On this page, we present all of the funds holding SIBN from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding SIBN, with a link to that fund's top holdings. The next columns indicate the amount of SIBN stock held by each of the funds holding SIBN, followed by the SIBN position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 157 funds holding SIBN within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Brown Advisory Inc.. For more details on the positions held by Brown Advisory Inc. (or by any of the other funds holding SIBN), click the fund name in the "Holder" column of the funds-holding-SIBN table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Brown Advisory Inc.	4,207,703	$88,320	12/31/2023
SIBN	4,207,703	$88,320	12/31/2023
BlackRock Inc.	3,907,197	$82,012	12/31/2023
SIBN	3,907,197	$82,012	12/31/2023
First Light Asset Management LLC	2,547,392	$53,470	12/31/2023
SIBN	2,547,392	$53,470	12/31/2023
Vanguard Group Inc.	2,419,831	$50,792	12/31/2023
SIBN	2,419,831	$50,792	12/31/2023
Orbimed Advisors LLC	2,292,531	$48,120	12/31/2023
SIBN	2,292,531	$48,120	12/31/2023
Next Century Growth Investors LLC	1,398,413	$29,353	12/31/2023
SIBN	1,398,413	$29,353	12/31/2023
Granahan Investment Management Inc. MA	1,286,450	$27,003	12/31/2023
SIBN	1,286,450	$27,003	12/31/2023
Champlain Investment Partners LLC	1,197,537	$25,136	12/31/2023
SIBN	1,197,537	$25,136	12/31/2023
Millennium Management LLC		$24,985	12/31/2023
SIBN	1,210,324	$25,405	12/31/2023
Put	20,000	$420	12/31/2023
American Century Companies Inc.	1,179,524	$24,758	12/31/2023
SIBN	1,179,524	$24,758	12/31/2023
Morgan Stanley	1,033,328	$21,690	12/31/2023
SIBN	1,033,328	$21,690	12/31/2023
State Street Corp	971,317	$20,388	12/31/2023
SIBN	971,317	$20,388	12/31/2023
Nuveen Asset Management LLC	945,713	$19,851	12/31/2023
SIBN	945,713	$19,851	12/31/2023
Silvercrest Asset Management Group LLC	932,235	$19,568	12/31/2023
SIBN	932,235	$19,568	12/31/2023
Geode Capital Management LLC	826,859	$17,358	12/31/2023
SIBN	826,859	$17,358	12/31/2023
Wellington Management Group LLP	817,048	$17,150	12/31/2023
SIBN	817,048	$17,150	12/31/2023
Holocene Advisors LP	585,311	$12,286	12/31/2023
SIBN	585,311	$12,286	12/31/2023
Dimensional Fund Advisors LP	523,677	$10,992	12/31/2023
SIBN	523,677	$10,992	12/31/2023
Impax Asset Management Group plc	475,343	$9,977	12/31/2023
SIBN	475,343	$9,977	12/31/2023
Assenagon Asset Management S.A.	419,940	$8,815	12/31/2023
SIBN	419,940	$8,815	12/31/2023
Paradigm Capital Management Inc. NY	404,000	$8,480	12/31/2023
SIBN	404,000	$8,480	12/31/2023
Kent Lake Capital LLC	400,000	$8,396	12/31/2023
SIBN	400,000	$8,396	12/31/2023
Northern Trust Corp	369,521	$7,756	12/31/2023
