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AMPHASTAR PHARMACEUTICALS INC. 2024-2025 Proxy Voting Records

Compiled from SEC Form N-PX filings and AMPHASTAR PHARMACEUTICALS INC.’s Form 8-K, filed 2025-06-04 (Item 5.07 on EDGAR). Page generated 04 October 2026.

11Reported items
296Asset managers
2,219Fund votes
2025-06-02Meeting date

Proxy season: 2023-2024 2024-2025 2025-2026

Explore AMPHASTAR PHARMACEUTICALS INC. in the interactive database Compare manager voting policies

Official 2024-2025 meeting results reported by AMPHASTAR PHARMACEUTICALS INC.

These tallies are AMPHASTAR PHARMACEUTICALS INC.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed 2025-06-04 (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.

AMPHASTAR PHARMACEUTICALS INC. — official shareholder meeting results, meeting held 2025-06-02
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Outcome
Elect Director: Jack Y. Zhang	35,324,626	2,162,135	13,140	--	4,527,192	Majority: yes
Elect Director: Richard Prins	33,537,101	3,949,663	13,137	--	4,527,192	Majority: yes
Elect Director: Diane G. Gerst	26,544,774	10,942,687	12,440	--	4,527,192	Majority: yes
Proposal 5: To approve the amendment of the Charter to remove forum selection provision;	37,354,374	52,330	93,197	--	4,527,192	Passed

Source: AMPHASTAR PHARMACEUTICALS INC., Form 8-K, filed with the SEC on 2025-06-04 — read the filing on EDGAR.

How asset managers voted at the AMPHASTAR PHARMACEUTICALS INC. 2024-2025 meeting

Each item below shows how the 296 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. These are reported items, not a count of the ballot: fund filings describe one ballot item in different words. Two descriptions are shown as one item only on evidence — the same text (or one cut short of the other), the same director nominee, or a match to the same row of AMPHASTAR PHARMACEUTICALS INC.’s own Form 8-K tally — never because they merely read alike. A description that could not be joined that way is listed on its own, so one ballot item can appear more than once.

1. To approve, on an advisory basis, the compensation of the Company's named executive officers;

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2025-06-02.

Combines 6 wordings of this item as funds reported it.

95% fund support · no official result

FOR 94%

The 281 asset managers below cast 95% of the shares they voted on this item FOR (25,724,638 for, 1,496,622 against).

FOR: 25,724,638 (94.2%)AGAINST: 1,496,622 (5.5%)ABSTAIN: 79,685 (0.3%)NOT VOTED: 375 (0.0%)

Largest asset managers voting on “To approve, on an advisory basis, the compensation of the Company's named executive officers;” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Vote
BlackRock	5,192,995	19,390	For
Vanguard	2,494,364	2,100	For
State Street	2,100,340	13,096	For
FULLER & THALER ASSET MANAGEMENT, INC.	1,253,491	0	For
Epoch Investment Partners, Inc.	1,221,045	0	For
Federated Hermes	1,170,230	0	For
GEODE CAPITAL MANAGEMENT, LLC	963,241	0	For
T. Rowe Price	959,184	0	For
Fidelity	887,978	0	For
Dimensional	866,086	0	For
MARSHALL WACE, LLP	809,903	0	For
Charles Schwab	636,424	0	For
American Century	603,238	0	For
BOSTON TRUST WALDEN FUNDS	0	507,571	Against
Invesco	506,563	0	For
Boston Trust Walden Co	0	495,076	Against
Pacer Funds Trust	459,217	0	For
Goldman Sachs	342,532	0	For
Northern Trust	293,036	0	For
Boston Partners	286,027	0	For
Royce	246,317	0	For
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	245,250	0	For
PARAMETRIC PORTFOLIO ASSOCIATES LLC	0	214,470	Against
PRINCIPAL GLOBAL INVESTORS	213,950	0	For
Renaissance	169,445	0	For

Showing the 25 largest of 281 asset managers. See all 281 in the interactive database.

2. To approve the amendment of our Amended and Restated Certificate of Incorporation to remove forum selection provision.

CORPORATE GOVERNANCECompany result: Passed

Meeting held 2025-06-02.

