AMSC · American Superconductor Corp · Shareholders & Ownership

$27.68 -0.51 (-1.81%) Q1 2027 earnings call transcript

Russell 2000 member Rebalance outlook locked

Market Cap

$1.37B

48.44M

Volume · Oct 29 616.8K Avg daily vol (3M) 719.14K

Every disclosed holder of AMSC 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 AMSC

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)	280	35,916,737	74.14%	Yes
Insiders (Forms 3, 4, 5)	8	1,669,806	3.45%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	10,855,600	22.41%	Rest
Registered funds (N-PORT, not summed)	225	14,484,576	29.90%	No

Shares outstanding: 48,442,143, 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 AMSC

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	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	4,095,371	8.45%	+112,721	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	1,222,695	2.52%	+97,019	Jun 30, 2026	iShares Trust, not summed
1.2	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	435,023	0.90%	+58,517	Jun 30, 2026	iShares Trust, not summed
1.3	BlackRock Advantage Small Cap Core Fund Fund S000039982 · Registered fund · Aug 31, 2026 BlackRock Funds, not summed	155,919	0.32%	+48,984	Aug 31, 2026	BlackRock Funds, not summed
1.4	iShares U.S. Small-Cap Equity Factor ETF Fund S000048624 · Registered fund · Jul 31, 2026 iShares Trust, not summed	126,073	0.26%	+8,863	Jul 31, 2026	iShares Trust, not summed
1.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	85,126	0.18%	+11,765	Jun 30, 2026	Quantitative Master Series LLC, not summed
2	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,034,219	4.20%	-5,249	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	VANGUARD CAPITAL MANAGEMENT LLC 13G CIK 2100119 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,390,425	4.93%	+5,689	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
3	BARROW HANLEY MEWHINNEY & STRAUSS LLC 13F CIK 313028 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,704,006	3.52%	+564,213	Jun 30, 2026	carried, not yet filed for the newest quarter
4	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,441,062	2.97%	-21,226	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
5	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,429,090	2.95%	+829,269	Jun 30, 2026	carried, not yet filed for the newest quarter
6	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,418,863	2.93%	-292,814	Jun 30, 2026	carried, not yet filed for the newest quarter
7	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,358,225	2.80%	+97,154	Jun 30, 2026	carried, not yet filed for the newest quarter
7.1	State Street(R) SPDR(R) S&P Kensho Clean Power ETF Fund S000063360 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	135,940	0.28%	+10,379	Jun 30, 2026	SPDR SERIES TRUST, not summed
7.2	State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF Fund S000063362 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	103,496	0.21%	-12,627	Jun 30, 2026	SPDR SERIES TRUST, not summed
7.3	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	16,100	0.03%	+300	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
7.4	State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF Fund S000036082 · Registered fund · Jun 30, 2026 SPDR INDEX SHARES FUNDS, not summed	3,804	0.01%	+459	Jun 30, 2026	SPDR INDEX SHARES FUNDS, not summed
7.5	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	1,190	0.00%	+161	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
8	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,294,047	2.67%	+584,543	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	Goldman Sachs Small Cap Equity Insights Fund Fund S000009329 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	78,462	0.16%	+29,312	Jul 31, 2026	Goldman Sachs Trust, not summed
8.2	Goldman Sachs Small Cap Value Insights Fund Fund S000014929 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	35,545	0.07%	+11,272	Jul 31, 2026	Goldman Sachs Trust, not summed
8.3	Goldman Sachs Small Cap Growth Insights Fund Fund S000014930 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	35,524	0.07%	+6,237	Jul 31, 2026	Goldman Sachs Trust, not summed
8.4	Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Fund S000009355 · Registered fund · Jun 30, 2026 Goldman Sachs Variable Insurance Trust, not summed	18,091	0.04%	+4,191	Jun 30, 2026	Goldman Sachs Variable Insurance Trust, not summed
8.5	Goldman Sachs Innovate Equity ETF Fund S000068597 · Registered fund · Aug 31, 2026 Goldman Sachs ETF Trust, not summed	6,143	0.01%	+1,665	Aug 31, 2026	Goldman Sachs ETF Trust, not summed
9	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,243,198	2.57%	+74,046	Jun 30, 2026	carried, not yet filed for the newest quarter
