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SC 13D/A ·Filed Oct 29, 2026

GOSS

Gossamer Bio, Inc.
BEARISH
Impact 5/10
Processed1h 47m ago SEC0001104659-26-120319
Activist stake amendment (position change)

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Investment Themes

Documents Analyzed

This report is based on 7 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13D/A Filing (Primary)0001104659-26-120319
Document: tm2628588d1_ex99-4.htm0001104659-26-120319
Document: tm2628588d1_ex99-2.htm0001104659-26-120319
Document: tm2628588d1_ex99-3.htm0001104659-26-120319
Document: 0001104659-26-120319-index-headers.html0001104659-26-120319
Document: 0001104659-26-120319-index.html0001104659-26-120319
Document: 0001104659-26-120319.txt0001104659-26-120319
16 reports for GOSS
Performance horizon
80% Hit rate @ T+20 4 of 5 directional calls Went positive at some point 6 of 6 best @ T+60▲ +25.28%Jun 17, 2026
Filters
Rows
Reports for GOSS, sortable and filterable
TypeNow
Oct 29, 2026
today
SC 13D/A
BEARISH ★ 5/10
$10.70awaiting T+20awaiting T+20$10.69 (+0.09%)
Oct 8, 2026
21d ago
SC 13D/A
BEARISH ★ 5/10
$9.31awaiting T+20awaiting T+20$10.69 (−14.82%)
Sep 28, 2026
4w ago
SC 13D/A
BEARISH ★ 6/10
$11.58 $9.77▲ +15.63%▲ +16.34%$10.69 (+7.69%)
Sep 22, 2026
5w ago
Institutional Cluster
MIXED ★ 4/10
$11.69 $9.58▼ −18.05%▼ −17.49%$10.69 (−8.55%)
Sep 16, 2026
6w ago
8-K
NEUTRAL ★ 4/10
$11.94 $8.89▼ −25.54%▼ −26.75%$10.69 (−10.47%)
Sep 11, 2026
6w ago
8-K
BEARISH ★ 6/10
$10.73 $9.31▲ +13.23%▲ +15.10%$10.69 (+0.37%)
Sep 9, 2026
7w ago
8-K
NEUTRAL ★ 3/10
$0.1597 $0.1273▼ −20.32%▼ −22.26%$10.69 (+6593.80%)
Aug 21, 2026
9w ago
8-K
BEARISH ★ 6/10
$0.1547 $0.1410▲ +8.86%▲ +9.87%$10.69 (−6810.15%)
Aug 13, 2026
11w ago
8-K
NEUTRAL ★ 5/10
$0.1542 $0.1337▼ −13.26%▼ −11.27%$10.69 (+6832.55%)
Jul 1, 2026
17w ago
8-K
BEARISH ★ 5/10
$0.1677 $0.1783▼ −6.32%▼ −6.87%$10.69 (−6274.48%)
Showing 10 of 16

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Report published Oct 29, 2026

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