Gossamer Bio (GOSS) Stock: Insider Trades, Congress & Funds

Smart money at a glance

Filings to Oct 30, 2026

No insider open-market trades in 90 days (SEC Form 4). Congress: no trades disclosed in 180 days.

Company insidersSEC Form 4, last 90 days: $0No open-market trades
CongressSTOCK Act, last 180 days: NoneNo trades disclosed
Big fundsSEC 13F, quarter ended Mar 31, 2026: 0 added, 2 cutMore cutting
Federal contractsUSAspending.gov, last 12 months: No awardsNone on record

Analysts

What do analysts expect?

Analyst target and ratings are on paid plans

See the 12-month consensus target and the buy/hold/sell rating split.

Unlock the full results

Questions about GOSS filings

Are insiders buying or selling Gossamer Bio Inc (GOSS) stock?

Neither. Gossamer Bio Inc (GOSS) insiders filed no open-market purchases or sales in the 90 days to Oct 30, 2026, according to SEC Form 4 filings.

Which members of Congress have traded GOSS recently?

None. No member of Congress disclosed a GOSS trade with a trade date in the last 180 days, according to House and Senate STOCK Act filings.

How current is this GOSS smart-money data?

This summary uses filings available on Oct 30, 2026. Insiders must report trades to the SEC within 2 business days, members of Congress have up to 45 days to disclose a trade, and funds file 13F holdings up to 45 days after each quarter ends, so the latest moves may not be public yet.

13F: filed up to 45 days late.

Smart money on GOSS

Lean short1 source:
- Funds

Top traders
No tracked positions at the last update
Insiders
No recent insider filings found
Politicians
No recent politician filings found
Funds
- FMR LLC, trimmed -$13.1M, holdings at Mar 31
- State Street, trimmed -$27.4M, holdings at Mar 31
Lean short · thin0 added · 2 trimmed
Quarter-end 13F holdings changes, not live trades. A trim is not a short.
Fin-fluencers
No recent posts found

Each bar is 100% of that source’s money. The notch marks an even split.

Lean is the direction of the latest moves. Descriptive, not advice.

Questions about GOSS filings

Are insiders buying or selling Gossamer Bio Inc (GOSS) stock?

Neither. Gossamer Bio Inc (GOSS) insiders filed no open-market purchases or sales in the 90 days to Oct 30, 2026, according to SEC Form 4 filings.

Which members of Congress have traded GOSS recently?

None. No member of Congress disclosed a GOSS trade with a trade date in the last 180 days, according to House and Senate STOCK Act filings.

How current is this GOSS smart-money data?

Funds

What funds are doing

2 moves · 6 mo

Sells/Trims$40.6M

Sells/Trims (2)

SS
State Street
Q1 2026 13F
$27.4M
trimmed
Signals like this: n=7469, 53% finished lower at D15, median -0.5% vs SPY -0.4%
FM
FMR LLC
Q1 2026 13F
$13.1M
trimmed

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Reported Aug 13, 2026

Earnings came in 18.2% above what analysts expected.

Documents

Quarterly report10-Q Annual report10-K Every filing

Last report

Aug 13, 2026

Period ending

Jun 30, 2026

Earnings per share

-$8.17+18.23% beat

-$9.99 expected

Revenue

$9.2M

SEC filing

EPS: Yahoo Finance

Next report

Estimated report: Nov 4, 2026, in 5 days

Previous reports

Quarter / reported	Earnings per share	Beat or miss	Revenue / income	Revenue vs last year
Jun 30, 2026Reported Aug 13, 2026	-$8.17est. -$9.99	+18.23%beat	$9.2MSEC filing	-19.6%from $11.5M
Mar 31, 2026Reported May 15, 2026	-$16.00est. -$13.64	-17.30%miss	$17.0MSEC filing	+71.5%from $9.9M
Dec 31, 2025Reported Mar 17, 2026	-$16.80est. -$15.65	-7.33%miss	$13.8MYahoo Finance	No year-ago quarter
Sep 30, 2025Reported Nov 5, 2025	-$16.80est. -$15.77	-6.52%miss	$13.3MSEC filing	+40.2%from $9.5M
Jun 30, 2025Reported Aug 5, 2025	-$0.17est. -$0.18	+5.56%beat	$11.5MSEC filing	-88.0%from $95.8M
Mar 31, 2025Reported May 15, 2025	-$0.16est. -$0.18	+11.11%beat	$9.9MSEC filing	No year-ago quarter
Dec 31, 2024Reported Mar 13, 2025	-$0.15est. -$0.17	+10.71%beat	$114.7M · FYSEC filing	No year-ago quarter
Sep 30, 2024Reported Nov 7, 2024	-$0.14est. -$0.14	+0.00%in line	$9.5MSEC filing	No year-ago quarter

