AMERICAN SUPERCONDUCTOR CORP /DE/
Total Trades
24
Buys
4
Sells
20
Largest Trade
$1M+
Insiders
3
Institutional Funds
197
Inst. Value
$1M+
Activist Filings
21
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| OLIVER DAVID R JR | Director | SELL | $1K–$15K | 200 | $34.10 | Feb 26, 2026 |
| OLIVER DAVID R JR | Director | BUY | $1K–$15K | 200 | $8.33 | Nov 13, 2025 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 13K | $28.58 | Jun 12, 2025 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $100K–$500K | 7K | $28.57 | Jun 12, 2025 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $100K–$500K | 5K | $31.83 | Jun 9, 2025 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 8K | $31.82 | Jun 9, 2025 |
| McGahn Daniel P | Chairman | SELL | $1M+ | 123K | $26.39 | May 29, 2025 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $1M+ | 50K | $26.40 | May 29, 2025 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $100K–$500K | 12K | $24.50 | May 22, 2025 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 13K | $24.49 | May 22, 2025 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $1M+ | 50K | $28.28 | Nov 6, 2024 |
| McGahn Daniel P | Chairman | SELL | $500K+ | 37K | $21.69 | Jun 12, 2024 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $500K+ | 32K | $21.68 | Jun 12, 2024 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $100K–$500K | 29K | $14.82 | May 23, 2024 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 21K | $14.82 | May 23, 2024 |
| McGahn Daniel P | Chairman | SELL | $500K+ | 111K | $6.08 | Jun 23, 2023 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $100K–$500K | 80K | $6.08 | Jun 23, 2023 |
| McGahn Daniel P | Chairman | BUY | $50K–$100K | 25K | $3.49 | Dec 19, 2022 |
| Kosiba John W JR | SVP, CFO & Treasurer | BUY | $50K–$100K | 15K | $3.50 | Dec 19, 2022 |
| Kosiba John W JR | SVP, CFO & Treasurer | BUY | $50K–$100K | 25K | $3.34 | Dec 13, 2022 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 33K | $5.98 | Jun 13, 2022 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $50K–$100K | 8K | $5.97 | Jun 13, 2022 |
| McGahn Daniel P | Chairman | SELL | $100K–$500K | 22K | $5.45 | Jun 2, 2022 |
| Kosiba John W JR | SVP, CFO & Treasurer | SELL | $50K–$100K | 13K | $5.45 | Jun 2, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 197 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 1.2M | $1M+ | SH |
| Atreides Management, LP | 1.0M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 946K | $1M+ | SH |
| EMERALD ADVISERS, LLC | 758K | $1M+ | SH |
| AWM Investment Company, Inc. | 754K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 683K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 683K | $1M+ | SH |
| Telemark Asset Management, LLC | 620K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 494K | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 460K | $1M+ | SH |
| EMERALD MUTUAL FUND ADVISERS TRUST | 435K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 391K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 388K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 387K | $1M+ | SH |
| PANAGORA ASSET MANAGEMENT INC | 255K | $1M+ | SH |
| TUDOR INVESTMENT CORP ET AL | 252K | $1M+ | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 215K | $1M+ | SH |
| Stephens Investment Management Group LLC | 174K | $1M+ | SH |
| JANE STREET GROUP, LLC | 167K | $1M+ | SH |
| BAILLIE GIFFORD & CO | 160K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Jan 30, 2026
7.4%
3.5M shares
SC 13G/A · Apr 17, 2025
7.1%
2.8M shares
SC 13G/A · Feb 12, 2025
4.2%
1.6M shares
SC 13G/A · Feb 5, 2025
8.7%
3.4M shares
SC 13G/A · Nov 12, 2024
6.3%
2.4M shares
SC 13G · Nov 8, 2024
7.1%
2.7M shares
SC 13G · Nov 4, 2024
6.3%
2.4M shares
SC 13G/A · Nov 4, 2024
5.5%
2.1M shares
SC 13G · Oct 22, 2024
7.1%
2.7M shares
SC 13G/A · Aug 9, 2024
4.6%
1.7M shares
SC 13G/A · Feb 14, 2024
7.3%
2.2M shares
Royce & Associates, LP 52-2343049
SC 13G/A · Jan 30, 2024
4.1%
1.2M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Jan 30, 2024
6.9%
2.1M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Jul 5, 2023
4.9%
1.5M shares
SC 13G · Feb 14, 2023
8.7%
2.5M shares
Royce & Associates, LP 52-2343049
SC 13G · Jan 31, 2023
5.7%
1.7M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Jan 19, 2023
5.1%
1.5M shares
SC 13G · Jul 8, 2022
1.8%
523K shares
Footprints Asset Management & Research, Inc. 86-1070985
SC 13G · Feb 14, 2022
1.8%
519K shares
SC 13G/A · Feb 1, 2022
6.7%
1.9M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G · Jan 18, 2022
5.3%
1.5M shares