NXTC · NextCure, Inc. · Shareholders & Ownership

$4.80 +0.08 (+1.69%)

Market Cap

$21.61M

4.58M

Volume · Oct 23 45.14K Avg daily vol (3M) 192.74K

Every disclosed holder of NXTC 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 NXTC

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)	30	1,736,115	37.93%	Yes
Insiders (Forms 3, 4, 5)	2	1,031,055	22.53%	Yes
13D/G-only blocks	5	1,059,813	23.15%	Yes
Remaining	—	750,376	16.39%	Rest
Registered funds (N-PORT, not summed)	13	209,632	4.58%	No

Shares outstanding: 4,577,359, 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 NXTC

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	ADAR1 Capital Management, LLC 13G CIK 1940272 · Registered investment adviser · Jul 31, 2026 Rule 13d-1(b), qualified institution, not summed	722,419	15.78%	—	Jul 31, 2026	Rule 13d-1(b), qualified institution, not summed
1.1	ADAR1 Capital Management, LLC Insider CIK 1940272 · Jul 31, 2026 10% Owner, issuer-wide	722,419	15.78%	+329,153	Jul 31, 2026	10% Owner, issuer-wide
2	JP Sailing Capital Ltd 13G CIK 2103371 · Unknown · Sep 30, 2026 Rule 13d-1(b), qualified institution	455,001	9.94%	—	Sep 30, 2026	Rule 13d-1(b), qualified institution
3	Simcere Zaiming, Inc. Insider CIK 2080252 · Aug 10, 2026 10% Owner, issuer-wide	308,636	6.74%	+280,416	Aug 10, 2026	10% Owner, issuer-wide
3.1	Simcere Zaiming, Inc. 13G CIK 2080252 · Unknown · Dec 31, 2025 Rule 13d-1(c), passive investor, not summed	338,636	7.40%	+310,416	Dec 31, 2025	Rule 13d-1(c), passive investor, not summed
4	Ikarian Capital, LLC 13F CIK 1778253 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	288,303	6.30%	+50,000	Jun 30, 2026	carried, not yet filed for the newest quarter
4.1	Ikarian Capital, LLC 13G CIK 1778253 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	502,672	10.98%	+139,637	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
5	ADAGE CAPITAL PARTNERS GP, L.L.C. 13F CIK 1165408 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	277,202	6.06%	+277,202	Jun 30, 2026	carried, not yet filed for the newest quarter
5.1	Adage Capital Management, L.P. 13G CIK 1535978 · Investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	277,202	6.06%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
6	Sofinnova Investments, Inc. 13F CIK 1631134 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	222,654	4.86%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
7	Sofinnova Venture Partners IX, L.P. ("SVP IX") 13D CIK 1612133 · Unknown · Dec 19, 2025	222,654	4.86%	—	Dec 19, 2025
8	SILVERARC CAPITAL MANAGEMENT, LLC 13G CIK 1816307 · Registered investment adviser · Mar 31, 2026 Rule 13d-1(b), qualified institution	176,057	3.85%	0	Mar 31, 2026	Rule 13d-1(b), qualified institution
9	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	171,202	3.74%	+110,668	Jun 30, 2026	carried, not yet filed for the newest quarter
10	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	156,842	3.43%	-3,631	Jun 30, 2026	carried, not yet filed for the newest quarter
11	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	123,276	2.69%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
12	ORBIMED ADVISORS LLC 13D CIK 1055951 · Registered investment adviser · Mar 6, 2024	105,668	2.31%	—	Mar 6, 2024
13	CITIGROUP INC 13G CIK 831001 · Bank · Mar 31, 2025 Rule 13d-1(b), qualified institution	100,433	2.19%	—	Mar 31, 2025	Rule 13d-1(b), qualified institution
14	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	88,112	1.93%	+88,112	Jun 30, 2026	carried, not yet filed for the newest quarter
15	BOOTHBAY FUND MANAGEMENT, LLC 13F CIK 1549230 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	84,687	1.85%	+15,070	Jun 30, 2026	carried, not yet filed for the newest quarter
16	Squadron Capital Management LLC 13F CIK 2050709 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	64,464	1.41%	-200,536	Jun 30, 2026	carried, not yet filed for the newest quarter
16.1	Squadron Capital Management LLC 13G CIK 2050709 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	64,464	1.41%	-206,663	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
17	Verdad Advisers, LP 13F CIK 1812822 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	60,451	1.32%	+17,496	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Pfizer Inc 13F CIK 78003 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	44,347	0.97%	-109,007	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Affinity Asset Advisors, LLC 13F CIK 1773195 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	41,960	0.92%	-199,866	Jun 30, 2026	carried, not yet filed for the newest quarter
19.1	Affinity Asset Advisors, LLC 13G CIK 1773195 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	274,073	5.99%	-74,534	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