Combines 2 wordings of this item as funds reported it.

99.8% Passed · of votes cast

FOR 99.8%

FOR: 37,354,374AGAINST: 52,330

AMPHASTAR PHARMACEUTICALS INC.’s own tally for this item (“Proposal 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 2025-06-04 (Item 5.07). Of all 47,670,177 outstanding shares: 78% for, 0.2% against (78% of the company cast a for/against vote).

The 86 asset managers below cast 99.9% of the shares they voted on this item FOR (14,886,860 for, 0 against).

FOR 99.7%

FOR: 14,886,860 (99.8%)AGAINST: 0 (0.0%)ABSTAIN: 35,344 (0.2%)

Largest asset managers voting on “To approve the amendment of our Amended and Restated Certificate of Incorporation to remove forum selection pr” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Abstain	Vote
BlackRock	4,056,719	0	For
Vanguard	2,367,321	0	For
Capitol Series Trust	1,207,454	0	For
Fidelity	884,048	0	For
Dimensional	735,338	0	For
State Street	681,470	0	For
Federated Hermes	585,115	0	For
BOSTON TRUST WALDEN FUNDS	507,571	0	For
Pacer Funds Trust	459,217	0	For
T. Rowe Price	408,509	0	For
Charles Schwab	307,098	0	For
American Century	300,676	0	For
Royce	244,045	0	For
Invesco	225,593	0	For
Goldman Sachs	130,576	0	For
Columbia Threadneedle	129,411	0	For
Equitable	107,332	0	For
Janus Detroit Street Trust	101,278	0	For
Prudential/PGIM	100,133	0	For
TIAA	94,242	0	For
World Funds Trust	90,068	0	For
Principal	85,696	0	For
Transamerica	85,019	0	For
HOTCHKIS & WILEY FUNDS /DE/	78,100	0	For
Brighthouse	69,446	3,844	For

Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.

3. 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

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-02.

Combines 3 wordings of this item as funds reported it.

71% Majority: yes · of votes cast

FOR 71%AGAINST 29%

FOR: 26,544,774AGAINST: 10,942,687

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 2025-06-04 (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. Of all 47,670,177 outstanding shares: 56% for, 23% against (79% of the company cast a for/against vote).

The 86 asset managers below cast 65% of the shares they voted on this item FOR (9,697,649 for, 5,220,711 against).

FOR 65%AGAINST 35%

FOR: 9,697,649 (65.0%)AGAINST: 5,220,711 (35.0%)ABSTAIN: 3,844 (0.0%)

Largest asset managers voting on “To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until ” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
BlackRock	4,056,719	0	0	For
Vanguard	2,365,209	2,112	0	For
Capitol Series Trust	0	1,207,454	0	Against
Fidelity	882,648	1,400	0	For
Dimensional	0	735,338	0	Against
State Street	1,391	680,079	0	Against
Federated Hermes	585,115	0	0	For
BOSTON TRUST WALDEN FUNDS	0	507,571	0	Against
Pacer Funds Trust	459,217	0	0	For
T. Rowe Price	408,509	0	0	For
Charles Schwab	307,098	0	0	For
American Century	0	300,676	0	Against
Royce	0	244,045	0	Against
Invesco	0	225,593	0	Against
Goldman Sachs	0	130,576	0	Against
Columbia Threadneedle	0	129,411	0	Against
Equitable	60,332	47,000	0	For
Janus Detroit Street Trust	0	101,278	0	Against
Prudential/PGIM	34,158	65,975	0	Against
TIAA	0	94,242	0	Against
World Funds Trust	90,068	0	0	For
Principal	70	85,626	0	Against
Transamerica	85,019	0	0	For
HOTCHKIS & WILEY FUNDS /DE/	0	78,100	0	Against
Brighthouse	54,346	15,100	3,844	For

Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.

4. 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

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-02.

Combines 3 wordings of this item as funds reported it.

94% Majority: yes · of votes cast

FOR 94%

FOR: 35,324,626AGAINST: 2,162,135

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 2025-06-04 (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. Of all 47,670,177 outstanding shares: 74% for, 5% against (79% of the company cast a for/against vote).

