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Compiled from SEC Form N-PX filings and AMPHASTAR PHARMACEUTICALS INC.’s Form 8-K, filed June 4, 2025 (Item 5.07 on EDGAR). Page generated October 18, 2026.
Meeting of June 2, 2025: 7 items on AMPHASTAR PHARMACEUTICALS INC.’s Form 8-K, filed June 4, 2025: 3 elected · 4 approved.
Material dissent: a director nominee under 80% of the votes cast, say-on-pay under 70%, any other item the board put forward under 80%, or a shareholder proposal with more than 50%, on the company’s own Form 8-K tally. How this is decided
Explore AMPHASTAR PHARMACEUTICALS INC. in the interactive database Compare manager voting policies
These tallies are AMPHASTAR PHARMACEUTICALS INC.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed June 4, 2025 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.
| Ballot item | For | Against | Abstain | Withheld | Broker non-votes | Support (of votes cast) | Reported outcome | Voting standard |
|---|---|---|---|---|---|---|---|---|
| Elect Director: Jack Y. Zhang | 35,324,626 | 2,162,135 | 13,140 | -- | 4,527,192 | 94% | Elected | — |
| Elect Director: Richard Prins | 33,537,101 | 3,949,663 | 13,137 | -- | 4,527,192 | 89% | Elected | — |
| Elect Director: Diane G. Gerst | 26,544,774 | 10,942,687 | 12,440 | -- | 4,527,192 | 71% | Elected | — |
| 2. To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for its fiscal year ending December 31, 2025 | 41,473,456 | 526,237 | 27,400 | -- | -- | 99% | Approved | — |
| 3. To approve, on an advisory basis, the compensation of the Company's named executive officers | 35,585,000 | 1,815,521 | 99,380 | -- | 4,527,192 | 95% | Approved | — |
| 4. To approve the amendment of the Charter to reflect Delaware law provisions regarding officer exculpation; and | 34,496,144 | 2,910,874 | 92,883 | -- | 4,527,192 | 92% | Approved | — |
| 5. To approve the amendment of the Charter to remove forum selection provision | 37,354,374 | 52,330 | 93,197 | -- | 4,527,192 | 99.8% | Approved | — |
Source: AMPHASTAR PHARMACEUTICALS INC., Form 8-K, filed with the SEC on June 4, 2025 — read the filing on EDGAR.
Each item below shows how the 293 asset managers that disclosed a AMPHASTAR PHARMACEUTICALS INC. vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report.
Combines 3 wordings of this item as funds reported it.
71% Majority: yes · of votes cast
Description as filed by funds: To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until each such director's successor is elected and qualified or until such director's earlier death, resignation or removal: Diane G. Gerst
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“Elect Director: Diane G. Gerst”): 26,544,774 for, 10,942,687 against, per its Form 8-K filed June 4, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.
Reported outcome: Elected, in the filing’s own words: “Election of Directors Each director nominee was duly elected to serve until the 2028 annual meeting of stockholders and until his or her successor is duly elected and qualified or until such director's earlier death, resignation or removal.”
Support: 71% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 86 asset managers below reported 9,697,649 for, 5,226,026 against, 3,844 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,365,209 | 2,112 | 0 | 0 | For |
| Capitol Series Trust | 0 | 1,207,454 | 0 | 0 | Against |
| Fidelity | 882,648 | 1,400 | 0 | 0 | For |
| Dimensional | 0 | 735,338 | 0 | 0 | Against |
| State Street | 1,391 | 680,079 | 0 | 0 | Against |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 0 | 507,571 | 0 | 0 | Against |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 0 | 300,676 | 0 | 0 | Against |
| Royce | 0 | 244,045 | 0 | 0 | Against |
| Invesco | 0 | 225,593 | 0 | 0 | Against |
| Goldman Sachs | 0 | 130,576 | 0 | 0 | Against |
| Columbia Threadneedle | 0 | 129,411 | 0 | 0 | Against |
| Equitable | 60,332 | 47,000 | 0 | 0 | Mixed |
| Janus Detroit Street Trust | 0 | 101,278 | 0 | 0 | Against |
| Prudential/PGIM | 34,158 | 65,975 | 0 | 0 | Mixed |
| TIAA | 0 | 94,242 | 0 | 0 | Against |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 70 | 85,626 | 0 | 0 | Against |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 0 | 78,100 | 0 | 0 | Against |
| Brighthouse | 54,346 | 15,100 | 3,844 | 0 | Mixed |
Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.
Combines 3 wordings of this item as funds reported it.
94% Majority: yes · of votes cast
Description as filed by funds: To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until each such director's successor is elected and qualified or until such director's earlier death, resignation or removal: Jack Y. Zhang
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“Elect Director: Jack Y. Zhang”): 35,324,626 for, 2,162,135 against, per its Form 8-K filed June 4, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.
