Comparable stake leader
First Light Asset Management, LLC
SEC ownership of SI-BONE, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001459839.
Disclosed value leader
First Light Asset Management, LLC
Comparable rows
6/50
Latest evidence
04 Nov 2026
- Public ticker
- SIBN on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
First Light Asset Management, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
6 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
First Light Asset Management, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
04 Nov 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001459839
- Issuer location
- Santa Clara, CA
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 SI-BONE, 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
First Light Asset Managem...
Disclosed value leader
First Light Asset Managem...
Comparable rows
6/50
Latest evidence
04 Nov 2026
13F
13D/G
3/4/5
Lead comparable stake: 18%
44 rows are not safely comparable across share classes.
13D/G row: First Light Asset Management, LLC
Showing 1-8 of 50 holder rows.
Quick read
First Light Asset Management, LLC leads the comparable SEC ownership view at 18%.
6 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 First Light Asset Management, LLC's linked filing trail.
Comparable ownership
Top 5
First Light Asset Management, LLC
18%
BlackRock, Inc.
8%
CADIAN CAPITAL MANAGEMENT, LP
7.5%
AMERICAN CENTURY INVESTMENT MANAG...
5.3%
Champlain Investment Partners, LLC
4.9%
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 |
|---|---|---|---|---|---|
| First Light Asset Management, LLC |
13F
13D/G
Company · Mathew P. Arens
|
18%
Reported 13D/G
· 30 Apr 2026
|
$132,648,715
8,127,985 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
8%
Reported 13D/G
· 30 Jun 2026
|
$59,996,547
3,676,259 shares
|
— | 30 Jun 2026 |
| CADIAN CAPITAL MANAGEMENT, LP |
13D/G
13F
Company
|
7.5%
Reported 13D/G
· 30 Jun 2026
|
$57,276,991
3,347,574 shares
|
$0 | 30 Jun 2026 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC |
13D/G
|
5.3%
Reported 13D/G
· 31 Dec 2025
|
$45,366,018
2,300,508 shares
|
-$10,601,452 | 31 Dec 2025 |
| Champlain Investment Partners, LLC |
13D/G
13F
Company
|
4.9%
Reported 13D/G
· 30 Sep 2025
|
$41,588,376
2,108,944 shares
|
-$613,884 | 30 Sep 2025 |
| BROWN ADVISORY INC |
13D/G
13F
Company
|
4.5%
Reported 13D/G
· 30 Sep 2026
|
$38,206,022
2,025,770 shares
|
-$9,194,212 | 30 Sep 2026 |
| AMERICAN CENTURY COMPANIES INC |
13F
Company
|
—
denominator unverified
|
$40,978,947
2,510,963 shares
|
— | 30 Jun 2026 |
| Granahan Investment Management, LLC |
13F
Company
|
—
denominator unverified
|
$31,516,890
1,931,182 shares
|
— | 30 Jun 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
Net insider flow leans to selling over the last 12 months. Net value: -$14,186,827.