The 86 asset managers below cast 94% of the shares they voted on this item FOR (14,014,153 for, 904,207 against).

FOR 94%

FOR: 14,014,153 (93.9%)AGAINST: 904,207 (6.1%)ABSTAIN: 3,844 (0.0%)

Largest asset managers voting on “To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until ” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
BlackRock	4,056,719	0	0	For
Vanguard	2,367,318	3	0	For
Capitol Series Trust	1,207,454	0	0	For
Fidelity	884,048	0	0	For
Dimensional	0	735,338	0	Against
State Street	681,418	52	0	For
Federated Hermes	585,115	0	0	For
BOSTON TRUST WALDEN FUNDS	507,571	0	0	For
Pacer Funds Trust	459,217	0	0	For
T. Rowe Price	408,509	0	0	For
Charles Schwab	307,098	0	0	For
American Century	300,676	0	0	For
Royce	244,045	0	0	For
Invesco	225,593	0	0	For
Goldman Sachs	114,785	15,791	0	For
Columbia Threadneedle	129,411	0	0	For
Equitable	107,332	0	0	For
Janus Detroit Street Trust	101,278	0	0	For
Prudential/PGIM	29,300	70,833	0	Against
TIAA	94,242	0	0	For
World Funds Trust	90,068	0	0	For
Principal	85,696	0	0	For
Transamerica	85,019	0	0	For
HOTCHKIS & WILEY FUNDS /DE/	78,100	0	0	For
Brighthouse	69,446	0	3,844	For

Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.

5. 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

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-02.

Combines 3 wordings of this item as funds reported it.

89% Majority: yes · of votes cast

FOR 89%11%

FOR: 33,537,101AGAINST: 3,949,663

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 2025-06-04 (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. Of all 47,670,177 outstanding shares: 70% for, 8% against (79% of the company cast a for/against vote).

The 86 asset managers below cast 88% of the shares they voted on this item FOR (13,158,417 for, 1,759,943 against).

FOR 88%12%

FOR: 13,158,417 (88.2%)AGAINST: 1,759,943 (11.8%)ABSTAIN: 3,844 (0.0%)

Largest asset managers voting on “To elect three Class III directors to serve until the Company's 2028 annual meeting of stockholders and until ” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
BlackRock	4,056,719	0	0	For
Vanguard	2,367,315	6	0	For
Capitol Series Trust	1,207,454	0	0	For
Fidelity	884,048	0	0	For
Dimensional	0	735,338	0	Against
State Street	2,066	679,404	0	Against
Federated Hermes	585,115	0	0	For
BOSTON TRUST WALDEN FUNDS	507,571	0	0	For
Pacer Funds Trust	459,217	0	0	For
T. Rowe Price	408,509	0	0	For
Charles Schwab	307,098	0	0	For
American Century	300,676	0	0	For
Royce	244,045	0	0	For
Invesco	225,593	0	0	For
Goldman Sachs	114,785	15,791	0	For
Columbia Threadneedle	0	129,411	0	Against
Equitable	60,332	47,000	0	For
Janus Detroit Street Trust	101,278	0	0	For
Prudential/PGIM	63,458	36,675	0	For
TIAA	94,242	0	0	For
World Funds Trust	90,068	0	0	For
Principal	85,696	0	0	For
Transamerica	85,019	0	0	For
HOTCHKIS & WILEY FUNDS /DE/	78,100	0	0	For
Brighthouse	69,446	0	3,844	For

Showing the 25 largest of 86 asset managers. See all 86 in the interactive database.

6. To approve the amendment of our Amended and Restated Certificate of Incorporation to reflect Delaware law provisions regarding officer exculpation; and

CORPORATE GOVERNANCE

Meeting held 2025-06-02.

Combines 2 wordings of this item as funds reported it.

95% fund support · no official result

FOR 95%

The 83 asset managers below cast 95% of the shares they voted on this item FOR (14,075,248 for, 760,971 against).

