Get email alerts when BKSY insiders make a move — free, no credit card

BKSY Insider Trading & Form 4 Activity

BlackSky Technology Inc.
Last filing: Oct 22, 2026·2 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$1.8M
3 sells
-$1.8M
net selling
3
insiders
Tracking BKSY insiders takes 3 seconds. Get free alerts →
ACTIVE SELLING CLUSTER

3 insiders sold a combined $1.8M of BKSY on Sep 11, 2026.

O'Toole Brian E, Dubois Henry Edward, Lin Christiana L

Don't miss the next BKSY cluster. Tracenotes detected this one — get the next alert free.

Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
O'Toole Brian E
CEO and President
—
$2.4M
-$2.4M
Dubois Henry Edward
Chief Financial Officer
—
$573K
-$573K
Lin Christiana L
General Counsel & CAO
—
$513K
-$513K
Gordon Susan M.
Insider
—
—
$0
Porteous William D.
Insider
—
—
$0
Tolonen James R
Insider
—
—
$0
Abraham Magid M
Insider
—
—
$0
Harvey Timothy M.
Insider
—
—
$0

Recent transactions

Every Form 4 transaction for BKSY, newest first.

SELL10b5-1
O'Toole Brian E · CEO and President
Tx Oct 20·Filed Oct 22·EDGAR ↗
20,000 sh @ $16.86
$337K
SELL10b5-1
Dubois Henry Edward · Chief Financial Officer
Tx Oct 20·Filed Oct 22·EDGAR ↗
4,000 sh @ $16.85
$67K
SELL10b5-1
Lin Christiana L · General Counsel & CAO
Tx Oct 20·Filed Oct 22·EDGAR ↗
6,000 sh @ $16.86
$101K
AWARD
Gordon Susan M. · Insider
Tx Sep 30·Filed Oct 1·EDGAR ↗
1,055 sh
—
AWARD
Porteous William D. · Insider
Tx Sep 30·Filed Oct 1·EDGAR ↗
1,055 sh
—
AWARD
Tolonen James R · Insider
Tx Sep 30·Filed Oct 1·EDGAR ↗
1,055 sh
—
AWARD
Abraham Magid M · Insider
Tx Sep 30·Filed Oct 1·EDGAR ↗
1,055 sh
—
SELL10b5-1
Lin Christiana L · General Counsel & CAO
Tx Sep 21·Filed Sep 22·EDGAR ↗
6,000 sh @ $23.10
$139K
SELL10b5-1
Dubois Henry Edward · Chief Financial Officer
Tx Sep 21·Filed Sep 22·EDGAR ↗
4,000 sh @ $22.97
$92K
SELL10b5-1
O'Toole Brian E · CEO and President
Tx Sep 21·Filed Sep 22·EDGAR ↗
20,000 sh @ $22.88
$458K
AWARD
Tolonen James R · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
8,005 sh
—
AWARD
Harvey Timothy M. · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
7,278 sh
—
AWARD
Porteous William D. · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
8,733 sh
—
AWARD
Didomenico David · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
7,278 sh
—
AWARD
Gordon Susan M. · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
7,278 sh
—
SELL
O'Toole Brian E · CEO and President
Tx Sep 11·Filed Sep 14·EDGAR ↗
56,280 sh @ $20.95
$1.2M
AWARD
Abraham Magid M · Insider
Tx Sep 11·Filed Sep 14·EDGAR ↗
7,278 sh
—
SELL
Dubois Henry Edward · Chief Financial Officer
Tx Sep 11·Filed Sep 14·EDGAR ↗
15,225 sh @ $20.95
$319K
SELL
Lin Christiana L · General Counsel & CAO
Tx Sep 11·Filed Sep 14·EDGAR ↗
13,052 sh @ $20.95
$273K
SELL10b5-1
O'Toole Brian E · CEO and President
Tx Sep 9·Filed Sep 10·EDGAR ↗
20,000 sh @ $21.83
$437K
SELL10b5-1
Dubois Henry Edward · Chief Financial Officer
Tx Aug 28·Filed Aug 31·EDGAR ↗
4,000 sh @ $23.78
$95K
AWARD
Porteous William D. · Insider
Tx Jun 30·Filed Jun 30·EDGAR ↗
805 sh
—
AWARD
Abraham Magid M · Insider
Tx Jun 30·Filed Jun 30·EDGAR ↗
805 sh
—
AWARD
Tolonen James R · Insider
Tx Jun 30·Filed Jun 30·EDGAR ↗
805 sh
—
AWARD
Gordon Susan M. · Insider
Tx Jun 30·Filed Jun 30·EDGAR ↗
805 sh
—
SELL
Dubois Henry Edward · Chief Financial Officer
Tx Jun 10·Filed Jun 12·EDGAR ↗
14,749 sh @ $34.10
$503K
SELL
Lin Christiana L · General Counsel & CAO
Tx Jun 10·Filed Jun 12·EDGAR ↗
12,001 sh @ $34.10
$409K
SELL
O'Toole Brian E · CEO and President
Tx Jun 10·Filed Jun 12·EDGAR ↗
15,512 sh @ $34.10
$529K

Track every ticker you care about

Free plan includes 3 tickers, daily insider scans, and cluster alerts. No credit card.

Start free (3 tickers)See plans

Join investors tracking SEC filings.

About BKSY insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for BKSY from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

See this for every ticker.

Tracenotes covers the S&P 500 and beyond. Pick any ticker — get the same depth of insider trading data.

AAPLNVDAMSFTTSLA

Free plan available — no credit card. Sign up free →

Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying BKSY always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on BlackSky Technology Inc. (BKSY) when they form.

Where does BKSY insider trading data come from?

Every Form 4 filing for BKSY is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

© 2026 Tracenotes · tracenotes.ai