SIBN	369,521	$7,756	12/31/2023
Intrinsic Edge Capital Management LLC	347,556	$7,295	12/31/2023
SIBN	347,556	$7,295	12/31/2023
Soleus Capital Management L.P.	341,818	$7,175	12/31/2023
SIBN	341,818	$7,175	12/31/2023
Marshall Wace LLP	320,506	$6,727	12/31/2023
SIBN	320,506	$6,727	12/31/2023
Victory Capital Management Inc.	320,196	$6,721	12/31/2023
SIBN	320,196	$6,721	12/31/2023
Integral Health Asset Management LLC	315,000	$6,612	12/31/2023
SIBN	315,000	$6,612	12/31/2023
Charles Schwab Investment Management Inc.	297,582	$6,246	12/31/2023
SIBN	297,582	$6,246	12/31/2023
Two Sigma Advisers LP	297,100	$6,236	12/31/2023
SIBN	297,100	$6,236	12/31/2023
Meridian Investment Counsel Inc.	296,368	$6,221	12/31/2023
SIBN	296,368	$6,221	12/31/2023
Two Sigma Investments LP	290,789	$6,104	12/31/2023
SIBN	290,789	$6,104	12/31/2023
Oberweis Asset Management Inc.	287,100	$6,026	12/31/2023
SIBN	287,100	$6,026	12/31/2023
Goldman Sachs Group Inc.	249,752	$5,242	12/31/2023
SIBN	249,752	$5,242	12/31/2023
Amundi	224,069	$4,502	12/31/2023
SIBN	224,069	$4,502	12/31/2023
Pier Capital LLC	210,327	$4,415	12/31/2023
SIBN	210,327	$4,415	12/31/2023
D. E. Shaw & Co. Inc.	201,127	$4,222	12/31/2023
SIBN	201,127	$4,222	12/31/2023
Principal Financial Group Inc.	196,968	$4,134	12/31/2023
SIBN	196,968	$4,134	12/31/2023
JPMorgan Chase & Co.	175,460	$3,683	12/31/2023
SIBN	175,460	$3,683	12/31/2023
Qube Research & Technologies Ltd	156,754	$3,290	12/31/2023
SIBN	156,754	$3,290	12/31/2023
Parkman Healthcare Partners LLC	145,575	$3,056	12/31/2023
SIBN	145,575	$3,056	12/31/2023
Royce & Associates LP	145,000	$3,044	12/31/2023
SIBN	145,000	$3,044	12/31/2023
Bank of New York Mellon Corp	140,515	$2,949	12/31/2023
SIBN	140,515	$2,949	12/31/2023
Renaissance Technologies LLC	132,700	$2,785	12/31/2023
SIBN	132,700	$2,785	12/31/2023
Allspring Global Investments Holdings LLC	166,720	$2,729	03/31/2024
SIBN	166,720	$2,729	03/31/2024
Ameriprise Financial Inc.	129,122	$2,710	12/31/2023
SIBN	129,122	$2,710	12/31/2023
Macquarie Group Ltd.	126,301	$2,651	12/31/2023
SIBN	126,301	$2,651	12/31/2023
Bellevue Group AG	125,200	$2,628	12/31/2023
SIBN	125,200	$2,628	12/31/2023
Allianz Asset Management GmbH	120,831	$2,536	12/31/2023
SIBN	120,831	$2,536	12/31/2023
BNP Paribas Arbitrage SA	117,815	$2,473	12/31/2023
SIBN	117,815	$2,473	12/31/2023
Moody Aldrich Partners LLC	115,466	$2,424	12/31/2023
SIBN	115,466	$2,424	12/31/2023
Russell Investments Group Ltd.	112,441	$2,360	12/31/2023
SIBN	112,441	$2,360	12/31/2023
Bullseye Asset Management LLC	102,024	$2,141	12/31/2023
SIBN	102,024	$2,141	12/31/2023
Point72 Asset Management L.P.	100,145	$2,102	12/31/2023
SIBN	100,145	$2,102	12/31/2023
