Latest 10-Q

What changed in Gossamer Bio, Inc.'s latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.

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13F holders

Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.

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Lobbying

What Gossamer Bio, Inc. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.

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Lobbying and contracts

$10.0K · — in 12 mo

What Gossamer Bio, Inc. reported spending on lobbying next to the federal contracts it was awarded, by year.Lobbying: each report counts once. If a report was amended, only the newest version counts. Totals use the company's own report when it files one (it includes payments to hired firms); otherwise the hired firms' reported income. Registrations and reports with no amount are not counted. A firm that hands part of its work to another firm may report the same money as that other firm does; the filings do not allow us to tell. Contracts: each award is counted once, for the company that received it (or its listed parent when only the parent is matched), in the year of its first obligation. The amount is the total obligated to date, so a later increase is counted in the year the award began. Only awards of $1 million or more are collected. Agencies: the offices named on lobbying reports and the awarding agencies of contracts are matched to one department name (the Army, Navy and Air Force count as the Department of Defense; NIH, FDA and CMS as Health and Human Services). An agency is listed under both when the company lobbied it and was awarded a contract by it in the same period. Offices outside this list, and Congress, are not counted as agencies.

Lobbying and federal contracts of Gossamer Bio, Inc. by year
YearLobbyingReportsTop issuesAgencies lobbiedContractsAwardsAwarding agenciesPAC giftsGifts by the company's PAC to candidates for Congress. They come from donations to the PAC, not from the company's own funds.Lobbied and awarding
2026 (year to date)$10.0K1Health issuesHHS—————

Agencies both lobbied and awarding contracts

No agency appears on both sides in the last 12 months.

Lobbying and contract awards are reported separately; showing them together does not mean one caused the other.

All companies · Contract awards · Lobbying reports

Capitol Hires at Gossamer Bio, Inc.

11 hires

Lobbyists for Gossamer Bio, Inc. who say they once worked in Congress or the executive branch.

Capitol Hires at Gossamer Bio, Inc.
The covered position the lobbyist says they held: an office of a member of Congress, a committee or an executive-branch body, as written in the filing. The member's name is a link only when exactly one member of Congress fits the name, chamber, first name and years given; otherwise it stays as written.The lobbying report (LDA form LD-2) that names this lobbyist and office, with a link to it. Report period is the quarter the report covers; Posted is the day it was filed or amended, which can be much later. The same lobbyist is named again on each quarterly report for the same client, so a row is shown once, from the newest report, with the number of filings that name them.
John HerzogLamar Alexander
Member office · Republican-TN
Health AideJeffrey J. Kimbell & Associates, Inc.
Report period 2026 Q3 ↗
Posted Oct 20, 2026 · in 2 filings
John HerzogExecutive Office of the President
Executive branch
Special Assistant to the Assistant to the President for Legislative AffairsJeffrey J. Kimbell & Associates, Inc.
Report period 2026 Q3 ↗
Posted Oct 20, 2026 · in 2 filings
Keith StuddardMarsha Blackburn
Member office · Republican-TN
Legislative DirectorJeffrey J. Kimbell & Associates, Inc.
Report period 2026 Q3 ↗
Posted Oct 20, 2026 · in 2 filings
John RayMike Kelly
Member office · Republican-PA
Legislative AssistantJeffrey J. Kimbell & Associates, Inc.
Report period 2026 Q3 ↗
Posted Oct 20, 2026 · in 2 filings
Laura KemperJohn Cornyn
Member office · Republican-TX
CounselJeffrey J. Kimbell & Associates, Inc.
Report period 2026 Q3 ↗
Posted Oct 20, 2026 · in 2 filings

Each row reflects what was disclosed at the time of filing. A lobbyist listed may no longer be registered.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

About the company

The basics from the company’s SEC registration.