10	FIRST TRUST ADVISORS LP 13F CIK 1125816 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,168,424	2.41%	+390,156	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	First Trust Small Cap Growth AlphaDEX Fund Fund S000031806 · Registered fund · Jul 31, 2026 First Trust Exchange-Traded AlphaDEX Fund, not summed	124,448	0.26%	+22,907	Jul 31, 2026	First Trust Exchange-Traded AlphaDEX Fund, not summed
10.2	First Trust NASDAQ Clean Edge Green Energy Index Fund Fund S000015169 · Registered fund · Jun 30, 2026 First Trust Exchange-Traded Fund, not summed	118,129	0.24%	+17,530	Jun 30, 2026	First Trust Exchange-Traded Fund, not summed
10.3	First Trust Small Cap Core AlphaDEX Fund Fund S000017339 · Registered fund · Jul 31, 2026 First Trust Exchange-Traded AlphaDEX Fund, not summed	42,030	0.09%	+1,119	Jul 31, 2026	First Trust Exchange-Traded AlphaDEX Fund, not summed
10.4	First Trust Multi Cap Growth AlphaDEX Fund Fund S000017343 · Registered fund · Jul 31, 2026 First Trust Exchange-Traded AlphaDEX Fund, not summed	11,274	0.02%	+1,807	Jul 31, 2026	First Trust Exchange-Traded AlphaDEX Fund, not summed
10.5	First Trust Multi-Manager Small Cap Opportunities ETF Fund S000073489 · Registered fund · Aug 31, 2026 First Trust Exchange-Traded Fund VIII, not summed	5,315	0.01%	+982	Aug 31, 2026	First Trust Exchange-Traded Fund VIII, not summed
11	McGahn Daniel P Insider CIK 1425153 · Jun 11, 2026 Director, Chairman, President and CEO, issuer-wide	1,145,273	2.36%	-16,117	Jun 11, 2026	Director, Chairman, President and CEO, issuer-wide
12	OBERWEIS ASSET MANAGEMENT INC/ 13F CIK 937886 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	987,500	2.04%	+137,600	Jun 30, 2026	carried, not yet filed for the newest quarter
12.1	Oberweis Micro-Cap Fund Fund S000010231 · Registered fund · Jun 30, 2026 OBERWEIS FUNDS, not summed	925,300	1.91%	+140,100	Jun 30, 2026	OBERWEIS FUNDS, not summed
12.2	Oberweis Global Opportunities Fund Fund S000010230 · Registered fund · Jun 30, 2026 OBERWEIS FUNDS, not summed	27,500	0.06%	0	Jun 30, 2026	OBERWEIS FUNDS, not summed
13	AWM Investment Company, Inc. 13F CIK 1535264 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	951,604	1.96%	+150,000	Jun 30, 2026	carried, not yet filed for the newest quarter
14	BAILLIE GIFFORD & CO 13F CIK 1088875 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	933,308	1.93%	-514,111	Jun 30, 2026	carried, not yet filed for the newest quarter
15	EMERALD ADVISERS, LLC 13F CIK 1015083 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	843,956	1.74%	+86,552	Jun 30, 2026	carried, not yet filed for the newest quarter
16	Legal & General Group Plc 13F CIK 764068 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	756,863	1.56%	+226,732	Jun 30, 2026	carried, not yet filed for the newest quarter
17	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	645,991	1.33%	-12,306	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	124,381	0.26%	-15,007	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17.2	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	99,520	0.21%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17.3	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	94,692	0.20%	-45,286	Jul 31, 2026	Dimensional ETF Trust, not summed
17.4	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	48,385	0.10%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
17.5	U.S. CORE EQUITY 2 PORTFOLIO Fund S000000980 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	36,067	0.07%	-7,673	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
18	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	635,833	1.31%	+1,992	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	E*TRADE No Fee Total Market Index Fund Fund S000090722 · Registered fund · Jul 31, 2026 E Trade Trust, not summed	20	0.00%	0	Jul 31, 2026	E Trade Trust, not summed
19	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	628,406	1.30%	-392,541	Jun 30, 2026	carried, not yet filed for the newest quarter
19.1	Nuveen Quant Small Cap Equity Fund Fund S000005386 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	333,680	0.69%	-6,600	Jul 31, 2026	TIAA-CREF Funds, not summed
19.2	College Retirement Equities Fund - Total Global Stock Account Fund S000005080 · Registered fund · Jun 30, 2026 College Retirement Equities Fund, not summed	146,797	0.30%	-298,640	Jun 30, 2026	College Retirement Equities Fund, not summed
19.3	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	62,291	0.13%	+7,317	Jul 31, 2026	TIAA-CREF Funds, not summed
19.4	Nuveen ESG Small-Cap ETF Fund S000055815 · Registered fund · Jul 31, 2026 NuShares ETF Trust, not summed	42,970	0.09%	—	Jul 31, 2026	NuShares ETF Trust, not summed
