13FPulse
AB

ABOS ACUMEN PHARMACEUTICALS INC

2026Q2 · CUSIP 00509G209 · Sector: Healthcare & Biotech

Normal

Fund flows are within the usual range

Funds that own it
97
Institutions that reported holding it to the SEC
Net increase in holders
+14
Last quarter 83 → now 97
How unusual is that
Above average
Stronger buying than 77% of US stocks
What the filings say, in one paragraph

97 funds held ABOS at the end of 2026Q2, up 14 from the quarter before. Fund flows are within the usual range — nothing unusual. On the business itself, return on equity is -183.4%. ABOS has had 1 buying rushes in its history, and the price moved +71.4% on average over the six months after (that is the raw price move, not how much it beat the market by). It sits in the Healthcare & Biotech sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2021Q4: holders=52 2022Q1: holders=57 2022Q2: holders=47 2022Q3: holders=50 2022Q4: holders=61 2023Q1: holders=62 2023Q2: holders=54 2023Q3: holders=66 2023Q4: holders=67 2024Q1: holders=80 2024Q2: holders=81 2024Q3: holders=73 2024Q4: holders=80 2025Q1: holders=81 2025Q2: holders=69 2025Q3: holders=69 2025Q4: holders=71 2026Q1: holders=83 2026Q2: holders=97 -14 -7 +0 +7 +14 4272102 21Q422Q222Q423Q223Q424Q224Q425Q225Q426Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 1 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2023Q3 Top 20% +48.2% +71.4%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
57
Change in large funds
+11
Total value they hold
$128M
Funds buying for the first time
32
Funds that sold out entirely
18
Price change that quarter
+42.2%
Funds holding puts (bearish)
0
Funds holding calls (bullish)
1

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$-1.62
EPS YoY
Revenue (TTM)
Revenue YoY
Net margin
ROE
-183.4%
Debt ratio
50.6%
FCF (TTM)
-$92M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2021-09-30: EPS -0.10 2021-12-31: EPS 201.42 2022-03-31: EPS -0.23 2022-06-30: EPS -0.25 2022-09-30: EPS -0.26 2022-12-31: EPS -0.32 2023-03-31: EPS -0.28 2023-06-30: EPS -0.28 2023-09-30: EPS -0.24 2023-12-31: EPS -0.28 2024-03-31: EPS -0.25 2024-06-30: EPS -0.34 2024-09-30: EPS -0.50 2024-12-31: EPS -0.62 2025-03-31: EPS -0.48 2025-06-30: EPS -0.68 2025-09-30: EPS -0.44 2025-12-31: EPS -0.40 2026-03-31: EPS -0.33 2026-06-30: EPS -0.45 -0.75 110.41 221.56 20212022202320242025202606/26 EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

P/E (TTM) over time
0 0 0 20222023202420252026

P/E = close around day 47 after quarter-end ÷ TTM EPS then; this is a consistent valuation date, not the company’s actual filing date; loss quarters hidden

Quarterly free cash flow
-34M-17M0K 202120222023202420252026
Latest quarter $-24M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-06-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.