SENS · Senseonics Holdings, Inc. · Shareholders & Ownership

$7.51 +0.11 (+1.49%) At close · Oct 23

Russell 2000 member Rebalance outlook locked

Market Cap

$391.27M

52.87M

Volume · Oct 23 477.31K Avg daily vol (3M) 686.07K

Every disclosed holder of SENS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns SENS

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	114	20,851,471	39.44%	Yes
Insiders (Forms 3, 4, 5)	12	3,036,059	5.74%	Yes
13D/G-only blocks	1	2,501,750	4.73%	Yes
Remaining	—	26,484,773	50.09%	Rest
Registered funds (N-PORT, not summed)	77	5,034,280	9.52%	No

Shares outstanding: 52,874,053, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of SENS

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Sessa Capital IM, L.P. 13F CIK 1595849 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	4,437,532	8.39%	+2,671,439	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	Sessa Capital IM, L.P. 13G CIK 1595849 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	12,437,532	23.52%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
2	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	2,793,558	5.28%	+2,224,829	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,764,170	5.23%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
2.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	972,810	1.84%	—	Jun 30, 2026	iShares Trust, not summed
2.3	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	370,510	0.70%	—	Jun 30, 2026	iShares Trust, not summed
2.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	132,509	0.25%	—	Jun 30, 2026	iShares Trust, not summed
2.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	73,750	0.14%	—	Jun 30, 2026	Quantitative Master Series LLC, not summed
3	ROBERT J. SMITH 13G CIK 1502541 · Unknown · May 19, 2025 Rule 13d-1(c), passive investor	2,501,750	4.73%	—	May 19, 2025	Rule 13d-1(c), passive investor
4	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,779,398	3.37%	+162,201	Jun 30, 2026	carried, not yet filed for the newest quarter
5	Avidity Partners Management LP 13F CIK 1791827 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,600,000	3.03%	+1,600,000	Jun 30, 2026	carried, not yet filed for the newest quarter
6	Sio Capital Management, LLC 13F CIK 1482416 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,592,692	3.01%	+1,476,908	Jun 30, 2026	carried, not yet filed for the newest quarter
7	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,487,429	2.81%	+1,039,200	Jun 30, 2026	carried, not yet filed for the newest quarter
8	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,175,190	2.22%	+22,485	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
9	Goodnow Timothy T Insider CIK 1667588 · Jun 15, 2026 Director, President and CEO, issuer-wide	1,143,748	2.16%	-32,598	Jun 15, 2026	Director, President and CEO, issuer-wide
10	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,132,210	2.14%	+665,695	Jun 30, 2026	carried, not yet filed for the newest quarter
11	MASTERS CAPITAL MANAGEMENT LLC 13F CIK 1104186 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	700,000	1.32%	+200,000	Jun 30, 2026	carried, not yet filed for the newest quarter
12	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	559,672	1.06%	+133,959	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
13	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	511,117	0.97%	+330,836	Jun 30, 2026	carried, not yet filed for the newest quarter
13.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	4,500	0.01%	—	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
13.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	996	0.00%	—	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
13.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	249	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
14	JAIN Mukul Insider CIK 1667593 · Jun 15, 2026 Chief Operating Officer, issuer-wide	500,863	0.95%	-16,194	Jun 15, 2026	Chief Operating Officer, issuer-wide
15	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	405,695	0.77%	-58,680	Jun 30, 2026	carried, not yet filed for the newest quarter
16	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	394,465	0.75%	+337,501	Jun 30, 2026	carried, not yet filed for the newest quarter
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	393,211	0.74%	+172,034	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	179,484	0.34%	-2,834	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
17.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	96,032	0.18%	—	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
17.3	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	47,105	0.09%	+31,340	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
17.4	Schwab U.S. Broad Market ETF Fund S000026631 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	22,534	0.04%	0	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
18	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	332,266	0.63%	+249,989	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	20,553	0.04%	—	Jun 30, 2026	Northern Funds, not summed
19	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	331,353	0.63%	+106,186	Jun 30, 2026	carried, not yet filed for the newest quarter
20	Walleye Capital LLC 13F CIK 1758720 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	324,264	0.61%	+324,264	Jun 30, 2026	carried, not yet filed for the newest quarter
