Ticker · CUSIP 825704109

SIBN

SI-BONE INC

Healthcare·Medical Devices

···Share

Holders (tracked)

Combined shares

3,759,135

Combined value

$74.13M

Last close

$14.09

Quarter

2025Q4

Price is -28.5% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$14.09+0.24 (+1.73%)H $21.40 · L $12.28 · Avg Vol 515K

Tracked holders · last 8 quarters

+1 vs previous quarter over the last 8.

SEC event timeline

21 events

Ken Griffin (Citadel Advisors) trimmed2026-02-17
−43,896 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+11,012 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+35,445 shares · 2025Q4
Position
Steve Cohen (Point72) added2026-02-17
+243,968 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+1,459 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−30,781 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+259,589 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−99,184 shares · 2025Q4
Position
AQR Capital Management trimmed2026-02-17
−8,093 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−265,300 shares · 2025Q4
Position
First Eagle Investment Management added2026-02-04
+53,200 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) exited2025-12-09
−256,064 shares · 2025Q3
Position
Steve Cohen (Point72) added2025-11-14
+251,102 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+29,304 shares · 2025Q3
Position
D.E. Shaw & Co. added2025-11-14
+49,519 shares · 2025Q3
Position
Wellington Management added2025-11-14
+364,897 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+1,210 shares · 2025Q3
Position
AQR Capital Management trimmed2025-11-14
−19,031 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−131,157 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+80,000 shares · 2025Q3
Position
First Eagle Investment Management added2025-11-12
+129,723 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for SIBN →

Follow-the-investor returns

If you'd copied each holder of SIBN…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
First Eagle Investment Management	2024Q4	$15.17	-7.1%	$7.6M
Ken Griffin (Citadel Advisors)	2019Q3	$15.19	-7.3%	$396K
Ken Griffin (Citadel Advisors)	2019Q3	$15.19	-7.3%	$396K
Renaissance Technologies	2019Q3	$17.17	-17.9%	$3.3M
T. Rowe Price	2018Q4	$17.40	-19.0%	$524K
Steve Cohen (Point72)	2022Q1	$17.56	-19.7%	$10.5M
Izzy Englander (Millennium Mgmt)	2018Q4	$17.70	-20.4%	$1.5M
Wellington Management	2020Q4	$18.10	-22.2%	$11.6M
AQR Capital Management	2020Q4	$18.39	-23.4%	$300K
Paul Tudor Jones (Tudor Investment)	2021Q2	$18.65	-24.4%	$3.7M
D.E. Shaw & Co.	2020Q1	$18.66	-24.5%	$5.7M
Two Sigma Investments	2019Q4	$19.47	-27.6%	$3.5M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions1

Paul Tudor Jones (Tudor Investment)
+259,589
$5.1M

Added to5

Steve Cohen (Point72)
+243,968
$4.8M
First Eagle Investment Management
+53,200
$1.0M
Two Sigma Investments
+35,445
$699K
D.E. Shaw & Co.
+11,012
$217K
T. Rowe Price
+1,459
$29

Trimmed5

Renaissance Technologies
−265,300
$5.2M
Izzy Englander (Millennium Mgmt)
−99,184
$2.0M
Ken Griffin (Citadel Advisors)
−43,896
$866K
Wellington Management
−30,781
$607K
AQR Capital Management
−8,093
$160K

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	11	4,209,129	$95.1M	—
2022Q2	10	5,192,853	$68.5M	-1
2022Q3	7	5,696,585	$99.5M	-3
2022Q4	9	6,136,219	$83.5M	+2
2023Q1	10	5,284,970	$104.0M	+1
2023Q2	12	7,098,157	$191.5M	+2
2023Q3	12	6,346,835	$134.8M	—
2023Q4	12	5,816,543	$122.1M	—
2024Q1	12	5,923,426	$97.0M	—
2024Q2	13	5,853,486	$75.7M	+1
2024Q3	8	1,477,575	$20.7M	-5
2024Q4	9	769,536	$10.8M	+1
2025Q1	11	1,638,575	$23.0M	+2
2025Q2	12	3,182,284	$59.9M	+1
2025Q3	11	3,620,816	$53.3M	-1
2025Q4	12	3,759,135	$74.1M	+1

Who owns SIBN

12 super-investors · 2025Q4

Tracked stake

3.76M

Combined value

$74M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New1Added5Trim6

#	Manager	Shares	Value	% of book	Last action
1	Wellington Management	822.5K	$16M	0.0%	Trim−30.8K
2	Steve Cohen Point72	746.0K	$15M	0.0%	Added+244.0K
3	First Eagle Investment Management	537.5K	$11M	0.0%	Added+53.2K
4	D.E. Shaw & Co.	404.0K	$8M	0.0%	Added+11.0K
5	Ken Griffin Citadel Advisors	310.3K	$6M	0.0%	Trim−43.9K
6	Paul Tudor Jones Tudor Investment	259.6K	$5M	0.0%	New+259.6K
7	Two Sigma Investments	250.9K	$5M	0.0%	Added+35.4K
8	Renaissance Technologies	234.4K	$5M	0.0%	Trim−265.3K
9	Izzy Englander Millennium Mgmt	107.4K	$2M	0.0%	Trim−99.2K
10	T. Rowe Price	37.2K	$733K	0.0%	Added+1.5K
11	Ken Griffin Citadel Advisors	28.1K	$554K	0.0%	Trim−43.9K
12	AQR Capital Management	21.3K	$419K	0.0%	Trim−8.1K

Recent moves

20 transactions

ADDT. Rowe Price
+1,459 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−99,184 · 2025Q4
TRIMWellington Management
−30,781 · 2025Q4
ADDTwo Sigma Investments
+35,445 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−43,896 · 2025Q4
TRIMAQR Capital Management
−8,093 · 2025Q4
ADDD.E. Shaw & Co.
+11,012 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+259,589 · 2025Q4
ADDSteve Cohen (Point72)
+243,968 · 2025Q4
TRIMRenaissance Technologies
−265,300 · 2025Q4
ADDFirst Eagle Investment Management
+53,200 · 2025Q4
SOLDPaul Tudor Jones (Tudor Investment)
−256,064 · 2025Q3
ADDSteve Cohen (Point72)
+251,102 · 2025Q3
ADDTwo Sigma Investments
+29,304 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−131,157 · 2025Q3
ADDD.E. Shaw & Co.
+49,519 · 2025Q3
ADDT. Rowe Price
+1,210 · 2025Q3
ADDWellington Management
+364,897 · 2025Q3
TRIMAQR Capital Management
−19,031 · 2025Q3
ADDRenaissance Technologies
+80,000 · 2025Q3

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