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$10.97−$0.27 (−2.40%) Nov 13 close
Oct 13, 2026: $9.76Oct 14, 2026: $8.91Oct 15, 2026: $8.89Oct 16, 2026: $8.77Oct 19, 2026: $8.43Oct 20, 2026: $9.58Oct 21, 2026: $9.79Oct 22, 2026: $9.46Oct 23, 2026: $9.61Oct 26, 2026: $9.15Oct 27, 2026: $9.77Oct 28, 2026: $10.69Oct 29, 2026: $10.69Oct 30, 2026: $10.38Nov 2, 2026: $9.45Nov 3, 2026: $9.28Nov 4, 2026: $9.95Nov 5, 2026: $9.42Nov 6, 2026: $9.77Nov 9, 2026: $10.65Nov 10, 2026: $11.28Nov 11, 2026: $11.69Nov 12, 2026: $11.24Nov 13, 2026: $10.97
Oct 13, 2026Low $8.43 · High $11.69Nov 13, 2026
Aug 13, 2026: $13.62Aug 14, 2026: $12.34Aug 17, 2026: $11.20Aug 18, 2026: $11.45Aug 19, 2026: $12.53Aug 20, 2026: $12.60Aug 21, 2026: $12.38Aug 24, 2026: $14.00Aug 25, 2026: $16.36Aug 26, 2026: $13.91Aug 27, 2026: $13.61Aug 28, 2026: $13.61Aug 31, 2026: $13.60Sep 1, 2026: $13.39Sep 2, 2026: $13.82Sep 3, 2026: $14.05Sep 4, 2026: $14.02Sep 8, 2026: $14.39Sep 9, 2026: $12.78Sep 10, 2026: $11.39Sep 11, 2026: $10.73Sep 14, 2026: $10.70Sep 15, 2026: $10.38Sep 16, 2026: $10.96Sep 17, 2026: $11.94Sep 18, 2026: $10.73Sep 21, 2026: $11.28Sep 22, 2026: $11.69Sep 23, 2026: $10.99Sep 24, 2026: $10.93Sep 25, 2026: $10.94Sep 28, 2026: $11.52Sep 29, 2026: $11.58Sep 30, 2026: $11.85Oct 1, 2026: $10.93Oct 2, 2026: $10.71Oct 5, 2026: $10.65Oct 6, 2026: $10.78Oct 7, 2026: $10.18Oct 8, 2026: $9.88Oct 9, 2026: $9.31Oct 12, 2026: $9.28Oct 13, 2026: $9.76Oct 14, 2026: $8.91Oct 15, 2026: $8.89Oct 16, 2026: $8.77Oct 19, 2026: $8.43Oct 20, 2026: $9.58Oct 21, 2026: $9.79Oct 22, 2026: $9.46Oct 23, 2026: $9.61Oct 26, 2026: $9.15Oct 27, 2026: $9.77Oct 28, 2026: $10.69Oct 29, 2026: $10.69Oct 30, 2026: $10.38Nov 2, 2026: $9.45Nov 3, 2026: $9.28Nov 4, 2026: $9.95Nov 5, 2026: $9.42Nov 6, 2026: $9.77Nov 9, 2026: $10.65Nov 10, 2026: $11.28Nov 11, 2026: $11.69Nov 12, 2026: $11.24Nov 13, 2026: $10.97
Aug 13, 2026Low $8.43 · High $16.36Nov 13, 2026
Nov 13, 2025: $200.80Nov 14, 2025: $216.80Nov 17, 2025: $239.20Nov 18, 2025: $244.00Nov 19, 2025: $251.20Nov 20, 2025: $248.80Nov 21, 2025: $244.80Nov 24, 2025: $254.40Nov 25, 2025: $261.60Nov 26, 2025: $267.20Nov 28, 2025: $267.20Dec 1, 2025: $251.20Dec 2, 2025: $239.20Dec 3, 2025: $273.60Dec 4, 2025: $265.60Dec 5, 2025: $266.40Dec 8, 2025: $272.80Dec 9, 2025: $276.00Dec 10, 2025: $279.20Dec 11, 2025: $289.60Dec 12, 2025: $288.00Dec 15, 2025: $303.20Dec 16, 2025: $284.80Dec 