Buys
$0
Insiders: 0
Sells
$14,186,827
Insiders: 7
Net
-$14,186,827
Shares: -736,085
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 736,085
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 387,815 | $0 | $8,316,299 | -$8,316,299 |
| 3-6 | 0 | 60,655 | $0 | $978,958 | -$978,958 |
| 6-9 | 0 | 167,697 | $0 | $2,550,255 | -$2,550,255 |
| 9-12 | 0 | 119,918 | $0 | $2,341,314 | -$2,341,314 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to SI-BONE, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Laura A. Francis
Net 12M change
-$14.19M
Full value: -$14,186,826 · USD · 12-month changeLatest report
04 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Laura A. Francis | Chief Executive Officer, Director | $14,619,079 | -$6,495,023 | -31% | Mixed | 04 Nov 2026 |
| Anshul Maheshwari | Chief Op & Financial Officer | $5,281,250 | -$1,977,887 | -27% | Filing P/S | 04 Nov 2026 |
| Michael A. Pisetsky | SVP, Ops & Adm/Chief Legal Ofr | $5,119,395 | -$2,678,686 | -34% | Filing P/S | 04 Nov 2026 |
| Anthony J. Recupero | Former President, Commercial Operations | $3,761,660 | -$463,180 | -11% | Filing P/S | 17 Feb 2026 |
| Jeffrey W. Dunn | Director | $1,859,618 | -$2,411,163 | -56% | Mixed | 02 Nov 2026 |
| John G. Freund | Director | $1,844,295 | Mixed | 04 Jun 2026 | ||
| Greg K. Hinckley | Director | $1,327,844 | Mixed | 07 Apr 2026 | ||
| Keith Valentine | Director | $1,197,464 | Mixed | 09 Jun 2023 | ||
| Timothy E. Davis Jr. | Director | $968,455 | -$104,187 | -9.7% | Mixed | 04 Jun 2026 |
| Jeryl L. Hilleman | Director | $552,840 | Mixed | 04 Jun 2026 | ||
| Mika Nishimura | Director | $551,589 | -$56,700 | -9.3% | Mixed | 04 Jun 2026 |
| Thomas A. West | Director | $479,270 | Mixed | 04 Jun 2026 | ||
| Daniel W. Wolf | Director | $473,958 | Mixed | 05 Jun 2025 | ||
| Helen Loh | Director | $452,893 | Mixed | 09 Jun 2023 | ||
| Karen A. Licitra | Director | $184,134 | Mixed | 25 Jun 2021 |
Recent insider transactions for SI-BONE, 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -37.3% | -$592,161 | $24.78 | -23,892 | 40,167 | 04 Nov 2026 | by Trust |
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -6.99% | -$309,683 | $25.08 | -12,349 | 164,444 | 04 Nov 2026 | Direct |
| Michael A. Pisetsky | SIBN | Common Stock | Options Exercise | 7.51% | 12,349 | 176,793 | 04 Nov 2026 | Direct | ||
| Michael A. Pisetsky | SIBN | Stock Options (Right to buy) | Options Exercise | -50% | -3,002 | 3,003 | 04 Nov 2026 | Direct | ||
| Michael A. Pisetsky | SIBN | Phantom Stock | Options Exercise | -50% | -9,347 | 9,348 | 04 Nov 2026 | Direct | ||
| Laura A. Francis | SIBN | Common Stock | Sale | -19.8% | -$1,897,642 | $25.30 | -75,000 | 304,256 | 04 Nov 2026 | by Trust |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.51% | -$81,175 | $25.00 | -3,247 | 211,250 | 04 Nov 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Sale | -55.5% | -$417,820 | $20.89 | -20,000 | 16,057 | 02 Nov 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Options Exercise | 124.6% | 20,000 | 36,057 | 02 Nov 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Stock Option (Right to Buy) | Options Exercise | -30.2% | -20,000 | 46,260 | 02 Nov 2026 | Direct | ||
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -15.3% | -$655,745 | $22.10 | -29,665 | 164,444 | 29 Oct 2026 | Direct |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.71% | -$84,105 | $22.50 | -3,738 | 214,497 | 29 Oct 2026 | Direct |
| Laura A. Francis | SIBN | Common Stock | Sale | -9.11% | -$762,013 | $20.05 | -38,006 | 379,256 | 12 Oct 2026 | by Trust |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -0.79% | -$33,754 | $19.50 | -1,731 | 218,235 | 05 Oct 2026 | Direct |
