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SI-BONE Inc
SIBN

158 hedge funds and large institutions have $568M invested in SI-BONE Inc in 2025 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 59 increasing their positions, 38 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,276% more call options, than puts

Call options by funds: $908K | Put options by funds: $66K

94% more first-time investments, than exits

New positions opened: 33 | Existing positions closed: 17

55% more repeat investments, than reductions

Existing positions increased: 59 | Existing positions reduced: 38

10% more funds holding

Funds holding: 143 → 158 (+15)

2% more capital invested

Capital invested by funds: $558M → $568M (+$9.47M)

0.4% more ownership

Funds ownership: 94.91% → 95.31% (+0.4%)

100% less funds holding in top 10

Funds holding in top 10: 1 → 0 (-1)

Holders
158
Holders Change
+15
Holders Change %
+10.49%
% of All Funds
2.12%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
33
Increased
59
Reduced
38
Closed
17
Calls
$908K
Puts
$66K
Net Calls
+$842K
Net Calls Change
+$96K

Top Buyers

1
FLAM
First Light Asset Management
Minnesota
+$7.67M
2
DSCM
Divisadero Street Capital Management
Florida
+$4.65M
3
American Century Companies
American Century Companies
Missouri
+$4.26M
4
Millennium Management
Millennium Management
New York
+$3.7M
5
Victory Capital Management
Victory Capital Management
Texas
+$3.62M

Top Sellers

1
KLP
Kent Lake PR
Puerto Rico
-$9.55M
2
Brown Advisory
Brown Advisory
Maryland
-$7.31M
3
SAM
Silvercrest Asset Management
New York
-$5.33M
4
HCA
Harbor Capital Advisors
Illinois
-$4.98M
5
JFG
Jefferies Financial Group
New York
-$3.51M
Name Holding Trade Value Shares
Change 		Change in
Stake
Raymond James Financial
51
Raymond James Financial
Florida
$1.22M -$14.8K -918 -1%
Lazard Asset Management
52
Lazard Asset Management
New York
$1.22M +$290K +17,948 +26%
Walleye Capital
53
Walleye Capital
New York
$1.14M +$1.31M +80,910 New
Qube Research & Technologies (QRT)
54
Qube Research & Technologies (QRT)
United Kingdom
$1.06M +$1.06M +65,656 +654%
Swiss National Bank
55
Swiss National Bank
Switzerland
$1.02M – – –
Barclays
56
Barclays
United Kingdom
$996K -$455K -28,200 -28%
SCM
57
Sterling Capital Management
North Carolina
$958K -$847K -52,489 -43%
Calamos Advisors
58
Calamos Advisors
Illinois
$918K +$1.06M +65,462 New
RhumbLine Advisers
59
RhumbLine Advisers
Massachusetts
$838K +$33.9K +2,100 +4%
ECM
60
ExodusPoint Capital Management
New York
$816K +$938K +58,135 New
AllianceBernstein
61
AllianceBernstein
Tennessee
$782K – – –
UBS Group
62
UBS Group
Switzerland
$741K -$1.22M -75,779 -59%
SEI Investments
63
SEI Investments
Pennsylvania
$725K -$104K -6,454 -11%
BNP Paribas Financial Markets
64
BNP Paribas Financial Markets
France
$723K -$823K -50,988 -50%
SCM
65
Semanteon Capital Management
Massachusetts
$696K +$800K +49,581 New
Susquehanna International Group
66
Susquehanna International Group
Pennsylvania
$693K +$407K +25,215 +104%
Universal-Beteiligungs- und Servicegesellschaft
67
Universal-Beteiligungs- und Servicegesellschaft
Germany
$683K +$786K +48,714 New
Verition Fund Management
68
Verition Fund Management
Connecticut
$597K +$518K +32,100 +307%
Bessemer Group
69
Bessemer Group
New Jersey
$591K -$7.7K -477 -1%
SSA
70
Schonfeld Strategic Advisors
New York
$561K +$154K +9,569 +31%
Squarepoint
71
Squarepoint
New York
$526K +$87.2K +5,405 +17%
A
72
AlphaQuest
New York
$525K +$416K +25,764 +221%
Legal & General Group
73
Legal & General Group
United Kingdom
$512K – – –
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$497K – – –
IIM
75
INTECH Investment Management
Florida
$472K +$177K +10,992 +49%
1 2
3
4 5

SIBN Hedge Fund Activity: Q1 2025 in Review

158 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in SI-BONE Inc (SIBN) for Q1 2025, worth a combined $568M — up 1.7% from $558M a quarter earlier.

Buyers outnumbered sellers: 33 funds opened new SIBN positions and 17 closed out — a net gain of 16 holders — while 59 added to existing stakes and 38 trimmed.

The largest buyer was First Light Asset Management, adding an estimated $7.67M. The largest seller was Kent Lake PR, cutting an estimated $9.55M.

  • 158 institutional investors held SI-BONE Inc (SIBN) as of Q1 2025, up from 143 in Q4 2024.
  • Funds reported $568M of SI-BONE Inc stock for Q1 2025, up 1.7% quarter-over-quarter.
  • 33 funds opened new SI-BONE Inc positions in Q1 2025 and 17 closed out, a net change of +16 holders.
  • The largest SI-BONE Inc buyer in Q1 2025 was First Light Asset Management, an estimated $7.67M added.
  • The largest SI-BONE Inc seller in Q1 2025 was Kent Lake PR, an estimated $9.55M sold.

Based on aggregated 13F filings for Q1 2025.