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Security record · archived quarter

GOSS

Gossamer Bio, Inc. · Healthcare · Biotechnology

0.2045 +16.9% mkt cap $99.97M quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
61Tracked holders
-10Δ holders
149.99MShares held
$24.69MReported value
+3New positions
−13Exits
Rising 5 quarters of rising tracked shares ●●●●● How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -14.1% · share flow +30.0% · net new positions -16.4%formula
Concentrated accumulation — rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 61 -10 149.99M $24.69M +3 −13
Q1 2026 73 -3 96.26M $32.15M +6 −9
Q4 2025 76 -1 88.23M $273.50M −1
Q3 2025 18 +3 53.94M $141.87M +3
Q2 2025 12 0 44.92M $55.25M +1 −1
Q1 2025 9 +1 11.42M $12.56M +1
Q4 2024 8 0 11.95M $10.80M
Q3 2024 7 0 18.68M $18.44M
Q2 2024 7 23.16M $20.86M
Holder count
Who holds it · Q2 2026
#ManagerSharesΔ sharesValueTheir weightHeld
1 D. E. Shaw & Co. 40.96M +10417.7% $6.74M 0.0% ▲ Add 5 SEC ↗
2 D. E. Shaw & Co. 40.96M +10417.7% $6.74M 0.0% ▲ Add 5 SEC ↗
3 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
4 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
5 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
6 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
7 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
8 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
9 AQR Capital Management 15.63M +54.3% $2.57M 0.0% ▲ Add 4 SEC ↗
10 Renaissance Technologies 11.63M +854.9% $1.91M 0.0% ▲ Add 9 SEC ↗
11 Vanguard Capital Management Llc 9.42M +0.2% $1.55M 0.0% ▲ Add 2 SEC ↗
12 Barclays Plc 7.83M +155.5% $1.29M 0.0% ▲ Add 3 SEC ↗
13 Barclays Plc 7.83M +155.5% $1.29M 0.0% ▲ Add 3 SEC ↗
14 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
15 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
16 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
17 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
18 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
19 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
20 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
21 BlackRock (passive) 7.67M -54.4% $1.26M 0.0% ▼ Trim 5 SEC ↗
22 Arrowstreet Capital 7.57M New $1.25M 0.0% New 1 SEC ↗
23 Two Sigma Investments 7.43M +55.5% $1.22M 0.0% ▲ Add 9 SEC ↗
24 Qube Research & Technologies Ltd 7.07M +43.7% $1.16M 0.0% ▲ Add 3 SEC ↗
25 Corient Private Wealth LP 5.63M +41.1% $925,959 0.0% ▲ Add 3 SEC ↗
26 UBS Group AG 3.09M +64.2% $510,474 0.0% ▲ Add 3 SEC ↗
27 UBS Group AG 3.09M +64.2% $510,474 0.0% ▲ Add 3 SEC ↗
28 UBS Group AG 3.09M +64.2% $510,474 0.0% ▲ Add 3 SEC ↗
29 Squarepoint Ops LLC 2.56M -24.8% $420,780 0.0% ▼ Trim 3 SEC ↗
30 Geode Capital Management (passive) 2.48M -49.8% $408,706 0.0% ▼ Trim 9 SEC ↗
