AMPH FY2025 SEC EDGAR DEF 14A #29 of 168 in industry

Amphastar Pharmaceuticals, Inc. CEO pay ratio

The CEO earned $8.3M in FY2025 against median worker pay of $61,658 · Chemicals & Pharmaceuticals.

Chemicals & Pharmaceuticals peers All rankings
State
CA
Filing date
2026-04-13
Industry
Chemicals & Pharmaceuticals
Industry rank
#29/168

Data updated August 2026

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CEO-to-worker pay ratio
135:1
Moderate (Scale: 0–1000:1)
CEO pay
$8.3M
Median worker
$61,658

Answer first

Amphastar Pharmaceuticals, Inc.'s FY2025 CEO total of $8.3M ranks #655 of 1,423 complete filings; its 135:1 pay ratio ranks #483. Dollar rank is not ratio rank.

According to the same FY2025 complete-filing cohort used on the rankings boards (CEO total, median worker, and ratio all present). Median worker pay is $61,658. Industry placement uses the FY2025 SIC-28 peer cohort (# 29 of 168, 83rd percentile - top quartile of industry peers by pay ratio). Figures come from Section 953(b) Dodd-Frank DEF 14A disclosures - not estimates. View all Chemicals & Pharmaceuticals companies.

Dollar rank
#655
$8.3M of 1,423 FY2025
Ratio rank
#483
135:1 of 1,423
Industry pct
83rd
top quartile of industry peers by pay ratio

How Amphastar Pharmaceuticals, Inc. ranks nationally

Amphastar Pharmaceuticals, Inc. CEO pay vs. every FY2025 complete filing

Total CEO compensation, the full national distribution, this company marked

$8,309,350 Top 46% higher than 54% of 1,423 companies

$0–$2,500,000: 304 companies (21%). Below this entry. $2,500,000–$5,000,000: 182 companies (13%). Below this entry. $5,000,000–$7,500,000: 208 companies (15%). Below this entry. $7,500,000–$10,000,000: 192 companies (13%). This entry sits in this band. $10,000,000–$12,500,000: 139 companies (10%). Above this entry. $12,500,000–$15,000,000: 91 companies (6%). Above this entry. $15,000,000–$17,500,000: 88 companies (6%). Above this entry. $17,500,000–$20,000,000: 54 companies (4%). Above this entry. $20,000,000–$22,500,000: 24 companies (2%). Above this entry. $22,500,000–$25,000,000: 34 companies (2%). Above this entry. $25,000,000–$27,500,000: 24 companies (2%). Above this entry. $27,500,000–$30,000,000: 16 companies (1%). Above this entry. $30,000,000–$32,500,000: 10 companies (1%). Above this entry. $32,500,000–$35,000,000: 7 companies (0%). Above this entry. $35,000,000–$37,500,000: 9 companies (1%). Above this entry. $37,500,000–$40,000,000: 6 companies (0%). Above this entry. $40,000,000–$42,500,000: 1 companies (0%). Above this entry. $42,500,000–$45,000,000: 1 companies (0%). Above this entry. $45,000,000–$47,500,000: 6 companies (0%). Above this entry. $47,500,000–$50,000,000: 27 companies (2%). Above this entry. This company $0 $50M+ every complete-filing company, bucketed by value

Each bar is a $2500K-wide band; taller bars hold more companies. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source SEC DEF 14A Section 953(b) disclosures, PlainCEOPay extract · FY2025

Amphastar Pharmaceuticals, Inc. vs. Chemicals & Pharmaceuticals peers

CEO total pay ($8.3M) against pay ratio (135:1) for Amphastar Pharmaceuticals, Inc. (marked) and its 5 closest same-industry peers, against the Chemicals & Pharmaceuticals industry median on both axes.

Pay + gap both highContained pay, wide gapHigh pay, contained gapBelow peer norms on both05747903.811495807.517243711.322991615.137.0:164.3:191.5:1118.7:1145.9:1CEO total payPay ratio (CEO : median worker)Amphastar Pharmaceuticals, Inc., CEO total pay: 8309350 · Pay ratio (CEO : median worker): 135:1Amphastar Pharmaceuticals, Inc.Balchem Corp, CEO total pay: 7894874 · Pay ratio (CEO : median worker): 135:1Balchem CorpFuller H B Co, CEO total pay: 8830569 · Pay ratio (CEO : median worker): 137:1Fuller H B CoBristol Myers Squibb Co, CEO total pay: 21902021 · Pay ratio (CEO : median worker): 131:1Bristol Myers Squibb CoAxalta Coating Systems Ltd., CEO total pay: 9551721 · Pay ratio (CEO : median worker): 130:1Axalta Coating Systems Ltd.LyondellBasell Industries N.V., CEO total pay: 110140 · Pay ratio (CEO : median worker): 141:1LyondellBasell Industries N.V.
Amphastar Pharmaceuticals, Inc. vs. Chemicals & Pharmaceuticals peers, plotted against the industry's $7.9M median CEO total and 42:1 median pay ratio.

Ratio bands among Chemicals & Pharmaceuticals peers

Exclusive CEO-to-median-worker bands across 153 complete latest-FY filings in SIC 28. Segments sum to the peer set, not this company's compensation pillar.

CEO Compensation Breakdown, FY2025

A component-level pay breakdown is not reported in Amphastar Pharmaceuticals, Inc.'s structured SEC pay-ratio disclosure. See our methodology →

Filing-year trail · Amphastar Pharmaceuticals, Inc.