FOR: 14,075,248 (94.6%)AGAINST: 760,971 (5.1%)ABSTAIN: 35,344 (0.2%)

Largest asset managers voting on “To approve the amendment of our Amended and Restated Certificate of Incorporation to reflect Delaware law prov” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
BlackRock	4,056,719	0	0	For
Vanguard	2,365,219	2,102	0	For
Capitol Series Trust	1,207,454	0	0	For
Fidelity	884,048	0	0	For
Dimensional	735,338	0	0	For
State Street	681,189	281	0	For
Federated Hermes	585,115	0	0	For
BOSTON TRUST WALDEN FUNDS	507,571	0	0	For
Pacer Funds Trust	0	459,217	0	Against
T. Rowe Price	408,509	0	0	For
Charles Schwab	307,098	0	0	For
American Century	300,676	0	0	For
Royce	244,045	0	0	For
Invesco	225,593	0	0	For
Goldman Sachs	130,576	0	0	For
Columbia Threadneedle	129,411	0	0	For
Equitable	107,332	0	0	For
Janus Detroit Street Trust	101,278	0	0	For
Prudential/PGIM	100,133	0	0	For
TIAA	94,242	0	0	For
World Funds Trust	0	90,068	0	Against
Principal	85,626	70	0	For
Transamerica	32,219	52,800	0	Against
HOTCHKIS & WILEY FUNDS /DE/	78,100	0	0	For
Brighthouse	69,446	0	3,844	For

Showing the 25 largest of 83 asset managers. See all 83 in the interactive database.

7. 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;

AUDIT-RELATED

Meeting held 2025-06-02.

Combines 2 wordings of this item as funds reported it.

99.9% fund support · no official result

FOR 99.9%

The 83 asset managers below cast 99.9% of the shares they voted on this item FOR (14,865,317 for, 2,402 against).

FOR: 14,865,317 (100.0%)AGAINST: 2,402 (0.0%)ABSTAIN: 3,844 (0.0%)

Largest asset managers voting on “To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm ” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
BlackRock	4,056,719	0	0	For
Vanguard	2,365,223	2,098	0	For
Capitol Series Trust	1,207,454	0	0	For
Fidelity	884,048	0	0	For
Dimensional	735,338	0	0	For
State Street	681,418	52	0	For
Federated Hermes	585,115	0	0	For
BOSTON TRUST WALDEN FUNDS	507,571	0	0	For
Pacer Funds Trust	459,217	0	0	For
T. Rowe Price	408,509	0	0	For
Charles Schwab	307,098	0	0	For
American Century	300,676	0	0	For
Royce	244,045	0	0	For
Invesco	225,593	0	0	For
Goldman Sachs	130,576	0	0	For
Columbia Threadneedle	129,411	0	0	For
Equitable	107,332	0	0	For
Janus Detroit Street Trust	101,278	0	0	For
Prudential/PGIM	100,133	0	0	For
TIAA	94,242	0	0	For
World Funds Trust	90,068	0	0	For
Principal	85,696	0	0	For
Transamerica	85,019	0	0	For
HOTCHKIS & WILEY FUNDS /DE/	78,100	0	0	For
Brighthouse	69,446	0	3,844	For

Showing the 25 largest of 83 asset managers. See all 83 in the interactive database.

8. Advisory Vote to Ratify Named Executive Officers' Compensation

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2025-06-02.

39% fund support · no official result

FOR 39%AGAINST 61%

The 6 asset managers below cast 39% of the shares they voted on this item FOR (100,987 for, 158,494 against).

FOR: 100,987 (38.9%)AGAINST: 158,494 (61.1%)

Largest asset managers voting on “Advisory Vote to Ratify Named Executive Officers' Compensation” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Vote
NORDEA INVESTMENT MANAGEMENT AB	0	150,932	Against
JPMorgan	57,629	0	For
Empower	43,358	0	For
HC CAPITAL TRUST	0	5,164	Against
CLEARWATER INVESTMENT TRUST	0	2,119	Against
Cornerstone Investment Partners, LLC	0	279	Against

9. Amend Certificate of Incorporation to Reflect New Delaware Law Provisions Regarding Officer Exculpation

DIRECTOR ELECTIONS

Meeting held 2025-06-02.

86% fund support · no official result

FOR 86%AGAINST 14%

The 3 asset managers below cast 86% of the shares they voted on this item FOR (43,358 for, 7,283 against).