31 Geode Capital Management (passive) 2.48M -49.8% $408,706 0.0% ▼ Trim 9 SEC ↗
32 Millennium Management 2.40M +1182.0% $395,473 0.0% ▲ Add 9 SEC ↗
33 Marshall Wace 2.11M New $338,399 0.0% New 1 SEC ↗
34 Alyeska Investment Group, L.P. 2.05M 0.0% $337,667 0.0% Held 3 SEC ↗
35 Hsbc Holdings Plc 1.58M +1289.4% $267,389 0.0% ▲ Add 2 SEC ↗
36 Ensign Peak Advisors, Inc 1.45M -14.8% $238,831 0.0% ▼ Trim 2 SEC ↗
37 JPMorgan Chase 1.23M +1225.5% $201,495 0.0% ▲ Add 4 SEC ↗
38 JPMorgan Chase 1.23M +1225.5% $201,495 0.0% ▲ Add 4 SEC ↗
39 Deutsche Bank Ag\ 1.11M -15.3% $188,095 0.0% ▼ Trim 3 SEC ↗
40 Goldman Sachs Group 1.13M -4.4% $185,743 0.0% ▼ Trim 4 SEC ↗
41 Goldman Sachs Group 1.13M -4.4% $185,743 0.0% ▼ Trim 4 SEC ↗
42 State Street Global Advisors (passive) 1.11M -74.6% $183,483 0.0% ▼ Trim 7 SEC ↗
43 Charles Schwab Investment… 992.53K -34.3% $163,370 0.0% ▼ Trim 3 SEC ↗
44 Mariner, LLC 594.72K +42.1% $97,889 0.0% ▲ Add 3 SEC ↗
45 Mariner, LLC 594.72K +42.1% $97,889 0.0% ▲ Add 3 SEC ↗
46 Tudor Investment Corp Et Al 479.58K +316.2% $78,939 0.0% ▲ Add 3 SEC ↗
47 Northern Trust Corp 458.50K -67.5% $75,469 0.0% ▼ Trim 3 SEC ↗
48 Northern Trust Corp 458.50K -67.5% $75,469 0.0% ▼ Trim 3 SEC ↗
49 Invesco Ltd. 442.27K -4.9% $72,797 0.0% ▼ Trim 3 SEC ↗
50 Bank Of America Corp /De/ 396.73K -87.5% $65,063 0.0% ▼ Trim 3 SEC ↗
51 Bank Of America Corp /De/ 396.73K -87.5% $65,063 0.0% ▼ Trim 3 SEC ↗
52 Susquehanna International Group, Llp 383.05K +182.1% $63,050 0.0% ▲ Add 3 SEC ↗
53 LPL Financial LLC 332.53K -10.6% $54,735 0.0% ▼ Trim 3 SEC ↗
54 Mercer Global Advisors Inc /Adv 297.86K +57.3% $49,028 0.0% ▲ Add 3 SEC ↗
55 Morgan Stanley 241.59K -34.2% $39,766 0.0% ▼ Trim 4 SEC ↗
56 Morgan Stanley 241.59K -34.2% $39,766 0.0% ▼ Trim 4 SEC ↗
57 Morgan Stanley 241.59K -34.2% $39,766 0.0% ▼ Trim 4 SEC ↗
58 Morgan Stanley 241.59K -34.2% $39,766 0.0% ▼ Trim 4 SEC ↗
59 Morgan Stanley 241.59K -34.2% $39,766 0.0% ▼ Trim 4 SEC ↗
60 Prudential Financial Inc 227.55K +306.9% $37,455 0.0% ▲ Add 3 SEC ↗
61 Creative Planning 211.96K +68.7% $34,888 0.0% ▲ Add 3 SEC ↗
62 Cerity Partners LLC 160.40K +50.6% $26,404 0.0% ▲ Add 3 SEC ↗
63 Cerity Partners LLC 160.40K +50.6% $26,404 0.0% ▲ Add 3 SEC ↗
64 Cerity Partners LLC 160.40K +50.6% $26,404 0.0% ▲ Add 3 SEC ↗
65 HighTower Advisors, LLC 144.36K +120.0% $23,761 0.0% ▲ Add 3 SEC ↗
66 Wealth Enhancement Advisory… 153.90K +48.8% $21,955 0.0% ▲ Add 3 SEC ↗
67 Fidelity (FMR) 130.32K +478.8% $21,451 0.0% ▲ Add 5 SEC ↗
68 Russell Investments Group, Ltd. 121.04K -16.7% $19,921 0.0% ▼ Trim 3 SEC ↗
69 Russell Investments Group, Ltd. 121.04K -16.7% $19,921 0.0% ▼ Trim 3 SEC ↗
70 Russell Investments Group, Ltd. 121.04K -16.7% $19,921 0.0% ▼ Trim 3 SEC ↗