Cubist Systematic Strategies LLC	97,748	$2,052	12/31/2023
SIBN	97,748	$2,052	12/31/2023
Jane Street Group LLC	93,717	$1,967	12/31/2023
SIBN	93,717	$1,967	12/31/2023
Barclays PLC	80,964	$1,698	12/31/2023
SIBN	80,964	$1,698	12/31/2023
Balyasny Asset Management LLC	77,627	$1,629	12/31/2023
SIBN	77,627	$1,629	12/31/2023
Swiss National Bank	75,300	$1,581	12/31/2023
SIBN	75,300	$1,581	12/31/2023
New York State Common Retirement Fund	74,436	$1,562	12/31/2023
SIBN	74,436	$1,562	12/31/2023
Trexquant Investment LP	74,021	$1,554	12/31/2023
SIBN	74,021	$1,554	12/31/2023
Credit Suisse AG	66,987	$1,406	12/31/2023
SIBN	66,987	$1,406	12/31/2023
Citadel Advisors LLC		$1,404	12/31/2023
SIBN	60,681	$1,274	12/31/2023
Call	7,400	$155	12/31/2023
Put	1,200	$25	12/31/2023
VELA Investment Management LLC	61,577	$1,293	12/31/2023
SIBN	61,577	$1,293	12/31/2023
UBS Group AG	57,354	$1,204	12/31/2023
SIBN	57,354	$1,204	12/31/2023
Rhumbline Advisers	56,775	$1,192	12/31/2023
SIBN	56,775	$1,192	12/31/2023
Bank of America Corp DE	54,461	$1,143	12/31/2023
SIBN	54,461	$1,143	12/31/2023
Squarepoint Ops LLC	53,691	$1,127	12/31/2023
SIBN	53,691	$1,127	12/31/2023
Lisanti Capital Growth LLC	51,915	$1,090	12/31/2023
SIBN	51,915	$1,090	12/31/2023
Susquehanna International Group LLP		$1,055	12/31/2023
Call	28,000	$588	12/31/2023
SIBN	22,270	$467	12/31/2023
ClariVest Asset Management LLC	49,583	$1,041	12/31/2023
SIBN	49,583	$1,041	12/31/2023
Schonfeld Strategic Advisors LLC	47,798	$1,003	12/31/2023
SIBN	47,798	$1,003	12/31/2023
Petrus Trust Company LTA	47,489	$997	12/31/2023
SIBN	47,489	$997	12/31/2023
Twinbeech Capital LP	44,455	$933	12/31/2023
SIBN	44,455	$933	12/31/2023
Bridgewater Associates LP	42,232	$886	12/31/2023
SIBN	42,232	$886	12/31/2023
California State Teachers Retirement System	40,573	$852	12/31/2023
SIBN	40,573	$852	12/31/2023
Sei Investments Co.	40,290	$846	12/31/2023
SIBN	40,290	$846	12/31/2023
UBS Asset Management Americas Inc.	37,393	$785	12/31/2023
SIBN	37,393	$785	12/31/2023
Legal & General Group Plc	36,489	$766	12/31/2023
SIBN	36,489	$766	12/31/2023
Federated Hermes Inc.	31,912	$670	12/31/2023
SIBN	31,912	$670	12/31/2023
Alliancebernstein L.P.	30,700	$644	12/31/2023
SIBN	30,700	$644	12/31/2023
Invesco Ltd.	29,775	$625	12/31/2023
SIBN	29,775	$625	12/31/2023
Calamos Advisors LLC	29,554	$620	12/31/2023
SIBN	29,554	$620	12/31/2023
Campbell & CO Investment Adviser LLC	29,530	$620	12/31/2023
SIBN	29,530	$620	12/31/2023
Alpha DNA Investment Management LLC	26,495	$556	12/31/2023
SIBN	26,495	$556	12/31/2023
Algert Global LLC	25,776	$541	12/31/2023
SIBN	25,776	$541	12/31/2023
Manchester Capital Management LLC	25,107	$527	12/31/2023