17, 2025: $285.60Dec 18, 2025: $274.40Dec 19, 2025: $275.20Dec 22, 2025: $301.60Dec 23, 2025: $262.80Dec 24, 2025: $275.20Dec 26, 2025: $258.40Dec 29, 2025: $256.80Dec 30, 2025: $249.60Dec 31, 2025: $248.00Jan 2, 2026: $230.40Jan 5, 2026: $219.20Jan 6, 2026: $204.80Jan 7, 2026: $192.80Jan 8, 2026: $200.00Jan 9, 2026: $200.00Jan 12, 2026: $201.60Jan 13, 2026: $212.80Jan 14, 2026: $204.00Jan 15, 2026: $196.00Jan 16, 2026: $201.60Jan 20, 2026: $208.00Jan 21, 2026: $219.20Jan 22, 2026: $229.60Jan 23, 2026: $216.00Jan 26, 2026: $212.80Jan 27, 2026: $211.20Jan 28, 2026: $204.00Jan 29, 2026: $193.60Jan 30, 2026: $182.40Feb 2, 2026: $198.40Feb 3, 2026: $213.60Feb 4, 2026: $196.80Feb 5, 2026: $194.80Feb 6, 2026: $180.80Feb 9, 2026: $180.80Feb 10, 2026: $186.40Feb 11, 2026: $188.00Feb 12, 2026: $185.60Feb 13, 2026: $183.20Feb 17, 2026: $172.00Feb 18, 2026: $173.60Feb 19, 2026: $168.80Feb 20, 2026: $170.40Feb 23, 2026: $33.86Feb 24, 2026: $33.23Feb 25, 2026: $30.41Feb 26, 2026: $32.16Feb 27, 2026: $33.99Mar 2, 2026: $34.29Mar 3, 2026: $37.60Mar 4, 2026: $46.40Mar 5, 2026: $41.74Mar 6, 2026: $40.06Mar 9, 2026: $44.42Mar 10, 2026: $40.57Mar 11, 2026: $39.21Mar 12, 2026: $36.80Mar 13, 2026: $34.97Mar 16, 2026: $36.48Mar 17, 2026: $37.74Mar 18, 2026: $34.73Mar 19, 2026: $36.16Mar 20, 2026: $33.79Mar 23, 2026: $29.86Mar 24, 2026: $27.59Mar 25, 2026: $30.52Mar 26, 2026: $29.98Mar 27, 2026: $27.72Mar 30, 2026: $25.60Mar 31, 2026: $26.28Apr 1, 2026: $29.20Apr 2, 2026: $29.60Apr 6, 2026: $27.67Apr 7, 2026: $26.38Apr 8, 2026: $27.79Apr 9, 2026: $29.73Apr 10, 2026: $32.76Apr 13, 2026: $32.05Apr 14, 2026: $34.53Apr 15, 2026: $36.07Apr 16, 2026: $34.99Apr 17, 2026: $35.68Apr 20, 2026: $33.60Apr 21, 2026: $30.19Apr 22, 2026: $31.19Apr 23, 2026: $29.89Apr 24, 2026: $29.02Apr 27, 2026: $27.88Apr 28, 2026: $27.59Apr 29, 2026: $27.97Apr 30, 2026: $29.42May 1, 2026: $29.58May 4, 2026: $28.03May 5, 2026: $26.88May 6, 2026: $28.02May 7, 2026: $27.50May 8, 2026: $26.16May 11, 2026: $27.10May 12, 2026: $27.25May 13, 2026: $27.49May 14, 2026: $26.40May 15, 2026: $27.20May 18, 2026: $15.42May 19, 2026: $15.93May 20, 2026: $17.22May 21, 2026: $16.07May 22, 2026: $16.81May 26, 2026: $17.60May 27, 2026: $17.43May 28, 2026: $16.89May 29, 2026: $18.47Jun 1, 2026: $15.85Jun 2, 2026: $16.02Jun 3, 2026: $15.06Jun 4, 2026: $14.22Jun 5, 2026: $14.00Jun 8, 2026: $13.25Jun 9, 2026: $12.80Jun 10, 2026: $12.48Jun 