AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) — Institutional Holders, Q2 2026 (page 3)

280 institutional investment managers reported a AMSC position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.5B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 201 to 280. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

AMSC 13F holders ranked 201–280 of 280

Institutional investors reporting a position in AMERICAN SUPERCONDUCTOR CORP /DE/ on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
STRS OHIO#201 · 3,700 sh$153.6K-79.1%
State of Wyoming#202 · 3,675 sh$152.5K-20.5%
Ensign Peak Advisors#203 · 3,050 sh$126.6K-33.0%
SBI Securities , Ltd.#204 · 3,024 sh$125.5K+10.7%
Optiver Holding B.V.#205 · 2,753 sh$114.3K+46.3%
Federation des caisses Desjardins du Quebec#206 · 2,495 sh$103.6K-5.0%
Tower Research Capital (TRC)#207 · 2,338 sh$97.0K-50.0%
Lodestone Wealth Management#208 · 2,297 sh$95.3K+117.9%
Freestone Grove Partners#209 · 2,228 sh$92.5KNew
Global Retirement Partners#210 · 1,919 sh$79.7K—
Rockefeller Capital Management L.P.#211 · 1,556 sh$64.6K-1.1%
GAMMA Investing#212 · 1,177 sh$48.9K+4.3%
Nykredit A/S#213 · 1,111 sh$46.1K—
Allworth Financial#214 · 1,025 sh$42.5K-1.8%
Dakota Community Bank & NA#215 · 994 sh$41.3KNew
Hughes Financial Services#216 · 900 sh$37.4KNew
Steward Partners Investment Advisory#217 · 810 sh$33.6KNew
SUMMIT SECURITIES GROUP#218 · 794 sh$33.0KNew
BNP Paribas Asset Management Holding S.A.#219 · 753 sh$31.3K-15.1%
Versant Capital Management#220 · 665 sh$27.6K0.0%
BLUE BELL PRIVATE WEALTH MANAGEMENT#221 · 613 sh$25.4KNew
NewEdge Advisors#222 · 612 sh$25.4KNew
NISA INVESTMENT ADVISORS#223 · 553 sh$23.0K+1.5%
SWAN Capital#224 · 550 sh$22.8K+10.0%
SIGNATUREFD#225 · 488 sh$20.3K+199.4%
Wealth Enhancement Services#226 · 406 sh$16.9K+1.8%
Clearstead#227 · 393 sh$16.3K0.0%
Essential Partners#228 · 387 sh$16.1K-66.8%
PNC FINANCIAL SERVICES GROUP#229 · 386 sh$16.0K+13.2%
Caitong International Asset Management , Ltd#230 · 332 sh$13.8KNew
Kemnay Advisory Services#231 · 329 sh$13.7K-82.4%
HARBOUR INVESTMENTS#232 · 301 sh$12.5K+49.8%
Lavaca Capital#233 · 280 sh$11.6KNew
SHP Wealth Management#234 · 271 sh$11.2K0.0%
CoreCap Advisors#235 · 220 sh$9.1K0.0%
STANCE CAPITAL#236 · 220 sh$9.1K0.0%
EverSource Wealth Advisors#237 · 192 sh$8.0K-96.1%
Bullock Wealth Management Group#238 · 190 sh$7.6K0.0%
LOS ANGELES CAPITAL MANAGEMENT#239 · 181 sh$7.5K-99.6%
Owl Creek Wealth Partners#240 · 175 sh$7.3K0.0%
Sterling Capital Management#241 · 165 sh$6.8K-44.8%
NATIONAL BANK OF CANADA#242 · 163 sh$6.8K-44.6%
Spire Wealth Management#243 · 157 sh$6.5K-39.6%
BARRETT & COMPANY#244 · 150 sh$6.2KNew
Quantbot Technologies#245 · 139 sh$5.8KNew
Fortitude Family Office#246 · 136 sh$5.6K+655.6%
Parallel Advisors#247 · 135 sh$5.6K0.0%
HANTZ FINANCIAL SERVICES#248 · 130 sh$5.0KNew
NORTHWESTERN MUTUAL WEALTH MANAGEMENT#249 · 119 sh$4.9K+8.2%
Smartleaf Asset Management#250 · 122 sh$4.9K0.0%
IFP Advisors#251 · 108 sh$4.5K+200.0%
TD Waterhouse Canada#252 · 110 sh$4.4K+10.0%
ROTHSCHILD INVESTMENT#253 · 104 sh$4.3K+15.6%
OF VERMONT#254 · 100 sh$4.2K—
PRIVATE NA#255 · 100 sh$4.2K0.0%
TrueNorth#256 · 100 sh$4.2KNew
Archer Investment#257 · 100 sh$4.2K0.0%
Oakworth Capital#258 · 100 sh$4.0KNew
Quarry#259 · 95 sh$3.9KNew
Farther Finance Advisors#260 · 88 sh$3.6K+158.8%
Wellington Shields#261 · 67 sh$2.8K0.0%
JNBA Financial Advisors#262 · 66 sh$2.7KNew
Kilter Group#263 · 63 sh$2.6K0.0%
US BANCORP \DE\#264 · 61 sh$2.5K-99.3%
HAGER INVESTMENT MANAGEMENT SERVICES#265 · 50 sh$2.1K0.0%
Aventura Private Wealth#266 · 50 sh$2.1KNew
WHITTIER OF NEVADA#267 · 40 sh$1.4K0.0%
Basecamp Wealth Advisors#268 · 27 sh$1.1K+107.7%
True Wealth Design#269 · 25 sh$1.0K-10.7%
Larson Financial Group#270 · 22 sh$913.00+144.4%
MassMutual Private Wealth & , FSB#271 · 21 sh$872.00+320.0%
Keating Financial Advisory Services#272 · 19 sh$789.00+5.6%
Stone House Investment Management#273 · 14 sh$581.00New
Rialto Wealth Management#274 · 13 sh$540.00New
JFS WEALTH ADVISORS#275 · 10 sh$416.000.0%
SJS Investment Consulting#276 · 3 sh$125.00+50.0%
JPL Wealth Management#277 · 2 sh$84.00New
RHL GROUP#278 · 1 sh$42.00New
WPG Advisers#279 · 1 sh$42.00-98.9%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM#280 · 50,888 sh—-10.7%

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.