SIBN	25,107	$527	12/31/2023
AQR Capital Management LLC	24,753	$520	12/31/2023
SIBN	24,753	$520	12/31/2023
Mach 1 Financial Group Inc.	23,492	$493	12/31/2023
SIBN	23,492	$493	12/31/2023
AE Wealth Management LLC	23,368	$457	12/31/2023
SIBN	23,368	$457	12/31/2023
MetLife Investment Management LLC	21,105	$443	12/31/2023
SIBN	21,105	$443	12/31/2023
Bessemer Group Inc.	21,059	$442	12/31/2023
SIBN	21,059	$442	12/31/2023
Royal Bank of Canada	20,785	$436	12/31/2023
SIBN	20,785	$436	12/31/2023
Putnam Investments LLC	20,700	$434	12/31/2023
SIBN	20,700	$434	12/31/2023
American International Group Inc.	19,773	$415	12/31/2023
SIBN	19,773	$415	12/31/2023
Dynamic Technology Lab Private Ltd	19,605	$412	12/31/2023
SIBN	19,605	$412	12/31/2023
Price T Rowe Associates Inc. MD	19,122	$402	12/31/2023
SIBN	19,122	$402	12/31/2023
HighMark Wealth Management LLC	19,000	$399	12/31/2023
SIBN	19,000	$399	12/31/2023
Great West Life Assurance Co. Can	17,847	$372	12/31/2023
SIBN	17,847	$372	12/31/2023
New York Life Investment Management LLC	17,556	$368	12/31/2023
SIBN	17,556	$368	12/31/2023
Deutsche Bank AG	17,209	$361	12/31/2023
SIBN	17,209	$361	12/31/2023
Diversified Trust Co	20,710	$339	03/31/2024
SIBN	20,710	$339	03/31/2024
Occudo Quantitative Strategies LP	15,724	$330	12/31/2023
SIBN	15,724	$330	12/31/2023
Franklin Resources Inc.	15,420	$324	12/31/2023
SIBN	15,420	$324	12/31/2023
The Manufacturers Life Insurance Company	15,253	$320	12/31/2023
SIBN	15,253	$320	12/31/2023
Voya Investment Management LLC	14,815	$311	12/31/2023
SIBN	14,815	$311	12/31/2023
Mirae Asset Global Investments Co. Ltd.	14,825	$311	12/31/2023
SIBN	14,825	$311	12/31/2023
Quantbot Technologies LP	14,615	$307	12/31/2023
SIBN	14,615	$307	12/31/2023
Nebula Research & Development LLC	14,229	$299	12/31/2023
SIBN	14,229	$299	12/31/2023
Aquatic Capital Management LLC	13,300	$279	12/31/2023
SIBN	13,300	$279	12/31/2023
HighTower Advisors LLC	13,067	$276	12/31/2023
SIBN	13,067	$276	12/31/2023
Glenmede Trust Co. NA	13,105	$275	12/31/2023
SIBN	13,105	$275	12/31/2023
Wells Fargo & Company MN	12,802	$269	12/31/2023
SIBN	12,802	$269	12/31/2023
Bailard Inc.	12,800	$269	12/31/2023
SIBN	12,800	$269	12/31/2023
US Bancorp DE	12,709	$267	12/31/2023
SIBN	12,709	$267	12/31/2023
Fox Run Management L.L.C.	12,401	$260	12/31/2023
SIBN	12,401	$260	12/31/2023
Janus Henderson Group PLC	12,049	$253	12/31/2023
SIBN	12,049	$253	12/31/2023
Semanteon Capital Management LP	11,981	$251	12/31/2023
SIBN	11,981	$251	12/31/2023
XTX Topco Ltd	11,354	$238	12/31/2023
SIBN	11,354	$238	12/31/2023
Arizona State Retirement System	10,675	$224	12/31/2023
SIBN	10,675	$224	12/31/2023
State Board of Administration of Florida Retirement System	10,330	$217	12/31/2023