Reported outcome: Elected, in the filing’s own words: “Election of Directors Each director nominee was duly elected to serve until the 2028 annual meeting of stockholders and until his or her successor is duly elected and qualified or until such director's earlier death, resignation or removal.”
Support: 94% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 86 asset managers below reported 14,014,153 for, 909,522 against, 3,844 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,367,318 | 3 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 0 | 735,338 | 0 | 0 | Against |
| State Street | 681,418 | 52 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 507,571 | 0 | 0 | 0 | For |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 114,785 | 15,791 | 0 | 0 | Mixed |
| Columbia Threadneedle | 129,411 | 0 | 0 | 0 | For |
| Equitable | 107,332 | 0 | 0 | 0 | For |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 29,300 | 70,833 | 0 | 0 | Mixed |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 85,696 | 0 | 0 | 0 | For |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.
Combines 3 wordings of this item as funds reported it.
89% Majority: yes · of votes cast
Description as filed by funds: To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until each such director's successor is elected and qualified or until such director's earlier death, resignation or removal: Richard Prins
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“Elect Director: Richard Prins”): 33,537,101 for, 3,949,663 against, per its Form 8-K filed June 4, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.
Reported outcome: Elected, in the filing’s own words: “Election of Directors Each director nominee was duly elected to serve until the 2028 annual meeting of stockholders and until his or her successor is duly elected and qualified or until such director's earlier death, resignation or removal.”
Support: 89% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 86 asset managers below reported 13,158,417 for, 1,765,258 against, 3,844 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,367,315 | 6 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 0 | 735,338 | 0 | 0 | Against |
| State Street | 2,066 | 679,404 | 0 | 0 | Against |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 507,571 | 0 | 0 | 0 | For |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 114,785 | 15,791 | 0 | 0 | Mixed |
| Columbia Threadneedle | 0 | 129,411 | 0 | 0 | Against |
| Equitable | 60,332 | 47,000 | 0 | 0 | Mixed |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 63,458 | 36,675 | 0 | 0 | Mixed |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 85,696 | 0 | 0 | 0 | For |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.
Combines 3 wordings of this item as funds reported it.
92% Approved · of votes cast
Description as filed by funds: To approve the amendment of our Amended and Restated Certificate of Incorporation to reflect Delaware law provisions regarding officer exculpation; and
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“4. To approve the amendment of the Charter to reflect Delaware law provisions regarding officer exculpation; and”): 34,496,144 for, 2,910,874 against — passed, per its Form 8-K filed June 4, 2025 (Item 5.07).
Reported outcome: Approved, in the filing’s own words: “The stockholders approved the amendment to the Charter to reflect Delaware law provisions regarding officer exculpation.”
Support: 92% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 86 asset managers below reported 14,123,921 for, 768,254 against, 35,344 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,365,219 | 2,102 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 735,338 | 0 | 0 | 0 | For |
| State Street | 681,189 | 281 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 507,571 | 0 | 0 | 0 | For |
| Pacer Funds Trust | 0 | 459,217 | 0 | 0 | Against |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 130,576 | 0 | 0 | 0 | For |
| Columbia Threadneedle | 129,411 | 0 | 0 | 0 | For |
| Equitable | 107,332 | 0 | 0 | 0 | For |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 100,133 | 0 | 0 | 0 | For |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 0 | 90,068 | 0 | 0 | Against |
| Principal | 85,626 | 70 | 0 | 0 | For |
| Transamerica | 32,219 | 52,800 | 0 | 0 | Mixed |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.
Combines 2 wordings of this item as funds reported it.
99.8% Approved · of votes cast
Description as filed by funds: To approve the amendment of our Amended and Restated Certificate of Incorporation to remove forum selection provision.
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“5. To approve the amendment of the Charter to remove forum selection provision”): 37,354,374 for, 52,330 against — passed, per its Form 8-K filed June 4, 2025 (Item 5.07).
Reported outcome: Approved, in the filing’s own words: “Proposal 5: To approve the amendment of the Charter to remove forum selection provision;”
Support: 99.8% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 86 asset managers below reported 14,892,175 for, 0 against, 35,344 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,367,321 | 0 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 735,338 | 0 | 0 | 0 | For |
| State Street | 681,470 | 0 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 507,571 | 0 | 0 | 0 | For |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 130,576 | 0 | 0 | 0 | For |
| Columbia Threadneedle | 129,411 | 0 | 0 | 0 | For |
| Equitable | 107,332 | 0 | 0 | 0 | For |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 100,133 | 0 | 0 | 0 | For |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 85,696 | 0 | 0 | 0 | For |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.
Combines 11 wordings of this item as funds reported it.