19.5	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	27,921	0.06%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
20	First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund Fund S000026919 · Registered fund · Jun 30, 2026 First Trust Exchange-Traded Fund II, not summed	609,096	1.26%	+189,721	Jun 30, 2026	First Trust Exchange-Traded Fund II, not summed
21	Telemark Asset Management, LLC 13F CIK 1420816 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	600,000	1.24%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
22	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	555,821	1.15%	+13,043	Jun 30, 2026	carried, not yet filed for the newest quarter
22.1	Royce Small-Cap Opportunity Fund Fund S000009512 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	151,326	0.31%	-7,656	Jun 30, 2026	ROYCE FUND, not summed
22.2	Royce Small-Cap Fund Fund S000009507 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	92,177	0.19%	0	Jun 30, 2026	ROYCE FUND, not summed
22.3	Royce Micro-Cap Fund Fund S000009506 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	41,960	0.09%	0	Jun 30, 2026	ROYCE FUND, not summed
22.4	Royce Capital Fund - Micro-Cap Portfolio Fund S000009496 · Registered fund · Jun 30, 2026 ROYCE CAPITAL FUND, not summed	12,925	0.03%	0	Jun 30, 2026	ROYCE CAPITAL FUND, not summed
23	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	546,978	1.13%	+15,612	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
24	EMERALD MUTUAL FUND ADVISERS TRUST 13F CIK 1352895 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	538,955	1.11%	+100,080	Jun 30, 2026	carried, not yet filed for the newest quarter
24.1	Emerald Growth Fund Fund S000036390 · Registered fund · Apr 30, 2026 FINANCIAL INVESTORS TRUST, not summed	256,897	0.53%	+10,000	Apr 30, 2026	FINANCIAL INVESTORS TRUST, not summed
24.2	Emerald Insights Fund Fund S000046191 · Registered fund · Jul 31, 2025 FINANCIAL INVESTORS TRUST, not summed	9,679	0.02%	-2,300	Jul 31, 2025	FINANCIAL INVESTORS TRUST, not summed
25	American Beacon Small Cap Value Fund Fund S000001818 · Registered fund · Jul 31, 2026 AMERICAN BEACON FUNDS, not summed	495,426	1.02%	-9,527	Jul 31, 2026	AMERICAN BEACON FUNDS, not summed
26	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	433,792	0.90%	+40,568	Jun 30, 2026	carried, not yet filed for the newest quarter
26.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	23,838	0.05%	+2,278	Jun 30, 2026	Northern Funds, not summed
26.2	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	4,489	0.01%	+4,011	Jun 30, 2026	Northern Funds, not summed
26.3	FlexShares Morningstar US Market Factor Tilt Index Fund Fund S000033312 · Registered fund · Jul 31, 2026 FlexShares Trust, not summed	1,134	0.00%	+56	Jul 31, 2026	FlexShares Trust, not summed
27	VANGUARD STRATEGIC EQUITY FUND Fund S000002593 · Registered fund · Jun 30, 2026 VANGUARD HORIZON FUNDS, not summed	417,714	0.86%	-52,570	Jun 30, 2026	VANGUARD HORIZON FUNDS, not summed
28	Ranger Investment Management, L.P. 13F CIK 1319691 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	405,266	0.84%	+405,266	Jun 30, 2026	carried, not yet filed for the newest quarter
28.1	Ranger Micro Cap Fund Fund S000033850 · Registered fund · Jul 31, 2026 SPEND LIFE WISELY FUNDS INVESTMENT TRUST, not summed	4,380	0.01%	0	Jul 31, 2026	SPEND LIFE WISELY FUNDS INVESTMENT TRUST, not summed
28.2	Ranger Small Cap Fund Fund S000033849 · Registered fund · Jul 31, 2026 SPEND LIFE WISELY FUNDS INVESTMENT TRUST, not summed	3,155	0.01%	-2,415	Jul 31, 2026	SPEND LIFE WISELY FUNDS INVESTMENT TRUST, not summed
29	Stephens Investment Management Group LLC 13F CIK 1314440 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	402,762	0.83%	+94,247	Jun 30, 2026	carried, not yet filed for the newest quarter
30	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	399,125	0.82%	+13,711	Jun 30, 2026	carried, not yet filed for the newest quarter
30.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	227,267	0.47%	-1,416	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
30.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	114,460	0.24%	+13,405	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
30.3	Schwab U.S. Broad Market ETF Fund S000026631 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	30,705	0.06%	+443	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
30.4	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	28,658	0.06%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
31	Beau Ventures, LLc 13F CIK 2160035 · Registered investment adviser · Sep 30, 2026	380,893	0.79%	-174	Sep 30, 2026