20	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	37,348	0.82%	+9,555	Jun 30, 2026	carried, not yet filed for the newest quarter
20.1	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	9,851	0.22%	—	Jun 30, 2026	iShares Trust, not summed
20.2	Diversified Equity Alpha Master Portfolio Fund S000004282 · Registered fund · Jun 30, 2026 Master Investment Portfolio, not summed	689	0.02%	0	Jun 30, 2026	Master Investment Portfolio, not summed
21	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	36,450	0.80%	+36,450	Jun 30, 2026	carried, not yet filed for the newest quarter
22	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	33,566	0.73%	-119	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
23	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	32,725	0.71%	+32,725	Jun 30, 2026	carried, not yet filed for the newest quarter
24	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	29,905	0.65%	-1,187	Jun 30, 2026	carried, not yet filed for the newest quarter
25	CARDIFF PARK ADVISORS, LLC 13F CIK 1910000 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	21,833	0.48%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
26	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	18,982	0.41%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	16,250	0.36%	+3,301	May 31, 2026	Fidelity Concord Street Trust, not summed
28	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	16,134	0.35%	+119	Jun 30, 2026	carried, not yet filed for the newest quarter
29	NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 13F CIK 921739 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	12,500	0.27%	+12,500	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Nomura Healthcare Fund Fund S000018873 · Registered fund · Jun 30, 2026 Delaware Group Equity Funds IV, not summed	12,500	0.27%	0	Jun 30, 2026	Delaware Group Equity Funds IV, not summed
30	Virtu Financial LLC 13F CIK 1533964 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	10,991	0.24%	+10,991	Jun 30, 2026	carried, not yet filed for the newest quarter
31	DIADEMA PARTNERS LP 13F CIK 2026172 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,742	0.17%	+7,742	Jun 30, 2026	carried, not yet filed for the newest quarter
32	BARCLAYS PLC 13F CIK 312069 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	5,726	0.13%	+100	Jun 30, 2026	carried, not yet filed for the newest quarter
33	Fidelity Series Total Market Index Fund Fund S000065248 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	3,997	0.09%	+1,152	May 31, 2026	Fidelity Concord Street Trust, not summed
34	Fidelity Total Market Index Fund Fund S000006026 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	3,634	0.08%	0	May 31, 2026	Fidelity Concord Street Trust, not summed
35	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	3,000	0.07%	—	Jun 30, 2026	Bridgeway Funds, Inc., not summed
36	Fidelity Nasdaq Composite Index Fund Fund S000055366 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	2,047	0.04%	+1,302	May 31, 2026	Fidelity Concord Street Trust, not summed
37	Persistent Asset Partners Ltd 13F CIK 2056052 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,981	0.04%	+1,981	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Tower Research Capital LLC (TRC) 13F CIK 1533421 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,738	0.04%	+1,738	Jun 30, 2026	carried, not yet filed for the newest quarter
39	SBI Securities Co., Ltd. 13F CIK 1851815 · Non-US institution · Sep 30, 2026	1,000	0.02%	+980	Sep 30, 2026
40	1290 VT Micro Cap Portfolio Fund S000044688 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	741	0.02%	—	Jun 30, 2026	EQ Advisors Trust, not summed
41	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	594	0.01%	+256	Jun 30, 2026	carried, not yet filed for the newest quarter
42	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 13F CIK 1141802 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	83	0.00%	+83	Jun 30, 2026	carried, not yet filed for the newest quarter
43	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	66	0.00%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
44	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	61	0.00%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	59	0.00%	—	Jul 31, 2026	Dimensional ETF Trust, not summed
46	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	32	0.00%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
47	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	22	0.00%	—	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed

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.

Key facts CIK 1661059 CUSIP 65343E207 13F (30d) 1 filings 1 filers Visit website Investor relations