Complete DEF 14A pay-ratio filings for this CIK across FY2021–2025. Year-over-year deltas compare adjacent filing years only; incomplete dollar rows are omitted (same completeness gate as the hero figures).

Latest ratio
135:1
FY2025
vs prior FY
+41:1
from FY2024 94:1
CEO $ YoY
+7.4%
$8.3M latest
Filings shown
5
FY2021–2025
Amphastar Pharmaceuticals, Inc. CEO total compensation, median worker pay, and pay ratio by fiscal year from SEC EDGAR DEF 14A.
FY CEO pay Δ pay Median worker Pay ratio Δ ratio
2021 $6.5M - $54,552 119:1 -
2022 $7.5M +15% $54,127 138:1 +19:1
2023 $7.7M +3.3% $88,042 88:1 -50:1
2024 $7.7M +0.2% $82,289 94:1 +6:1
2025 $8.3M +7.4% $61,658 135:1 +41:1

Source: SEC EDGAR DEF 14A pay-ratio disclosures for CIK 1297184, FY2021–2025. Adjacent-year deltas only.

Industry Comparison - Chemicals & Pharmaceuticals

This Company's Ratio
135:1
Industry Median Ratio
42:1
Industry Median CEO Pay
$7.9M
This CEO's Pay
$8.3M
Companies in Industry
168
vs. Industry Median
Above
#29 of 168 by pay ratio in this industry View all companies in Chemicals & Pharmaceuticals →

Amphastar Pharmaceuticals, Inc.: MID · HEAVY pay ratio

Amphastar Pharmaceuticals, Inc.'s FY2025 ratio 135:1 ranks #29 of 168 Chemicals & Pharmaceuticals filers (83rd percentile). the CEO earned 135× the median employee ($61,658) in FY2025.

Median employee $61,658 (PAR-MED); MID · HEAVY stamps put about 135 median-wage years per CEO year.

CEO Total Pay

$8.3M

FY2025 Summary Compensation, near median

Pay Ratio

135:1

Near industry median

Amphastar Pharmaceuticals, Inc. in the higher Chemicals & Pharmaceuticals third

Amphastar Pharmaceuticals, Inc.'s FY2025 ratio 135:1 ranks #29 of 168 Chemicals & Pharmaceuticals filers (83rd percentile). The structured pay-ratio disclosure reports the total without line-item components. Chemicals & Pharmaceuticals (SIC 28) median ratio is 42:1 across 168 FY2025 filers; Amphastar Pharmaceuticals, Inc.'s $8.3M CEO total is above the $7.9M industry median CEO pay.

Dollar rank #655 and ratio rank #483 split - treat 135:1 as a disclosure, not a fairness score. Open Chemicals & Pharmaceuticals peers.

Key Data, FY2025

Total Compensation
$8.3M
Median Employee Pay
$61,658
Pay Ratio
135:1
Filing Date
2026-04-13

Company Info

Ticker
AMPH
CIK
1297184
Industry
Chemicals & Pharmaceuticals
SIC Code
2834
State
CA
View SEC filings →
SEC EDGAR DEF 14A for CIK 1297184, FY2025. Informational only, not investment advice. Verify on EDGAR.

Read our methodology - how this data is sourced, computed, and verified. Amphastar Pharmaceuticals, Inc.'s FY2025 ratio 135:1 ranks #29 of 168 Chemicals & Pharmaceuticals filers (83rd percentile).

Read with Amphastar Pharmaceuticals, Inc.

ABS(ceo_total_comp) peers first, then a SIC pole and a stamp-branched guide - not a fixed Related strip. This page stamps MID · HEAVY · PAR-MED.

First American Financial Corp · HEAVY

ABS(ceo_total_comp) peer at $8.3M (Δ $484 lighter vs Amphastar Pharmaceuticals, Inc.); MID · HIGH-MED vs this page's MID · HEAVY · PAR-MED.
First Industrial Realty Trust Inc · HEAVY

ABS(ceo_total_comp) peer at $8.3M (Δ $21K lighter vs Amphastar Pharmaceuticals, Inc.); MODEST · ELITE-MED vs this page's MID · HEAVY · PAR-MED.
Sunrun Inc. · HEAVY

ABS(ceo_total_comp) peer at $8.3M (Δ $22K heavier vs Amphastar Pharmaceuticals, Inc.); MID · HIGH-MED vs this page's MID · HEAVY · PAR-MED.
Camden Property Trust · HEAVY

ABS(ceo_total_comp) peer at $8.3M (Δ $33K lighter vs Amphastar Pharmaceuticals, Inc.); MID · PAR-MED vs this page's MID · HEAVY · PAR-MED.
Balchem Corp (SIC 28 pole)

Balchem Corp stamps MID · HEAVY nearest in-SIC by ABS(pay_ratio) to Amphastar Pharmaceuticals, Inc.'s MID filing.
National dual ranks · #655/#483

Amphastar Pharmaceuticals, Inc.'s FY2025 package sits #655 by CEO dollars and #483 by ratio under HEAVY · MID.
Comp structure · HEAVY

Amphastar Pharmaceuticals, Inc.'s HEAVY CEO total is equity-sensitive - read what grant-date fair value does and does not mean.
Data sourced from SEC EDGAR DEF 14A for Amphastar Pharmaceuticals, Inc. (CIK 1297184), FY2025. See our methodology. Aggregated by PlainCEOPay as of August 2026.

Data currency: Executive compensation from SEC EDGAR DEF 14A proxy statements through fiscal year 2025, compiled and last refreshed August 2026. See our methodology for source dates and refresh cadence. Spot a figure that looks wrong? Report a correction.