Acumen Pharmaceuticals, Inc ABOS

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Acumen Pharmaceuticals, Inc. - Common Stock · Company · Nasdaq · Healthcare / Biotechnology

Paper trade (simulated — no real money)

Fill: USD 1.9800 · FX 1 USD = 1.277900 SGD · about SGD 2.5302 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 2.21 → 1.98 · -10.4%
3.3702.4601.550 1 2,3 4 5 6 7,8,9 10 11,12 13,14 15 16 17,18 19 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

Weekend
Weekend
2.0500 2.0500 1.8950 1.9800 541,781
2.0300 2.1400 2.0100 2.0600 569,500
2.0000 2.0800 1.9900 2.0300 397,600
1.7800 2.0700 1.7640 2.0150 784,300
1.7000 1.7800 1.6700 1.7700 274,600
Weekend
Weekend
1.6700 1.7150 1.6200 1.6900 449,300
1.7100 1.7550 1.6600 1.6700 602,500
1.8100 1.8700 1.7100 1.7450 619,800
2.0000 2.0000 1.8100 1.8150 646,100
2.1400 2.1400 2.0000 2.0200 291,500
Weekend
Weekend
2.1200 2.1700 2.0810 2.1400 357,500
2.0900 2.1350 2.0200 2.1000 505,200
2.0200 2.1700 2.0000 2.1000 623,100
2.1300 2.1400 2.0000 2.0300 562,900
2.0400 2.1600 2.0150 2.1300 713,900
Weekend
Weekend
2.1000 2.1000 2.0150 2.0400 580,500
2.2200 2.2900 2.0700 2.0700 832,800
2.2500 2.4500 2.1000 2.2200 1,482,700
2.3000 2.4200 2.2200 2.2450 1,086,800
2.2200 2.3750 2.1900 2.3000 856,300
Weekend
Weekend
2.2500 2.2950 2.2200 2.2400 235,300
2.3000 2.3400 2.2200 2.2350 265,800
2.6300 2.6300 2.3000 2.3050 467,900
2.6100 2.7050 2.6000 2.6500 567,700
2.6300 2.6450 2.5550 2.5900 395,200
Weekend
Weekend
2.5500 2.6700 2.5150 2.6500 889,900
2.6900 2.7600 2.5350 2.5700 490,000
2.9200 2.9500 2.5900 2.6100 369,000
19 · 8-K Pre-market · 05:26 ET 8-K ↗
2.7700 2.9000 2.6900 2.8900 359,300
2.9100 3.0150 2.7800 2.7900 394,200
Weekend
Weekend
2.9300 2.9850 2.8400 2.9200 318,200
2.7900 2.9000 2.7300 2.8600 467,800
3.1400 3.1600 2.8400 2.8500 369,200
3.1400 3.2900 3.0750 3.1600 358,100
No trading
Weekend
Weekend
3.0700 3.2300 3.0300 3.1800 315,400
3.1300 3.1650 3.0500 3.0900 452,300
2.9300 3.1250 2.9300 3.1000 247,300
2.8000 2.9500 2.8000 2.9200 188,900
2.9000 2.9200 2.7600 2.8500 244,200
Weekend
Weekend
3.0200 3.0200 2.8850 2.9200 305,800
2.9800 3.1700 2.9800 3.0300 270,800
3.0900 3.0900 2.9150 2.9900 235,000
3.0900 3.1690 3.0400 3.1000 300,700
3.1700 3.1700 3.0400 3.0750 276,000
Weekend
Weekend
3.2100 3.3400 3.1350 3.1600 715,800
3.1200 3.2450 3.0100 3.1900 599,700
2.7900 3.1700 2.7900 3.1500 617,800
2.6600 2.7900 2.6360 2.7400 309,400
2.6600 2.7400 2.6200 2.6600 412,800
Weekend
Weekend
2.5100 2.6950 2.4500 2.6700 526,700
2.5000 2.5500 2.3900 2.5500 449,100
18 · 10-Q After-hours · 16:13 ET 10-Q ↗
2.4100 2.5900 2.4000 2.5100 487,100
17 · 8-K Pre-market · 07:02 ET 8-K ↗
2.4400 2.5000 2.4200 2.4700 204,600
2.4100 2.4500 2.3700 2.4300 194,400
Weekend
Weekend
2.2900 2.4400 2.2900 2.4400 256,800
2.2400 2.3400 2.2300 2.2800 228,200
2.2600 2.2950 2.2200 2.2400 298,100
2.1800 2.2700 2.1800 2.2400 283,400
2.1700 2.2100 2.1100 2.1800 227,300
Weekend
Weekend
2.2100 2.3450 2.1200 2.1500 263,100
2.1200 2.1900 2.1000 2.1700 333,400
2.2900 2.3100 2.0950 2.1100 483,000