SIBN	10,330	$217	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	8,541	$179	12/31/2023
SIBN	8,541	$179	12/31/2023
EntryPoint Capital LLC	7,793	$164	12/31/2023
SIBN	7,793	$164	12/31/2023
Tower Research Capital LLC TRC	7,364	$155	12/31/2023
SIBN	7,364	$155	12/31/2023
Citigroup Inc.	5,619	$118	12/31/2023
SIBN	5,619	$118	12/31/2023
Sandia Investment Management LP	4,546	$95	12/31/2023
SIBN	4,546	$95	12/31/2023
Ameritas Investment Partners Inc.	4,118	$86	12/31/2023
SIBN	4,118	$86	12/31/2023
Advisor Group Holdings Inc.	3,776	$79	12/31/2023
SIBN	3,776	$79	12/31/2023
Lee Financial Co	3,700	$78	12/31/2023
SIBN	3,700	$78	12/31/2023
RiverPark Advisors LLC	3,151	$66	12/31/2023
SIBN	3,151	$66	12/31/2023
FMR LLC	2,957	$62	12/31/2023
SIBN	2,957	$62	12/31/2023
Lazard Asset Management LLC	2,789	$58	12/31/2023
SIBN	2,789	$58	12/31/2023
Larson Financial Group LLC	2,500	$52	12/31/2023
SIBN	2,500	$52	12/31/2023
Metropolitan Life Insurance Co NY	2,212	$46	12/31/2023
SIBN	2,212	$46	12/31/2023
Comerica Bank	2,205	$46	12/31/2023
SIBN	2,205	$46	12/31/2023
Arcadia Investment Management Corp MI	2,075	$34	03/31/2024
SIBN	2,075	$34	03/31/2024
Coppell Advisory Solutions LLC	1,525	$32	12/31/2023
SIBN	1,525	$32	12/31/2023
Quarry LP	1,318	$28	12/31/2023
SIBN	1,318	$28	12/31/2023
Amalgamated Bank	1,357	$22	03/31/2024
SIBN	1,357	$22	03/31/2024
MCF Advisors LLC	1,286	$21	03/31/2024
SIBN	1,286	$21	03/31/2024
Group One Trading L.P.		$10	12/31/2023
Call	300	$6	12/31/2023
SIBN	170	$4	12/31/2023
Cetera Trust Company N.A	500	$10	12/31/2023
SIBN	500	$10	12/31/2023
Macroview Investment Management LLC	356	$7	12/31/2023
SIBN	356	$7	12/31/2023
Quadrant Capital Group LLC	277	$6	12/31/2023
SIBN	277	$6	12/31/2023
AJOVista LLC	303	$6	12/31/2023
SIBN	303	$6	12/31/2023
The PNC Financial Services Group Inc.	223	$5	12/31/2023
SIBN	223	$5	12/31/2023
Hillsdale Investment Management Inc.	220	$5	12/31/2023
SIBN	220	$5	12/31/2023
Simplex Trading LLC		$5	12/31/2023
SIBN	352	$7	12/31/2023
Put	100	$2	12/31/2023
Signaturefd LLC	190	$4	12/31/2023
SIBN	190	$4	12/31/2023
Principal Securities Inc.	159	$3	12/31/2023
SIBN	159	$3	12/31/2023
Focused Wealth Management Inc	127	$3	12/31/2023
SIBN	127	$3	12/31/2023
CWM LLC	149	$2	03/31/2024
SIBN	149	$2	03/31/2024
Valley National Advisers Inc.	80	$1	03/31/2024
SIBN	80	$1	03/31/2024
GAMMA Investing LLC	34	$1	03/31/2024
SIBN	34	$1	03/31/2024
Clearstead Advisors LLC	62	$1	12/31/2023
SIBN	62	$1	12/31/2023
Farther Finance Advisors LLC	28	$1	12/31/2023
SIBN	28	$1	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
Call	0	$0	12/31/2023
SIBN	0	$0	12/31/2023
Covestor Ltd	4	$0	12/31/2023
SIBN	4	$0	12/31/2023