CLBK insider trading

SEC Form 4 transactions reported by Columbia Financial, Inc. insiders, officers, directors, and 10%+ beneficial owners. Sourced from EDGAR.

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Cross-role insider cluster: 9 officers plus 10 directors have placed 31 open-market purchases for CLBK in the last 90 days. Cross-role accumulation is the rarest variant of the cluster signal in academic insider studies.

Cross-role insider clusterFirst officer buy in 180+ daysBuys: 0 → 31

Why this matters

When insiders from different roles buy independently within a tight window, the pattern is far less likely to reflect coordinated noise (e.g. a single Rule 10b5-1 plan). Cross-role accumulation typically reflects shared conviction about something not yet priced in.

Insider buys, 90d

$4.8M · 16 buyers

was 0 prior 90d

Insider sells, 90d

$0 · 0 sellers

30s

SEC → here

Live from EDGAR

Recent CLBK insider transactions

The 20 most recent non-derivative Form 4 transactions reported by Columbia Financial, Inc. insiders. Buys are highlighted; the transaction code column matches SEC Form 4 codes (P = open-market purchase, S = sale, A = grant, M = option exercise, F = tax withholding).

Date	Code	Insider	Role	Shares	Price	Value
2026-09-04	A	Klimowich John	SEVP & Chief Risk Officer	59	$12	$685
2026-09-04	A	Kemly Thomas J.	President & CEO, Director	159	$12	$2K
2026-09-04	A	Holland Noel R.	Director	15	$12	$170
2026-09-03	G	Holland Noel R.	Director	20	n/a
2026-09-03	P	Holland Noel R.	Director	20	$12	$234
2026-08-26	A	Prabhu Manesh Balachandran	EVP & CIO	10	$12	$112
2026-08-26	A	Schlesinger Allyson Katz	SEVP&Head of Consumer Banking	44	$12	$511
2026-08-26	A	Schlesinger Allyson Katz	SEVP&Head of Consumer Banking	128	$12	$1K
2026-08-26	A	Sorrentini Lucy	Director	73	$12	$845
2026-08-26	A	Lewis Oliver Edward Jr	SEVP & Head Commercial Banking	6	$12	$70
2026-08-26	A	Lewis Oliver Edward Jr	SEVP & Head Commercial Banking	46	$12	$540
2026-08-26	A	Holland Noel R.	Director	128	$12	$1K
2026-08-26	A	Kemly Thomas J.	President & CEO, Director	392	$12	$5K
2026-08-26	A	Kemly Thomas J.	President & CEO, Director	661	$12	$8K
2026-08-26	A	Klimowich John	SEVP & Chief Risk Officer	39	$12	$453
2026-08-26	A	Klimowich John	SEVP & Chief Risk Officer	88	$12	$1K
2026-08-26	A	Randall Elizabeth E.	Director	212	$12	$2K
2026-08-26	A	Gibney Dennis E.	1st Sr. EVP, CBO, Director	18	$12	$215
2026-08-21	A	Klimowich John	SEVP & Chief Risk Officer	58	$12	$685
2026-08-21	A	Kemly Thomas J.	President & CEO, Director	158	$12	$2K

Why CLBK filings on EdgarKit beat the alternatives

Real-time, not batched. Yahoo Finance and most aggregators batch the SEC daily index. EdgarKit polls EDGAR every 30 seconds, so new CLBK filings appear here within a minute of SEC acceptance.
Developer-ready JSON. Whalewisdom and OpenInsider give you HTML tables you can read but not parse cleanly. Every transaction shown above is also available as structured JSON via the API.
Full transaction codes. Yahoo collapses Form 4 lines into 'Buy' / 'Sell'. We keep the raw transaction code (P, S, A, M, F, etc.) so you can filter compensation noise out of trading signal.
Footnote text preserved. Rule 10b5-1 plan references, indirect ownership disclosures, and gift transfers are all retained in the API response, not stripped.
Free tier covers it. 1,000 API calls/month, no credit card. Most ticker-specific workflows fit comfortably in free.

What insider trading data covers for CLBK

Columbia Financial, Inc. (CIK 1723596) reports Section 16 insider transactions on Form 4 within two business days. Each filing carries the transaction date, transaction code (P for open-market purchase, S for sale, M for option exercise, F for tax withholding), shares, price, and post-transaction holdings. Optional footnotes disclose Rule 10b5-1 plan references and indirect ownership relationships.

How to interpret CLBK insider activity

Treat each filing line through three filters: the transaction code, the role of the filer (officer carries more signal than director), and the dollar value relative to the company's market cap. Open-market purchases (P) by C-suite officers carry the strongest bullish signal. Sales (S) referencing a Rule 10b5-1 plan in the footnotes are pre-arranged and should be discounted. See how to read a Form 4 for the full walkthrough.

Get CLBK insider data via API

Pull recent CLBK Form 4 filings, filtered to open-market purchases above $100k:

curl "https://api.edgarkit.com/v1/filings?ticker=CLBK&form_type=4&transaction_code=P&min_value=100000&limit=20" \
  -H "Authorization: Bearer YOUR_API_KEY"

Subscribe via webhook to receive every new CLBK Form 4 in real time:

curl -X POST "https://api.edgarkit.com/v1/webhooks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://your-server.com/edgarkit-events",
    "filters": {"form_types": ["4"], "tickers": ["CLBK"]}
  }'

Cluster buying detection for CLBK

The strongest insider signal at the issuer level is cluster buying: three or more distinct insiders placing open-market purchases within a 7-14 day window. For the complete pattern detector, see how to detect insider cluster buying.