2.2000 2.3900 2.1300 2.2800 855,400
2.1900 2.2500 2.1750 2.2000 244,600
Weekend
Weekend
2.2000 2.2000 2.1150 2.1300 226,100
2.1700 2.2200 2.1200 2.1700 286,300
2.1900 2.2400 2.1800 2.2100 200,200
2.2200 2.2590 2.2050 2.2300 159,500
2.2500 2.3000 2.1550 2.2100 255,200
Weekend
Weekend
2.1200 2.2600 2.0900 2.2500 305,900
2.2300 2.2300 2.1150 2.1700 702,000
2.5400 2.5500 2.2030 2.2200 676,200
2.6700 2.7500 2.5100 2.5300 546,100
2.5900 2.7200 2.5700 2.6400 407,100
Weekend
Weekend
2.7300 2.7300 2.5400 2.6300 319,100
2.7400 2.8250 2.6900 2.7000 270,900
2.5400 2.7450 2.5400 2.7300 257,800
2.7000 2.7000 2.4700 2.5700 441,000
2.7400 2.7800 2.6600 2.6700 225,100
Weekend
Weekend
No trading
2.6200 2.7600 2.6200 2.7400 351,200
2.6500 2.7000 2.5000 2.5900 300,200
2.7700 2.8300 2.6450 2.6700 657,400
2.3750 2.7900 2.3750 2.7700 851,800
Weekend
Weekend
2.2000 2.3750 2.2000 2.3600 5,571,100
2.3200 2.3490 2.2000 2.2100 377,700
2.4000 2.4550 2.2950 2.3100 361,300
2.3500 2.5100 2.3500 2.4100 348,600
2.2900 2.4150 2.2900 2.4000 575,700
Weekend
Weekend
No trading
2.3200 2.3800 2.2400 2.2600 696,800
2.3200 2.4300 2.2100 2.2500 947,500
2.3500 2.4200 2.2900 2.2900 413,600
16 · 8-K Pre-market · 07:34 ET 8-K ↗
2.3700 2.4400 2.3350 2.3400 280,500
Weekend
Weekend
2.3600 2.4850 2.3600 2.3700 413,900
2.2400 2.3800 2.2000 2.3700 255,100
2.1900 2.3400 2.1900 2.2400 445,500
2.2000 2.2900 2.1850 2.1900 316,400
2.1700 2.2700 2.1500 2.1700 215,700
Weekend
Weekend
2.2900 2.3000 2.1150 2.1500 319,600
2.2950 2.4300 2.2700 2.2900 334,600
15 · 8-K After-hours · 16:43 ET 8-K ↗
2.3600 2.4000 2.2900 2.2900 299,900
2.5100 2.5100 2.3700 2.3700 265,900
2.6000 2.6590 2.5100 2.5100 427,100
Weekend
Weekend
2.5400 2.6300 2.5200 2.6000 189,600
2.5300 2.5850 2.4800 2.5400 266,400
2.4600 2.6000 2.4500 2.5400 287,000
2.5300 2.5650 2.3800 2.4200 303,600
No trading
Weekend
Weekend
2.5000 2.6000 2.4850 2.5100 396,200
2.3200 2.4900 2.3000 2.4900 412,900
2.1800 2.3800 2.1800 2.3500 343,000
2.1500 2.1950 2.0800 2.1700 440,000
2.2800 2.2950 2.1400 2.1800 494,300
Weekend
Weekend
2.3500 2.4000 2.2600 2.2800 390,200
2.5100 2.5200 2.3750 2.3900 262,800
2.4800 2.5350 2.4650 2.4900 177,900
14 · 10-Q After-hours · 17:16 ET 10-Q ↗
2.5800 2.6150 2.4400 2.4800 250,200
13 · 8-K Pre-market · 07:07 ET 8-K ↗
2.5400 2.7350 2.5400 2.5700 430,400
Weekend
Weekend
2.5000 2.5700 2.4100 2.5600 163,300
2.5400 2.5900 2.4000 2.4700 328,300
2.5400 2.6150 2.5150 2.5700 264,300
2.5000 2.5500 2.4700 2.5200 271,700
2.3900 2.5250 2.3500 2.4800 311,300
Weekend
Weekend
2.3600 2.4400 2.3500 2.3800 174,800
2.3500 2.4400 2.3350 2.3900 236,200
2.4300 2.4400 2.3300 2.3400 279,500
2.5100 2.5400 2.4500 2.4600 266,700
2.5700 2.6900 2.5000 2.5200 345,200
Weekend
Weekend
2.6600 2.6700 2.5350 2.5700 495,600
12 · DEFA14A After-hours · 16:31 ET DEFA14A ↗ 11 · DEF 14A After-hours · 16:30 ET DEF 14A ↗
2.7900 2.8800 2.6700 2.6700 300,600
2.7600 2.8600 2.7600 2.8100 311,800
2.8800 2.8800 2.7200 2.7300 278,100
2.8300 2.9900 2.8200 2.8400 310,400
Weekend
Weekend
2.7800 2.9000 2.7750 2.8200 441,200
2.6800 2.7400 2.6550 2.6900 327,200
