Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Ac Immune SA (ACIU)

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

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +6
Streak
1Q ▲
Buyers last Q
53%

Smart Money Signals — ACIU

Based on 46 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 1 quarter in a row

last 6Q
For 1 consecutive quarter, more hedge funds added ACIU than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
🏔️

At the ownership peak (100% of max)

100% of all-time peak
46 hedge funds hold ACIU right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
📶

Steady growth — +18% more funds vs a year ago

fund count last 6Q
+7 new funds entered over the past year (+18% YoY). Gradual, steady growth in institutional ownership is generally a healthy signal — not a speculative rush, but consistent conviction.
🟡

Slight buying edge — 53% buying

23 buying20 selling
Last quarter: 23 funds bought or added vs 20 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
➡️

Steady new buyers — ~9 new funds per quarter

new funds entering per quarter
Funds opening this position for the first time: 4 → 6 → 6 → 9. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
🔒

61% of holders stayed for 2+ years

■ 61% conviction (2yr+) ■ 22% medium ■ 17% new
28 out of 46 hedge funds have held ACIU 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.
➡️

Steady discovery — ~9 new funds/quarter

3 → 4 → 6 → 6 → 9 new funds/Q
New funds entering each quarter: 4 → 6 → 6 → 9. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🏛️

Deep conviction — 72% of holders stayed 2+ years

■ 72% veterans ■ 16% 1-2yr ■ 12% new
Of 50 current holders: 36 (72%) have held for over 2 years without selling. These are not momentum buyers — they have lived through drawdowns and stayed. A large veteran base acts as a stabilizing force during selloffs.
📋

Smaller funds dominant — 15% AUM from top-100

15% from top-100 AUM funds
20 of 46 holders rank in the top 100 by AUM, but together hold only 15% of total institutional value. The stock is held primarily by smaller and mid-sized funds.
3.6
out of 10
Low Exit Risk
Exit risk score 3.6/10 — 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.

Institutional Sentiment Summary — ACIU

In 2026 Q1, 23 hedge funds were net buyers of ACIU (9 opened a new position, 14 added to an existing one), while 20 reduced or exited (17 trimmed, 3 sold completely) — a 53% buyer ratio, indicating a slight buying edge. Net fund flow last quarter: +6 funds (more new holders than closures). Total institutional holders: 46.

Hedge Fund Ownership: ACIU

How many hedge funds hold ACIU — quarterly history vs. share price
Quarterly hedge fund ownership of ACIU vs. share price

Market Analysis: ACIU

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: ACIU

-- --

Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

Is It Too Late to Buy Ac Immune SA (ACIU) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much ACIU has moved relative to its sector benchmark (XLV) since the 2026 Q1 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End March 31, 2026 · 76d ago
ACIU
-16.0%
XLV
+4.9%

ACIU outperformed XLV by -20.9% since March 31, 2026.

Since 13F Filing Date May 15, 2026 · 31d ago
ACIU
-17.2%
XLV
+6.0%

Since the filing became public, ACIU outperformed XLV by -23.2% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

3 top-rated funds 0 high-conviction
Consensus
2.6
/ 10
breadth
×
Elite
0.2
/ 10
conviction
Hedge Fund Positioning: ACIU
46 + Investors

Track Smart Money conviction in ACIU. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 46 40 15.0%
13F Shares 25M 26M -1.8%
Total Value $70M $81M -14.36%
New Positions 9 6 +3
Increased Positions 12 14 -2
Closed Positions 3 6 -3
Reduced Positions 16 11 +5
Total Calls 3 4 -25.0%
Total Puts 2 2 -
PUT/CALL Ratio 0.67 0.5 Bullish

Statistics: ACIU

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Financial Highlights

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Institutional Holders (2026 Q1)

46 + investors

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

QUARTER:
Top 25 ACIU holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Bvf Inc/Il 1.74% 19,822,436 $54.5M
2 Dauntless Investment Group, LLC 0.20% 107,489 $296K
3 Silverberg Bernstein Capital Management LLC 0.02% 10,000 $28K
4 China Universal Asset Management Co., Ltd. 0.00% 17,852 $49K
5 Renaissance Technologies LLC 0.00% 624,367 $1.7M
6 Quinn Opportunity Partners LLC 0.00% 10,100 $28K
7 Point72 Asset Management, L.P. 0.00% 293,200 $806K
8 Millennium Management LLC 0.00% 792,657 $2.2M
9 Banque Cantonale Vaudoise 0.00% 7,021 $19K
10 XTX Topco Ltd 0.00% 14,304 $39K
11 Arrowstreet Capital, Limited Partnership 0.00% 405,658 $1.1M
12 EFG International AG 0.00% 9,900 $27K
13 Wells Fargo & Company/Mn 0.00% 1,004,284 $2.8M
14 Tower Research Capital LLC (TRC) 0.00% 7,009 $19K
15 Activest Wealth Management 0.00% 1,000 $3K
16 Jump Financial, LLC 0.00% 11,125 $31K
17 Marshall Wace, LLP 0.00% 131,458 $362K
18 Strengthening Families & Communities, LLC 0.00% 200 —
19 Citadel Advisors LLC 0.00% 267,233 $735K
20 Hrt Financial LP 0.00% 17,276 $47K
21 Gf Fund Management CO. LTD. 0.00% 2,242 $6K
22 Two Sigma Investments, LP 0.00% 39,091 $108K
23 UBS Group AG 0.00% 101,629 $279K
24 Susquehanna International Group, LLP 0.00% 89,262 $245K
25 BlackRock, Inc. 0.00% 524,278 $1.4M
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 — Ac Immune SA (ACIU)

What does the Smart Money Trend signal show for ACIU?

Buying streak — 1 quarter in a row: For 1 consecutive quarter, more hedge funds added ACIU than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for ACIU?

Slight buying edge — 53% buying: Last quarter: 23 funds bought or added vs 20 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.

What is the fund quality score for ACIU holders?

Smaller funds dominant — 15% AUM from top-100: 20 of 46 holders rank in the top 100 by AUM, but together hold only 15% of total institutional value. The stock is held primarily by smaller and mid-sized funds.

How long have hedge funds held ACIU?

61% of holders stayed for 2+ years: 28 out of 46 hedge funds have held ACIU 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.

Is it too late to buy Ac Immune SA (ACIU) following the 2026 Q1 hedge fund 13F filings?

As of today, ACIU has moved -17.2% since the 2026 Q1 13F filing date (May 15, 2026), compared to +6.0% for the XLV sector ETF — an outperformance of -23.2%. Since the quarter end (March 31, 2026), ACIU has gained -16.0% vs +4.9% for XLV. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

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.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

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