71 Russell Investments Group, Ltd. 121.04K -16.7% $19,921 0.0% ▼ Trim 3 SEC ↗
72 Osaic Holdings, Inc. 120.20K +8843.8% $19,232 0.0% ▲ Add 3 SEC ↗
73 Group One Trading Llc 110.93K +32.7% $18,259 0.0% ▲ Add 2 SEC ↗
74 Rockefeller Capital Management L.P. 105.87K -1.6% $17,426 0.0% ▼ Trim 3 SEC ↗
75 Rockefeller Capital Management L.P. 105.87K -1.6% $17,426 0.0% ▼ Trim 3 SEC ↗
76 Balyasny Asset Management L.P. 104.23K -98.2% $17,157 0.0% ▼ Trim 3 SEC ↗
77 Commonwealth Equity Services, Llc 101.99K -7.3% $16,790 0.0% ▼ Trim 3 SEC ↗
78 Focus Partners Wealth 92.85K +27.2% $15,283 0.0% ▲ Add 2 SEC ↗
79 Rhumbline Advisers 88.60K -59.1% $14,618 0.0% ▼ Trim 3 SEC ↗
80 Captrust Financial Advisors 81.78K +42.2% $13,461 0.0% ▲ Add 2 SEC ↗
81 Bnp Paribas Financial Markets 73.69K -22.9% $12,130 0.0% ▼ Trim 3 SEC ↗
82 Bank of New York Mellon Corp 45.71K -89.3% $7,524 0.0% ▼ Trim 3 SEC ↗
83 Bank of New York Mellon Corp 45.71K -89.3% $7,524 0.0% ▼ Trim 3 SEC ↗
84 Cetera Investment Advisers 30.75K 0.0% $5,061 0.0% Held 3 SEC ↗
85 Envestnet Asset Management Inc 18.84K New $3,100 0.0% New 1 SEC ↗
86 Royal Bank Of Canada 18.52K +151.3% $3,000 0.0% ▲ Add 3 SEC ↗
87 Royal Bank Of Canada 18.52K +151.3% $3,000 0.0% ▲ Add 3 SEC ↗
88 Nuveen, LLC 17.32K -87.0% $2,852 0.0% ▼ Trim 3 SEC ↗
89 Manufacturers Life Insurance… 15.91K -72.5% $2,618 0.0% ▼ Trim 3 SEC ↗
90 Neuberger Berman Group LLC 14.79K -13.7% $2,440 0.0% ▼ Trim 3 SEC ↗
91 Mirae Asset Global Investments Co.… 10.50K -13.1% $1,728 0.0% ▼ Trim 3 SEC ↗
92 Citigroup Inc 6.57K -63.0% $1,081 0.0% ▼ Trim 3 SEC ↗
93 Citigroup Inc 6.57K -63.0% $1,081 0.0% ▼ Trim 3 SEC ↗
94 Wells Fargo & Company/Mn 6.50K -91.5% $1,070 0.0% ▼ Trim 3 SEC ↗
95 Jones Financial Companies Lllp 4.50K -32.4% $707 0.0% ▼ Trim 3 SEC ↗
96 Pnc Financial Services Group, Inc. 2.17K +437.4% $358 0.0% ▲ Add 3 SEC ↗
97 TD Waterhouse Canada Inc. 15 0.0% $3 0.0% Held 2 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Arrowstreet Capital $1.25M 0.0%
Marshall Wace $338,399 0.0%
Envestnet Asset Management Inc $3,100 0.0%

Exited

Alliancebernstein L.P. $589,682 was 0.0%
Mackenzie Financial Corp $504,879 was 0.0%
Voya Investment Management Llc $284,683 was 0.0%
Connor, Clark & Lunn… $216,226 was 0.0%
T. Rowe Price $44,000 was 0.0%
Victory Capital Management Inc $35,196 was 0.0%
MIRAE ASSET GLOBAL ETFS… $30,031 was 0.0%
New York State Common… $14,323 was 0.0%
ProShare Advisors LLC $12,551 was 0.0%
Sei Investments Co $10,354 was 0.0%
Principal Financial Group Inc $5,777 was 0.0%
Legal & General Group Plc $5,682 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 2.17M shares, $845,282 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2026 · Methodology · Get this via the API