Earnings per share comes from Yahoo Finance where available, then Alpha Vantage or the company release. Revenue comes from company releases, SEC filings, Alpha Vantage or Yahoo Finance. A beat or miss needs an analyst estimate on the same basis as the reported figure, so quarters without one show none. Non-USD amounts carry their currency code.

Open: $10.70
52-wk high: $309.60
High: $11.08
52-wk low: $8.29
Low: $10.48
Prev close: $10.69
Mkt cap: $65.4M
ROE: -783.0%
Beta: 2.21
P/S: 1.2x
P/B: 2.7x
Profit margin: -235.0%
Op margin: -282.2%

Fundamentals

Is the business strong?

This company is not yet profitable.

Net margin: -235.0%
Market cap: $65M

Valuation

P/S1.23
P/B2.66

Quality

Operating margin-282.2%
ROE-783.0%
ROA-62.4%

Growth

Beta2.21

Technicals

Price structure

This stock is under pressure.

Trend

Under pressure

35 / 100

RSI 14

62balanced

20D volatility

85%annualized

52-week range

$10.69

$8.29$309.60

20D support

$8.29recent floor

20D resistance

$11.19recent ceiling

Returns

5D +13.0%20D -2.2%60D -24.8%

Price vs moving averages

SMA20 +10.0%SMA50 -5.5%SMA200 -74.6%

Volume pace

0.07xvs prior 20D

Quarter / reported

Earnings per share

Beat or miss

Revenue / income

Revenue vs last year

Jun 30, 2026Aug 13, 2026

-$8.17est. -$9.99

+18.23%

$9.2MSEC filing

-19.6%from $11.5M

Mar 31, 2026May 15, 2026

-$16.00est. -$13.64

-17.30%

$17.0MSEC filing

+71.5%from $9.9M

Dec 31, 2025Mar 17, 2026

-$16.80est. -$15.65

-7.33%

$13.8MYahoo Finance

No year-ago quarter

Sep 30, 2025Nov 5, 2025

-$16.80est. -$15.77

-6.52%

$13.3MSEC filing

+40.2%from $9.5M

Jun 30, 2025Aug 5, 2025

-$0.17est. -$0.18

+5.56%

$11.5MSEC filing

-88.0%from $95.8M

Mar 31, 2025May 15, 2025

-$0.16est. -$0.18

+11.11%

$9.9MSEC filing

No year-ago quarter

Dec 31, 2024Mar 13, 2025

-$0.15est. -$0.17

+10.71%

$114.7M · FYSEC filing

No year-ago quarter

Sep 30, 2024Nov 7, 2024

-$0.14est. -$0.14

+0.00%

$9.5MSEC filing

No year-ago quarter

Gossamer Bio Inc

Smart money at a glance

What do analysts expect?

Questions about GOSS filings

Smart money on GOSS

Questions about GOSS filings

What funds are doing

How top traders are positioned

Unlock everything for $29/month

Earnings came in 18.2% above what analysts expected.

Estimated report: Nov 4, 2026, in 5 days

Previous reports

Is the business strong?

Price structure

Ask it in Claude or ChatGPT.

Gossamer Bio Inc

Smart money at a glance

What do analysts expect?

Questions about GOSS filings

Smart money on GOSS

Questions about GOSS filings

What funds are doing

How top traders are positioned

Unlock everything for $29/month

Earnings came in 18.2% above what analysts expected.

Estimated report: Nov 4, 2026, in 5 days

Previous reports

Is the business strong?

Price structure

Ask it in Claude or ChatGPT.

Gossamer Bio Inc

Overview

Questions about GOSS filings

Smart money

Unlock everything for $29/month

Earnings

Previous reports

Financials

Technicals

Ask it in Claude or ChatGPT.

Gossamer Bio Inc

Overview

Questions about GOSS filings

Smart money

Unlock everything for $29/month

Earnings

Previous reports

Financials

Technicals

Ask it in Claude or ChatGPT.