |
| 5 |
AG
Algert Global
San Francisco,
California
|
+$3.42M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
O
OrbiMed
New York
|
-$38M |
| 2 |
CIP
Champlain Investment Partners
Burlington,
Vermont
|
-$17.2M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
-$9.34M |
| 4 |
Brown Advisory
Baltimore,
Maryland
|
-$5.41M |
| 5 |
Victory Capital Management
San Antonio,
Texas
|
-$5.33M |
SIBN Hedge Fund Activity: Q4 2025 in Review
182 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in SI-BONE Inc (SIBN) for Q4 2025, worth a combined $815M — up 32% from $616M a quarter earlier.
Buyers outnumbered sellers: 30 funds opened new SIBN positions and 19 closed out — a net gain of 11 holders — while 73 added to existing stakes and 61 trimmed.
The largest buyer was First Light Asset Management, adding an estimated $54.1M. The largest seller was OrbiMed, exiting entirely with an estimated $38M sold.
- 182 institutional investors held SI-BONE Inc (SIBN) as of Q4 2025, up from 175 in Q3 2025.
- Funds reported $815M of SI-BONE Inc stock for Q4 2025, up 32% quarter-over-quarter.
- 30 funds opened new SI-BONE Inc positions in Q4 2025 and 19 closed out, a net change of +11 holders.
- The largest SI-BONE Inc buyer in Q4 2025 was First Light Asset Management, an estimated $54.1M added.
- The largest SI-BONE Inc seller in Q4 2025 was OrbiMed, an estimated $38M sold.
Based on aggregated 13F filings for Q4 2025.