2.6800 2.7400 2.6350 2.7200 347,800
2.5600 2.7200 2.5500 2.6800 384,100
2.4500 2.6300 2.4500 2.5100 465,000
Weekend
Weekend
2.5200 2.5500 2.4500 2.4700 263,700
2.5700 2.6650 2.5000 2.5100 511,200
2.7600 2.7800 2.5400 2.5800 375,600
2.7100 2.7200 2.4800 2.6300 759,400
2.7400 2.8100 2.6700 2.7600 544,200
Weekend
Weekend
No trading
2.4900 2.7450 2.4900 2.7000 635,900
10 · 424B3 After-hours · 17:15 ET 424B3 ↗
2.3800 2.6300 2.3800 2.5500 767,700
2.1900 2.4200 2.1900 2.3600 413,100
2.2800 2.3200 2.1700 2.1900 447,100
Weekend
Weekend
2.4800 2.5500 2.2500 2.2600 924,500
9 · S-3 After-hours · 16:29 ET S-3 ↗ 8 · 10-K After-hours · 16:06 ET 10-K ↗
2.5600 2.7500 2.3590 2.5500 735,300
7 · 8-K Pre-market · 07:04 ET 8-K ↗
2.6600 2.7800 2.6000 2.6300 426,100
2.6800 2.6800 2.5200 2.5900 651,200
2.7300 2.8050 2.6300 2.7100 588,100
Weekend
Weekend
2.8800 2.9350 2.6600 2.6700 490,900
2.8700 3.0350 2.8000 2.9200 577,600
3.0800 3.0800 2.8800 2.9200 529,000
3.3900 3.4600 3.0400 3.0900 758,400
3.5000 3.6000 3.2100 3.3400 9,318,300
6 · 8-K Pre-market · 07:01 ET 8-K ↗
Weekend
Weekend
3.2700 3.3500 2.9800 3.2700 393,600
3.3300 3.3610 3.0880 3.3000 282,200
3.3700 3.4630 3.1800 3.3700 275,800
3.1500 3.4950 3.1500 3.3600 376,100
3.2400 3.3000 3.0510 3.1400 306,500
Weekend
Weekend
3.2600 3.4000 3.2300 3.3100 211,700
3.2900 3.3500 3.1100 3.3400 325,600
3.3600 3.3700 3.1300 3.3100 245,500
3.2000 3.4100 3.0100 3.3100 391,000
3.1400 3.3150 2.9700 3.3000 545,500
Weekend
Weekend
2.8000 3.2500 2.8000 3.1400 853,500
2.8000 2.8850 2.7500 2.8300 201,300
2.8000 2.8100 2.6800 2.7800 213,300
2.5700 2.8000 2.4800 2.7600 234,200
2.5700 2.6300 2.5000 2.5800 193,600
Weekend
Weekend
2.6800 2.7500 2.5560 2.5700 221,500
2.5600 2.7300 2.5100 2.7200 244,800
2.4600 2.6500 2.4140 2.6100 274,400
2.5000 2.5100 2.3700 2.4500 192,900
No trading
Weekend
Weekend
2.3900 2.6500 2.3850 2.5100 281,800
2.5700 2.5700 2.3400 2.3900 262,300
2.4800 2.5800 2.3290 2.5600 296,000
2.4600 2.5750 2.3600 2.4700 374,000
2.4000 2.5100 2.2500 2.4800 350,500
Weekend
Weekend
2.3000 2.4700 2.2700 2.4000 504,900
2.4000 2.4300 2.2100 2.2500 610,800
2.5500 2.5950 2.3800 2.4500 430,800
2.6100 2.6500 2.3900 2.5700 549,400
2.5500 2.6900 2.4500 2.5900 445,200
Weekend
Weekend
2.7800 2.7900 2.4500 2.6000 700,300
2.8600 3.0000 2.6900 2.7900 846,600
2.9600 3.0500 2.6300 2.8100 2,223,500
2.2400 2.7280 2.2300 2.7200 6,491,700
2.4100 3.0100 2.0100 2.0800 12,221,700
Weekend
Weekend
1.9800 1.9800 1.8800 1.9800 141,300
1.8100 2.0250 1.8100 1.9900 239,100
1.8700 1.9160 1.7600 1.8100 212,400
1.8400 1.9200 1.8200 1.8600 73,200
No trading
Weekend
Weekend
1.8800 1.9900 1.8300 1.8900 305,700
1.8000 1.8800 1.7300 1.8600 127,500
1.7400 1.8400 1.7290 1.7900 221,300
1.7200 1.7600 1.6750 1.7300 106,600
1.8400 1.8400 1.6700 1.7200 302,200
5 · 8-K Pre-market · 08:33 ET 8-K ↗
Weekend
Weekend
1.8500 1.8500 1.7000 1.8100 284,600
1.9500 1.9500 1.7200 1.8600 588,300
1.9800 2.0400 1.9500 1.9900 220,200
1.9800 2.0510 1.9400 1.9600 166,600
2.0800 2.1330 1.9000 1.9800 182,200
Weekend
Weekend
2.1300 2.1400 1.9700 2.0200 145,900
