AMPH Hedge Fund Ownership (Q1 2026)

Amphastar Pharmaceuticals In (AMPH)

209 + Investors. Track Smart Money conviction in AMPH. See who's accumulating, reducing, or initiating positions.

Smart Money Signals — AMPH

Based on 210 hedge funds · latest filing: 2026 Q1 · updated quarterly

📉

Selling streak — 3 quarters in a row

last 6Q

For 3 consecutive quarters, more hedge funds reduced or closed their AMPH positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.

📊

High ownership — 77% of 3.0Y peak

77% of all-time peak

210 funds currently hold this stock — 77% of the 3.0-year high of 273 funds (reached 2024 Q3). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.

📉

Outflows — 13% fewer funds vs a year ago

fund count last 6Q

31 fewer hedge funds hold AMPH compared to a year ago (-13% decline). When institutions consistently reduce their exposure, it's worth exploring the underlying fundamental reasons driving them away.

🟠

More sellers than buyers — 41% buying

99 buying141 selling

Last quarter: 141 funds reduced or exited vs 99 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.

➡️

Steady new buyers — ~30 new funds per quarter

new funds entering per quarter

Funds opening this position for the first time: 43 → 35 → 26 → 30. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.

🔒

60% of holders stayed for 2+ years

■ 60% conviction (2yr+) ■ 26% medium ■ 14% new

125 out of 210 hedge funds have held AMPH for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

💎

Buying through price weakness — shares -4%, value -32%

Value

-32%

-4%

Last quarter: funds added -4% more shares while total portfolio value only changed -32%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.

📊

Peak discovery — momentum slowing

35 → 43 → 35 → 26 → 30 new funds/Q

New funds entering each quarter: 43 → 35 → 26 → 30. AMPH is well-known in the hedge fund world, but fresh entries are gradually declining. The explosive phase of institutional discovery is likely behind us.

🏛️

Veteran-anchored — 65% veterans vs 21% newcomers

■ 65% veterans ■ 15% 1-2yr ■ 21% new

Entry-cohort mix of 212 holders: 137 (65%) are 2+ year veterans, 31 entered 1–2 years ago, and 44 (21%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.

🏆

Elite ownership — 61% AUM from top-100 funds

61% from top-100 AUM funds

50 of 210 holders are among the 100 largest funds by AUM, controlling 61% of total institutional value in AMPH. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

2.7

out of 10

Low Exit Risk

Exit risk score 2.7/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Metric	All 13F Filers (2026 Q1)	Prior (2025 Q4)	Change
Funds Holding	209	230	-9.13%
13F Shares	32M	33M	-4.21%
Total Value	$606M	$892M	-32.08%
New Positions	29	26	+3
Increased Positions	67	90	-23
Closed Positions	50	33	+17
Reduced Positions	90	86	+4
Total Calls	2	2	-
Total Puts	0	0	-
PUT/CALL Ratio	0.0	0.0	Bullish

Metric

All 13F Filers (2026 Q1)

Prior (2025 Q4)

Change

Funds Holding

209

230

-9.13%

13F Shares

32M

33M

-4.21%

Total Value

$606M

$892M

-32.08%

New Positions

Increased Positions

-23

Closed Positions

+17

Reduced Positions

Total Calls

Total Puts

PUT/CALL Ratio

0.0

Bullish

Institutional Holders (2026 Q2)

209 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in AMPH. Verified SEC 13F-HR filings.

QUARTER:

2026 Q2 filings are still coming in. Only funds that have filed so far are shown — top holders may not have reported yet. Full 13F data typically settles by ~50 days after quarter-end.

FILTER:All New Added To Reduced No Change | Overweight >5%

Top 25 AMPH holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
#	Investor	% of Portfolio	Shares	Mkt Value
1	Bridge City Capital, LLC	1.56%	338,708	$6.8M
2	Lam Group, INC.	1.31%	130,800	$2.6M
3	Denali Advisors LLC	0.76%	375,965	$7.6M
4	Illumine Investment Management, LLC	0.39%	—	$594K
5	SummerHaven Investment Management, LLC	0.35%	32,633	$659K
6	Significant Wealth Partners LLC	0.23%	10,424	$210K
7	EntryPoint Capital, LLC	0.16%	5,898	$236K
8	Corient IA LP	0.12%	6,670	$135K
9	Polaris Capital Management, LLC	0.08%	43,232	$872K
10	Legato Capital Management LLC	0.06%	34,135	$689K
11	Fuller & Thaler Asset Management, INC.	0.05%	949,238	$19.2M
12	Advisory Research Inc	0.05%	25,337	$511K
13	Fox Run Management, L.L.C.	0.05%	14,556	$294K
14	Advisor OS, LLC	0.03%	25,405	$513K
15	Algert Global LLC	0.03%	131,400	$2.7M
16	SteelPeak Wealth, LLC	0.03%	48,684	$982K
17	Campbell & CO Investment Adviser LLC	0.02%	23,211	$468K
18	Marshall Wace, LLP	0.02%	1,066,322	$21.5M
19	O'shaughnessy Asset Management, LLC	0.01%	159,427	$3.2M
20	Renaissance Technologies LLC	0.01%	525,100	$10.6M
21	State of Wyoming	0.01%	7,022	$142K
22	Y-Intercept (Hong Kong) Ltd	0.01%	34,704	$700K
23	American Century Companies Inc	0.01%	1,176,626	$23.7M
24	Intech Investment Management LLC	0.01%	49,839	$1.0M
25	China Universal Asset Management Co., Ltd.	0.01%	7,017	$142K

Investor	Ownership History	% of Portfolio	Prev %	Rank	Conviction	Avg Buy Price	13F Score™ 3Y / 7Y	Sell Timing	Shares	Mkt Value	Change	Change %	Source	Quarter	Filed

Frequently Asked Questions — Amphastar Pharmaceuticals In (AMPH)

What does the Smart Money Trend signal show for AMPH?

Selling streak — 3 quarters in a row: For 3 consecutive quarters, more hedge funds reduced or closed their AMPH positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.

What is the institutional breadth score for AMPH?

More sellers than buyers — 41% buying: Last quarter: 141 funds reduced or exited vs 99 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.

What is the fund quality score for AMPH holders?

Elite ownership — 61% AUM from top-100 funds: 50 of 210 holders are among the 100 largest funds by AUM, controlling 61% of total institutional value in AMPH. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held AMPH?

60% of holders stayed for 2+ years: 125 out of 210 hedge funds have held AMPH for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

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Amphastar Pharmaceuticals In (AMPH)

Smart Money Signals — AMPH

Selling streak — 3 quarters in a row

High ownership — 77% of 3.0Y peak

Outflows — 13% fewer funds vs a year ago

More sellers than buyers — 41% buying

Steady new buyers — ~30 new funds per quarter

60% of holders stayed for 2+ years

Buying through price weakness — shares -4%, value -32%

Peak discovery — momentum slowing

Veteran-anchored — 65% veterans vs 21% newcomers

Elite ownership — 61% AUM from top-100 funds

Institutional Sentiment Summary — AMPH

Hedge Fund Ownership: AMPH

Market Analysis: AMPH

Analyst Price Targets

Analyst Recommendations

Stock Performance

Company Profile: AMPH

Hedge Fund Positioning: AMPH

Statistics: AMPH

Valuation Measures Data as of: --

Financial Highlights

Institutional Holders (2026 Q2)

Frequently Asked Questions — Amphastar Pharmaceuticals In (AMPH)

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