95% Approved · of votes cast
Description as filed by funds: To approve, on an advisory basis, the compensation of the Company's named executive officers;
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“3. To approve, on an advisory basis, the compensation of the Company's named executive officers”): 35,585,000 for, 1,815,521 against — passed, per its Form 8-K filed June 4, 2025 (Item 5.07).
Reported outcome: Approved, in the filing’s own words: “The stockholders approved, on a non-binding basis, the compensation of the Company's named executive officers.”
Support: 95% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,365,221 | 2,100 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 735,338 | 0 | 0 | 0 | For |
| State Street | 681,231 | 239 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 0 | 507,571 | 0 | 0 | Against |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 130,576 | 0 | 0 | 0 | For |
| Columbia Threadneedle | 129,411 | 0 | 0 | 0 | For |
| Equitable | 107,332 | 0 | 0 | 0 | For |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 100,133 | 0 | 0 | 0 | For |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 85,696 | 0 | 0 | 0 | For |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Fund voting reports, all 86 managers: 14,340,340 for, 551,835 against, 35,344 abstained. Showing the 25 largest; see all in the interactive database.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| State Street | 1,419,109 | 12,857 | 0 | 0 | For |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1,253,491 | 0 | 0 | 0 | For |
| Epoch Investment Partners, Inc. | 1,221,045 | 0 | 0 | 0 | For |
| BlackRock | 1,136,276 | 19,390 | 0 | 0 | For |
| GEODE CAPITAL MANAGEMENT, LLC | 963,241 | 0 | 0 | 0 | For |
| MARSHALL WACE, LLP | 809,903 | 0 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| T. Rowe Price | 550,675 | 0 | 0 | 0 | For |
| Boston Trust Walden Co | 0 | 495,076 | 0 | 0 | Against |
| Charles Schwab | 329,326 | 0 | 0 | 0 | For |
| American Century | 302,562 | 0 | 0 | 0 | For |
| Boston Partners | 286,027 | 0 | 0 | 0 | For |
| Invesco | 280,970 | 0 | 0 | 0 | For |
| Northern Trust | 261,970 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 245,250 | 0 | 0 | 0 | For |
| PARAMETRIC PORTFOLIO ASSOCIATES LLC | 0 | 214,470 | 0 | 0 | Against |
| PRINCIPAL GLOBAL INVESTORS | 213,950 | 0 | 0 | 0 | For |
| Goldman Sachs | 211,956 | 0 | 0 | 0 | For |
| Renaissance | 169,445 | 0 | 0 | 0 | For |
| MELLON INVESTMENTS Corp | 157,825 | 0 | 0 | 0 | For |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | 144,868 | 12,945 | 0 | 0 | Mixed |
| NORDEA INVESTMENT MANAGEMENT AB | 0 | 150,932 | 0 | 0 | Against |
| Granite Investment Partners, LLC | 142,402 | 0 | 0 | 0 | For |
| Two Sigma | 138,851 | 0 | 0 | 0 | For |
| Dimensional | 130,748 | 0 | 0 | 0 | For |
Institutional-manager reports, all 231 managers: 12,717,300 for, 1,103,874 against, 44,341 abstained, 375 not voted. Showing the 25 largest; see all in the interactive database.
Combines 4 wordings of this item as funds reported it.
99% Approved · of votes cast
Description as filed by funds: To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for its fiscal year ending December 31, 2025;
AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“2. To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for its fiscal year ending December 31, 2025”): 41,473,456 for, 526,237 against — passed, per its Form 8-K filed June 4, 2025 (Item 5.07).
Reported outcome: Approved, in the filing’s own words: “The stockholders ratified the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025.”
Support: 99% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.
The 87 asset managers below reported 14,921,287 for, 2,402 against, 3,844 abstained.
| Asset manager | For | Against | Abstain | Withheld | Vote |
|---|---|---|---|---|---|
| BlackRock | 4,056,719 | 0 | 0 | 0 | For |
| Vanguard | 2,365,223 | 2,098 | 0 | 0 | For |
| Capitol Series Trust | 1,207,454 | 0 | 0 | 0 | For |
| Fidelity | 884,048 | 0 | 0 | 0 | For |
| Dimensional | 735,338 | 0 | 0 | 0 | For |
| State Street | 681,418 | 52 | 0 | 0 | For |
| Federated Hermes | 585,115 | 0 | 0 | 0 | For |
| BOSTON TRUST WALDEN FUNDS | 507,571 | 0 | 0 | 0 | For |
| Pacer Funds Trust | 459,217 | 0 | 0 | 0 | For |
| T. Rowe Price | 408,509 | 0 | 0 | 0 | For |
| Charles Schwab | 307,098 | 0 | 0 | 0 | For |
| American Century | 300,676 | 0 | 0 | 0 | For |
| Royce | 244,045 | 0 | 0 | 0 | For |
| Invesco | 225,593 | 0 | 0 | 0 | For |
| Goldman Sachs | 130,576 | 0 | 0 | 0 | For |
| Columbia Threadneedle | 129,411 | 0 | 0 | 0 | For |
| Equitable | 107,332 | 0 | 0 | 0 | For |
| Janus Detroit Street Trust | 101,278 | 0 | 0 | 0 | For |
| Prudential/PGIM | 100,133 | 0 | 0 | 0 | For |
| TIAA | 94,242 | 0 | 0 | 0 | For |
| World Funds Trust | 90,068 | 0 | 0 | 0 | For |
| Principal | 85,696 | 0 | 0 | 0 | For |
| Transamerica | 85,019 | 0 | 0 | 0 | For |
| HOTCHKIS & WILEY FUNDS /DE/ | 78,100 | 0 | 0 | 0 | For |
| Brighthouse | 69,446 | 0 | 3,844 | 0 | Mixed |
Showing the 25 largest of 87 asset managers. See all 87 in the interactive database.