11, 2026: $14.19Jun 12, 2026: $12.95Jun 15, 2026: $13.36Jun 16, 2026: $13.42Jun 17, 2026: $14.32Jun 18, 2026: $13.44Jun 22, 2026: $13.14Jun 23, 2026: $13.71Jun 24, 2026: $13.52Jun 25, 2026: $13.22Jun 26, 2026: $12.56Jun 29, 2026: $13.12Jun 30, 2026: $13.17Jul 1, 2026: $13.42Jul 2, 2026: $13.86Jul 6, 2026: $15.59Jul 7, 2026: $14.20Jul 8, 2026: $13.52Jul 9, 2026: $14.00Jul 10, 2026: $13.58Jul 13, 2026: $11.53Jul 14, 2026: $11.21Jul 15, 2026: $12.94Jul 16, 2026: $13.64Jul 17, 2026: $13.61Jul 20, 2026: $11.28Jul 21, 2026: $12.38Jul 22, 2026: $11.57Jul 23, 2026: $11.40Jul 24, 2026: $10.88Jul 27, 2026: $15.95Jul 28, 2026: $16.41Jul 29, 2026: $16.54Jul 30, 2026: $14.26Jul 31, 2026: $13.56Aug 3, 2026: $13.89Aug 4, 2026: $14.52Aug 5, 2026: $14.22Aug 6, 2026: $14.27Aug 7, 2026: $14.24Aug 10, 2026: $14.09Aug 11, 2026: $14.54Aug 12, 2026: $14.21Aug 13, 2026: $13.62Aug 14, 2026: $12.34Aug 17, 2026: $11.20Aug 18, 2026: $11.45Aug 19, 2026: $12.53Aug 20, 2026: $12.60Aug 21, 2026: $12.38Aug 24, 2026: $14.00Aug 25, 2026: $16.36Aug 26, 2026: $13.91Aug 27, 2026: $13.61Aug 28, 2026: $13.61Aug 31, 2026: $13.60Sep 1, 2026: $13.39Sep 2, 2026: $13.82Sep 3, 2026: $14.05Sep 4, 2026: $14.02Sep 8, 2026: $14.39Sep 9, 2026: $12.78Sep 10, 2026: $11.39Sep 11, 2026: $10.73Sep 14, 2026: $10.70Sep 15, 2026: $10.38Sep 16, 2026: $10.96Sep 17, 2026: $11.94Sep 18, 2026: $10.73Sep 21, 2026: $11.28Sep 22, 2026: $11.69Sep 23, 2026: $10.99Sep 24, 2026: $10.93Sep 25, 2026: $10.94Sep 28, 2026: $11.52Sep 29, 2026: $11.58Sep 30, 2026: $11.85Oct 1, 2026: $10.93Oct 2, 2026: $10.71Oct 5, 2026: $10.65Oct 6, 2026: $10.78Oct 7, 2026: $10.18Oct 8, 2026: $9.88Oct 9, 2026: $9.31Oct 12, 2026: $9.28Oct 13, 2026: $9.76Oct 14, 2026: $8.91Oct 15, 2026: $8.89Oct 16, 2026: $8.77Oct 19, 2026: $8.43Oct 20, 2026: $9.58Oct 21, 2026: $9.79Oct 22, 2026: $9.46Oct 23, 2026: $9.61Oct 26, 2026: $9.15Oct 27, 2026: $9.77Oct 28, 2026: $10.69Oct 29, 2026: $10.69Oct 30, 2026: $10.38Nov 2, 2026: $9.45Nov 3, 2026: $9.28Nov 4, 2026: $9.95Nov 5, 2026: $9.42Nov 6, 2026: $9.77Nov 9, 2026: $10.65Nov 10, 2026: $11.28Nov 11, 2026: $11.69Nov 12, 2026: $11.24Nov 13, 2026: $10.97
Nov 13, 2025Low $8.43 · High $303.20Nov 13, 2026
Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. The stock split 1-for-80 on Sep 11, 2026; earlier prices are shown divided by the split ratio. Where prices come from.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.