No trading
2.0000 2.1400 2.0000 2.1100 184,200
1.9900 2.0000 1.9000 1.9950 162,500
2.0900 2.1100 1.9800 2.0000 228,200
Weekend
Weekend
2.1700 2.1750 2.0900 2.1100 92,800
No trading
2.1600 2.1800 2.1200 2.1600 98,000
2.2800 2.3200 2.1200 2.1700 202,400
2.1700 2.3900 2.1400 2.2800 359,800
Weekend
Weekend
2.1100 2.2800 2.1090 2.1500 264,000
2.0800 2.1200 2.0100 2.1200 180,000
2.1300 2.1500 2.0200 2.0500 123,400
2.0200 2.1100 2.0000 2.1000 144,500
2.1400 2.1500 1.9700 2.0600 125,000
Weekend
Weekend
2.0000 2.1900 2.0000 2.1400 277,200
1.8900 1.9900 1.8660 1.9600 156,100
1.9200 1.9550 1.8800 1.9000 90,600
1.9000 1.9500 1.8690 1.9500 106,300
1.8600 1.9500 1.8500 1.9400 81,800
Weekend
Weekend
2.0200 2.0200 1.8600 1.8600 167,000
1.9300 2.0000 1.9000 1.9800 168,900
1.7600 1.9400 1.7600 1.9300 136,200
1.8900 1.8900 1.7500 1.7500 127,200
1.8800 1.9360 1.8400 1.9000 133,600
Weekend
Weekend
1.9600 2.0200 1.8800 1.8800 53,300
No trading
1.9400 2.0300 1.9110 1.9500 158,000
1.7100 1.9600 1.6500 1.9400 373,900
1.6100 1.7300 1.6100 1.7000 149,700
Weekend
Weekend
1.5500 1.6100 1.5300 1.5700 82,600
1.5800 1.7170 1.5200 1.5600 147,700
1.6600 1.7000 1.5100 1.5500 132,700
1.6000 1.7010 1.5600 1.6600 133,000
1.7300 1.7400 1.5000 1.5800 259,600
Weekend
Weekend
1.7600 1.8000 1.7200 1.7300 88,600
1.9000 2.0000 1.7800 1.8100 160,600
4 · 424B5 Pre-market · 08:04 ET 424B5 ↗ 3 · 10-Q After-hours · 16:19 ET 10-Q ↗
1.9800 2.0400 1.8750 1.9500 408,600
2 · 8-K Pre-market · 07:09 ET 8-K ↗
1.8900 1.9800 1.8700 1.9700 106,300
1.8900 1.9100 1.8000 1.8900 122,900
1 · 8-K Pre-market · 08:25 ET 8-K ↗
Weekend
Weekend
1.8600 1.9200 1.7350 1.8800 282,800
2.0000 2.0500 1.9000 1.9000 174,700
1.9500 2.0850 1.9500 2.0300 85,900
2.1400 2.1600 1.9400 1.9400 275,400
2.2100 2.2400 2.1100 2.1800 198,200
Weekend
Weekend
2.2200 2.3000 2.1470 2.2100 239,000
2.2700 2.3300 2.1900 2.2200 117,100
2.3050 2.3700 2.2200 2.2600 210,700
2.2100 2.4600 2.1200 2.2900 710,100
2.2400 2.2400 2.1200 2.2000 273,600
Weekend
Weekend
2.1200 2.3500 2.1100 2.2100 473,000

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

19 8-K 8-K (opens SEC filing in a new tab) Pre-market · 05:26 ET Summarise
18 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:02 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:34 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:43 ET Summarise
14 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:16 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:07 ET Summarise
12 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
11 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
10 424B3 424B3 (opens SEC filing in a new tab) After-hours · 17:15 ET Summarise
9 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:29 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:01 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:33 ET Summarise
4 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 08:04 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:09 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:25 ET Summarise