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -1.14% | -$56,918 | $18.17 | -3,133 | 270,517 | 02 Oct 2026 | Direct |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.49% | -$60,325 | $18.18 | -3,318 | 219,966 | 02 Oct 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Sale | -55.5% | -$369,400 | $18.47 | -20,000 | 16,057 | 01 Oct 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Options Exercise | 124.6% | 20,000 | 36,057 | 01 Oct 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Stock Option (Right to Buy) | Options Exercise | -23.2% | -20,000 | 66,260 | 01 Oct 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Common Stock | Sale | -55.5% | -$378,160 | $18.91 | -20,000 | 16,057 | 01 Sep 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Options Exercise | 124.6% | 20,000 | 36,057 | 01 Sep 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Stock Option (Right to Buy) | Options Exercise | -18.8% | -20,000 | 86,260 | 01 Sep 2026 | Direct | ||
| Laura A. Francis | SIBN | Common Stock | Sale | -8.18% | -$522,596 | $20.12 | -25,972 | 291,491 | 24 Aug 2026 | by Trust |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -4.95% | -$233,971 | $20.11 | -11,636 | 223,284 | 24 Aug 2026 | Direct |
| Laura A. Francis | SIBN | Common Stock | Sale | -1.22% | -$78,538 | $20.02 | -3,923 | 317,463 | 21 Aug 2026 | by Trust |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -4.56% | -$224,785 | $20.02 | -11,228 | 234,920 | 21 Aug 2026 | Direct |
| Laura A. Francis | SIBN | Common Stock | Sale | -13.9% | -$1,009,663 | $19.46 | -51,884 | 321,386 | 20 Aug 2026 | by Trust |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -2.28% | -$112,354 | $19.55 | -5,747 | 246,148 | 19 Aug 2026 | Direct |
| Laura A. Francis | SIBN | Common Stock | Sale | -2.96% | -$279,065 | $18.66 | -14,956 | 490,461 | 17 Aug 2026 | Direct |
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -1.34% | -$69,411 | $18.63 | -3,725 | 273,650 | 17 Aug 2026 | Direct |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.82% | -$87,016 | $18.65 | -4,665 | 251,895 | 17 Aug 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Sale | -55.5% | -$369,214 | $18.46 | -20,000 | 16,057 | 03 Aug 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Options Exercise | 124.6% | 20,000 | 36,057 | 03 Aug 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Stock Option (Right to Buy) | Options Exercise | -15.8% | -20,000 | 106,260 | 03 Aug 2026 | Direct | ||
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -1.12% | -$52,375 | $16.71 | -3,134 | 277,375 | 02 Jul 2026 | Direct |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.28% | -$55,627 | $16.77 | -3,317 | 256,560 | 02 Jul 2026 | Direct |
| Jeffrey W. Dunn | SIBN | Common Stock | Sale | -18.2% | -$54,505 | $15.25 | -3,575 | 16,057 | 05 Jun 2026 | Direct |
| Jeryl L. Hilleman | SIBN | Common stock | Award | 33.4% | 10,957 | 43,772 | 04 Jun 2026 | Direct | ||
| Jeffrey W. Dunn | SIBN | Common Stock | Award | 119.7% | 10,957 | 20,114 | 04 Jun 2026 | Direct | ||
| Mika Nishimura | SIBN | Common Stock | Award | 33.5% | 10,957 | 43,673 | 04 Jun 2026 | Direct | ||
| Thomas A. West | SIBN | Common Stock | Award | 40.6% | 10,957 | 37,947 | 04 Jun 2026 | Direct | ||
| John G. Freund | SIBN | Common Stock | Award | 25.3% | 10,957 | 54,258 | 04 Jun 2026 | Direct | ||
| Timothy E. Davis Jr. | SIBN | Common Stock | Award | 16.7% | 10,957 | 76,679 | 04 Jun 2026 | Direct | ||
| Timothy E. Davis Jr. | SIBN | Common Stock | Sale | -5.06% | -$49,488 | $14.14 | -3,500 | 65,722 | 29 May 2026 | Direct |
| Timothy E. Davis Jr. | SIBN | Common Stock | Sale | -5.18% | -$54,699 | $14.47 | -3,780 | 69,222 | 28 May 2026 | Direct |
| Timothy E. Davis Jr. | SIBN | Common Stock | Options Exercise | 19.8% | 12,064 | 73,002 | 28 May 2026 | Direct | ||
| Timothy E. Davis Jr. | SIBN | Stock Option (Right to Buy) | Options Exercise | -100% | -12,064 | 0 | 28 May 2026 | Direct | ||
| Laura A. Francis | SIBN | Common Stock | Sale | -2.89% | -$220,000 | $14.71 | -14,957 | 503,444 | 18 May 2026 | Direct |
| Michael A. Pisetsky | SIBN | Common Stock | Sale | -1.31% | -$54,527 | $14.63 | -3,726 | 280,509 | 18 May 2026 | Direct |
| Anshul Maheshwari | SIBN | Common Stock | Sale | -1.76% | -$68,523 | $14.69 | -4,666 | 259,877 | 18 May 2026 | Direct |
* marks a reported price that did not pass the local price check.