Ranked separately for each type of Form N-PX report. An institutional manager can report shares that a fund it advises also reports, so the two tables can list the same shares and are never added together. Each is ranked by the shares voted on the item that the most managers of that type reported, shown as a share of the 47,670,177 shares outstanding at the time of that meeting.
| # | Asset manager | % of shares outstanding |
|---|---|---|
| 1 | BlackRock | 8.51% |
| 2 | Vanguard | 4.97% |
| 3 | Capitol Series Trust | 2.53% |
| 4 | Fidelity | 1.85% |
| 5 | Dimensional | 1.54% |
| 6 | State Street | 1.43% |
| 7 | Federated Hermes | 1.23% |
| 8 | BOSTON TRUST WALDEN FUNDS | 1.06% |
| 9 | Pacer Funds Trust | 0.96% |
| 10 | T. Rowe Price | 0.86% |
| # | Asset manager | % of shares outstanding |
|---|---|---|
| 1 | State Street | 3.00% |
| 2 | FULLER & THALER ASSET MANAGEMENT, INC. | 2.63% |
| 3 | Epoch Investment Partners, Inc. | 2.56% |
| 4 | BlackRock | 2.42% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 2.02% |
| 6 | MARSHALL WACE, LLP | 1.70% |
| 7 | Federated Hermes | 1.23% |
| 8 | T. Rowe Price | 1.16% |
| 9 | Boston Trust Walden Co | 1.04% |
| 10 | Charles Schwab | 0.69% |
As disclosed to the SEC in Form 13F (quarter-end holdings of 30 large managers), Schedules 13D and 13G (beneficial ownership above 5%) and the company’s own proxy statement (DEF 14A). Each row names its form.
| Holder | % outstanding | Disclosure |
|---|---|---|
| Jack Y. Zhang | 26.27% | 13G |
| Mary Z. Luo | 26.18% | DEF14A |
| Applied Physics & Chemistry Laboratories, Inc. | 14.32% | DEF14A |
| BlackRock | 12.90% | 13F |
| Vanguard Group | 5.08% | 13F |
| State Street | 3.37% | 13F |
| Dimensional Fund Advisors | 2.85% | 13F |
| Geode Capital | 2.00% | 13F |
| Millennium Management | 1.82% | 13F |
| Northern Trust | 1.25% | 13F |
Percentages above are of 47,670,177 shares outstanding, as reported by AMPHASTAR PHARMACEUTICALS INC. on its Form 10-Q dated March 31, 2025 (see the filing on EDGAR). This is the count contemporaneous with the 2024-2025 meeting, not today’s. Each holding is as of its own filing, which may be dated before or after the meeting.
Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered funds disclose how they voted every proxy and institutional managers disclose their votes on executive pay (say-on-pay, say-on-frequency and golden parachutes), and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from AMPHASTAR PHARMACEUTICALS INC.’s 10-Q dated March 31, 2025. This page is a static snapshot rebuilt weekly on October 18, 2026; a live search always shows the current data.
At AMPHASTAR PHARMACEUTICALS INC.'s shareholder meeting held June 2, 2025, in the 2024-2025 proxy season, 293 asset managers reported how they voted on 7 ballot items in their SEC Form N-PX filings, covering 2,213 separate fund positions. On the most widely held item on that ballot — To approve, on an advisory basis, the compensation of the Company's named executive officers; — AMPHASTAR PHARMACEUTICALS INC.'s filing reports the proposal as approved, with 95% support of the votes cast (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side). Source: AMPHASTAR PHARMACEUTICALS INC.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on June 4, 2025.
AMPHASTAR PHARMACEUTICALS INC. proxy season coverage: 2023-2024 · 2024-2025 (this page) · 2025-2026.
Download data (CSV): ballot items · votes by manager · column guide.