21	Horton Kenneth L Insider CIK 1552047 · Jun 15, 2026 GC & Corp. Development Advisor, issuer-wide	285,512	0.54%	-9,545	Jun 15, 2026	GC & Corp. Development Advisor, issuer-wide
22	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	272,375	0.52%	+272,375	Jun 30, 2026	carried, not yet filed for the newest quarter
23	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	231,509	0.44%	+85,227	Jun 30, 2026	carried, not yet filed for the newest quarter
23.1	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	14,922	0.03%	+4,737	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
24	Sullivan Frederick T. Insider CIK 1944539 · Jun 15, 2026 Chief Financial Officer, issuer-wide	226,477	0.43%	-5,397	Jun 15, 2026	Chief Financial Officer, issuer-wide
25	Kaufman Francine Insider CIK 1769791 · Jun 15, 2026 Director, Chief Medical Officer, issuer-wide	177,057	0.33%	-4,010	Jun 15, 2026	Director, Chief Medical Officer, issuer-wide
26	ROEDER DOUGLAS A Insider CIK 1270735 · Oct 1, 2026 Director, issuer-wide	172,671	0.33%	+1,480	Oct 1, 2026	Director, issuer-wide
27	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	164,984	0.31%	+41,041	Jun 30, 2026	carried, not yet filed for the newest quarter
28	Russell Investments Group, Ltd. 13F CIK 1692234 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	153,216	0.29%	+153,209	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	135,128	0.26%	+135,128	Jun 30, 2026	carried, not yet filed for the newest quarter
30	HANSEN BRIAN B Insider CIK 1542377 · Jun 15, 2026 Director, issuer-wide	126,937	0.24%	-5,420	Jun 15, 2026	Director, issuer-wide
31	Ghisallo Capital Management LLC 13F CIK 1825214 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	125,000	0.24%	+125,000	Jun 30, 2026	carried, not yet filed for the newest quarter
32	DeFalco Stephen P Insider CIK 1666964 · May 20, 2026 Director, issuer-wide	111,019	0.21%	+9,852	May 20, 2026	Director, issuer-wide
33	READYSTATE ASSET MANAGEMENT LP 13F CIK 1900923 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	101,000	0.19%	+101,000	Jun 30, 2026	carried, not yet filed for the newest quarter
34	Penn Capital Management Company, LLC 13F CIK 1158202 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	94,140	0.18%	+94,140	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Steven Edelman Insider CIK 1683354 · Oct 1, 2026 Director, issuer-wide	92,375	0.17%	+1,292	Oct 1, 2026	Director, issuer-wide
36	Fiorentino Edward Insider CIK 1666972 · Oct 1, 2026 Director, issuer-wide	87,392	0.17%	+1,418	Oct 1, 2026	Director, issuer-wide
37	SEI INVESTMENTS CO 13F CIK 350894 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	85,738	0.16%	+36,146	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	84,483	0.16%	+84,483	Jun 30, 2026	carried, not yet filed for the newest quarter
39	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	79,218	0.15%	-481,153	Jun 30, 2026	carried, not yet filed for the newest quarter
40	FOX RUN MANAGEMENT, L.L.C. 13F CIK 1533457 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	70,898	0.13%	+70,898	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Prince Douglas S Insider CIK 1666995 · Oct 1, 2026 Director, issuer-wide	70,146	0.13%	+815	Oct 1, 2026	Director, issuer-wide
42	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	68,300	0.13%	+18,700	Jun 30, 2026	carried, not yet filed for the newest quarter
42.1	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	62,100	0.12%	+12,500	Jun 30, 2026	Bridgeway Funds, Inc., not summed
43	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	59,701	0.11%	+59,659	Jun 30, 2026	carried, not yet filed for the newest quarter
44	TOCQUEVILLE ASSET MANAGEMENT L.P. 13F CIK 883961 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	55,500	0.11%	+22,000	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	52,133	0.10%	+52,133	Jun 30, 2026	carried, not yet filed for the newest quarter
45.1	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	52,133	0.10%	—	Jul 31, 2026	TIAA-CREF Funds, not summed
46	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	51,275	0.10%	+32,375	Jun 30, 2026	carried, not yet filed for the newest quarter
46.1	T. Rowe Price Extended Equity Market Index Fund Fund S000002090 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	18,900	0.04%	0	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
46.2	T. Rowe Price Small-Cap Index Fund Fund S000051327 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	5,949	0.01%	—	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
47	Stonepine Capital Management, LLC 13F CIK 1440771 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	48,680	0.09%	+48,680	Jun 30, 2026	carried, not yet filed for the newest quarter
48	Centiva Capital, LP 13F CIK 1692507 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	43,975	0.08%	+19,313	Jun 30, 2026	carried, not yet filed for the newest quarter
49	RHUMBLINE ADVISERS 13F CIK 1115418 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	42,790	0.08%	+42,790	Jun 30, 2026	carried, not yet filed for the newest quarter
50	EQ/2000 Managed Volatility Portfolio Fund S000025800 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	42,291	0.08%	—	Jun 30, 2026	EQ Advisors Trust, not summed

3 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 165 holders

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Key facts CIK 1616543 CUSIP 81727U303 13F (30d) 11 filings 11 filers Visit website Investor relations