32	PANAGORA ASSET MANAGEMENT INC 13F CIK 883677 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	375,515	0.78%	+119,123	Jun 30, 2026	carried, not yet filed for the newest quarter
33	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	366,845	0.76%	-200,729	Jun 30, 2026	carried, not yet filed for the newest quarter
34	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	366,437	0.76%	-70,250	Jun 30, 2026	carried, not yet filed for the newest quarter
35	ALGERT GLOBAL LLC 13F CIK 1275218 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	353,832	0.73%	-136,139	Jun 30, 2026	carried, not yet filed for the newest quarter
36	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	343,867	0.71%	+285,255	Jun 30, 2026	carried, not yet filed for the newest quarter
36.1	T. Rowe Price New Horizons Fund, Inc. Fund S000002106 · Registered fund · Jun 30, 2026 T. ROWE PRICE NEW HORIZONS FUND, INC., not summed	181,800	0.38%	—	Jun 30, 2026	T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
36.2	T. Rowe Price Small-Cap Stock Fund, Inc. Fund S000002120 · Registered fund · Jun 30, 2026 T. ROWE PRICE SMALL-CAP STOCK FUND, INC., not summed	138,126	0.29%	—	Jun 30, 2026	T. ROWE PRICE SMALL-CAP STOCK FUND, INC., not summed
36.3	T. Rowe Price Institutional Small-Cap Stock Fund Fund S000002094 · Registered fund · Jun 30, 2026 T. Rowe Price Equity Funds, Inc., not summed	71,212	0.15%	—	Jun 30, 2026	T. Rowe Price Equity Funds, Inc., not summed
36.4	T. Rowe Price Extended Equity Market Index Fund Fund S000002090 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	8,541	0.02%	0	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
36.5	T. Rowe Price Small-Cap Index Fund Fund S000051327 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	7,188	0.01%	+1,720	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
37	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	337,929	0.70%	+11,887	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Kosiba John W JR Insider CIK 1703463 · Jun 11, 2026 SVP, CFO & Treasurer, issuer-wide	334,748	0.69%	-6,769	Jun 11, 2026	SVP, CFO & Treasurer, issuer-wide
39	Emerald Growth Fund Fund S000093696 · Registered fund · Jul 31, 2026 RBB Fund, Inc., not summed	322,394	0.67%	—	Jul 31, 2026	RBB Fund, Inc., not summed
40	VANGUARD EXPLORER FUND Fund S000002578 · Registered fund · Jul 31, 2026 VANGUARD EXPLORER FUND, not summed	312,267	0.64%	-112,220	Jul 31, 2026	VANGUARD EXPLORER FUND, not summed
41	T. Rowe Price Investment Management, Inc. 13F CIK 1897612 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	306,182	0.63%	+306,182	Jun 30, 2026	carried, not yet filed for the newest quarter
42	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	298,420	0.62%	+298,420	Jun 30, 2026	carried, not yet filed for the newest quarter
43	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	250,573	0.52%	-78,840	Jun 30, 2026	carried, not yet filed for the newest quarter
44	BROWN CAPITAL MANAGEMENT LLC 13F CIK 885062 · Registered investment adviser · Sep 30, 2026	239,521	0.49%	+171,365	Sep 30, 2026
44.1	Brown Capital Management Small Company Fund Fund S000010418 · Registered fund · Jun 30, 2026 Brown Capital Management Mutual Funds, not summed	51,400	0.11%	—	Jun 30, 2026	Brown Capital Management Mutual Funds, not summed
45	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	236,706	0.49%	+20,157	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
46	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	235,235	0.49%	+173,421	Jun 30, 2026	carried, not yet filed for the newest quarter
47	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	230,903	0.48%	-215,849	Jun 30, 2026	carried, not yet filed for the newest quarter
48	SmallCap Growth Fund I Fund S000007175 · Registered fund · Jul 31, 2026 Principal Funds, Inc, not summed	209,261	0.43%	+31,502	Jul 31, 2026	Principal Funds, Inc, not summed
49	ESSEX INVESTMENT MANAGEMENT CO LLC 13F CIK 201772 · Registered investment adviser · Sep 30, 2026	205,382	0.42%	-16,551	Sep 30, 2026
50	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	194,477	0.40%	+9,722	Jun 30, 2026	carried, not yet filed for the newest quarter
50.1	AQR Small Cap Momentum Style Fund Fund S000025644 · Registered fund · Mar 31, 2026 AQR Funds, not summed	4,037	0.01%	—	Mar 31, 2026	AQR Funds, not summed
50.2	AQR Small Cap Multi-Style Fund Fund S000040064 · Registered fund · Jun 30, 2026 AQR Funds, not summed	3,771	0.01%	+2,407	Jun 30, 2026	AQR Funds, not summed

25 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.

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Key facts CIK 880807 CUSIP 030111207 13F (30d) 53 filings 50 filers Visit website Investor relations