FOR: 43,358 (85.6%)AGAINST: 7,283 (14.4%)

Largest asset managers voting on “Amend Certificate of Incorporation to Reflect New Delaware Law Provisions Regarding Officer Exculpation” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Vote
Empower	43,358	0	For
HC CAPITAL TRUST	0	5,164	Against
CLEARWATER INVESTMENT TRUST	0	2,119	Against

10. Ratify Ernst & Young LLP as Auditors

AUDIT-RELATED

Meeting held 2025-06-02.

100% fund support · no official result

FOR 100%

The 3 asset managers below cast 100% of the shares they voted on this item FOR (50,641 for, 0 against).

FOR: 50,641 (100.0%)

Largest asset managers voting on “Ratify Ernst & Young LLP as Auditors” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Vote
Empower	43,358	For
HC CAPITAL TRUST	5,164	For
CLEARWATER INVESTMENT TRUST	2,119	For

11. To approve on an advisory basis, the compensation of the Company's named executive officers.

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2024-06-03 (outside the 2024-2025 season's 1 July to 30 June window; reported in this season's filings).

Combines 2 wordings of this item as funds reported it.

0% fund support · no official result

AGAINST 100%

The 2 asset managers below cast 0% of the shares they voted on this item FOR (0 for, 150 against).

AGAINST: 150 (100.0%)

Largest asset managers voting on “To approve on an advisory basis, the compensation of the Company's named executive officers.” at AMPHASTAR PHARMACEUTICALS INC., 2024-2025
Asset manager	For	Against	Abstain	Withheld	Vote
COLDSTREAM CAPITAL MANAGEMENT INC	0	150	0	0	Against
Echo45 Advisors LLC	0	0	0	0	--

Largest AMPHASTAR PHARMACEUTICALS INC. shareholders voting in 2024-2025

Ranked by the number of AMPHASTAR PHARMACEUTICALS INC. shares each manager voted on the most widely held ballot item of the 2024-2025 meeting, shown as a share of the 47,670,177 shares outstanding at the time of that meeting.

Top AMPHASTAR PHARMACEUTICALS INC. shareholders by shares voted, 2024-2025
#	Asset manager	% of shares outstanding
1	BlackRock	10.93%
2	Vanguard	5.24%
3	State Street	4.43%
4	FULLER & THALER ASSET MANAGEMENT, INC.	2.63%
5	Epoch Investment Partners, Inc.	2.56%
6	Federated Hermes	2.45%
7	GEODE CAPITAL MANAGEMENT, LLC	2.02%
8	T. Rowe Price	2.01%
9	Fidelity	1.86%
10	Dimensional	1.82%

Reported AMPHASTAR PHARMACEUTICALS INC. ownership

Positions disclosed to the SEC on Schedules 13D and 13G, Form 13F and the company’s own proxy statement (DEF 14A).

AMPHASTAR PHARMACEUTICALS INC. beneficial owners on record for the 2024-2025 proxy season
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 2025-03-31 (see the filing on EDGAR). This is the count contemporaneous with the 2024-2025 meeting, so the percentages are the ones that were true then, not ones restated against today’s share count.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered investment companies and institutional managers disclose how they voted every proxy, 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 2025-03-31. This page is a static snapshot rebuilt weekly on 04 October 2026; a live search always shows the current data.

At AMPHASTAR PHARMACEUTICALS INC.'s shareholder meeting held 2025-06-02, in the 2024-2025 proxy season, 296 asset managers reported how they voted in their SEC Form N-PX filings, covering 2,219 separate fund positions. Their filings are grouped here into 11 reported items; because filers word the same ballot item differently, that can be more than the number of items on the ballot. AMPHASTAR PHARMACEUTICALS INC.'s own Form 8-K tally for this meeting is published below, but no row in it could be matched to the most widely held item, so this page states no certified outcome for that item. On that item — To approve, on an advisory basis, the compensation of the Company's named executive officers; — the reporting funds cast 95% of the shares they voted in favour (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). That is the aggregate of those managers' own N-PX disclosures, not the company's certified result, and the funds are a subset of all shareholders.

AMPHASTAR PHARMACEUTICALS INC. proxy season coverage: 2023-2024 · 2024-2025 (this page) · 2025-2026.