Schaeffer Dave — Insider Trades & Holdings | InsiderBid

Schaeffer Dave

Form 4 filings across 1 company. Net figures count open-market buys and sales only. EDGAR profile ↗

Lifetime net: -$132.3M

Positions by company

Reported holding is the most recent post-transaction share count on a Table I row.

Every company this insider has reported trading in, with the value bought and sold at each and the date they last traded.
Ticker	Company	Bought	Sold	Net	Shares held	Last trade
CCOI	Cogent Communications Holdings, INC.	$0	$132.3M	-$132.3M	1.3M	May 4

Cogent Communications…

-$132.3M

Bought

$0

Sold

$132.3M

Held

1.3M

Filing record

How quickly this filer reports. Section 16 allows two business days from the transaction.

All 23 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Trade history

The 46 most recent Form 4 transactions.

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Ticker	Company	Type	Shares	Price	Value	Δ Own	Filing
May 4	CCOI	Cogent Communications…	GGIFT	1M	—	—	+386.1%	Open the original filing on SEC.gov
May 4	CCOI	Cogent Communications…	GGIFT	1M	—	—	-62.1%	Open the original filing on SEC.gov
May 4	CCOI

CCOIGGIFT—

Cogent Communications…May 4

1M sh · +386.1% own

CCOIGGIFT—

Cogent Communications…May 4

1M sh · -62.1% own

CCOIAGRANT—

Cogent Communications…May 4

1M sh · +164.2% own

CCOIGGIFT—

Cogent Communications…Apr 1

29,333 sh · +12.8% own

CCOIGGIFT—

Cogent Communications…Apr 1

29,333 sh · -4.6% own

CCOIDTOISS—

Cogent Communications…Apr 1

58,667 sh · -8.4% own

CCOIGGIFT—

Cogent Communications…Dec 31, 2025

229,657 sh

CCOIGGIFT—

Cogent Communications…Dec 31, 2025

229,657 sh · -24.8% own

CCOIAGRANT—

Cogent Communications…Dec 31, 2025

229,657 sh · +32.9% own

CCOISSELL$22.5M

Cogent Communications…Aug 8, 2025

818,909 sh @ $27.50 · -54.0% own

CCOISSELL$60M

Cogent Communications…Aug 7, 2025

1.8M sh @ $32.60 · -54.8% own

CCOISSELL$1.2M

Cogent Communications…Jun 16, 2025

25,000 sh @ $47.05 · -0.7% own

CCOISSELL$2.1M

Cogent Communications…Jun 16, 2025

45,000 sh @ $47.14 · -1.3% own

CCOISSELL$473.4K

Cogent Communications…Jun 13, 2025

10,000 sh @ $47.34 · -0.3% own

CCOISSELL$2.1M

Cogent Communications…Jun 13, 2025

45,000 sh @ $47.42 · -1.3% own

CCOISSELL$478.3K

Cogent Communications…Jun 12, 2025

10,000 sh @ $47.83 · -0.3% own

CCOISSELL$2.2M

Cogent Communications…Jun 12, 2025

45,000 sh @ $47.87 · -1.3% own

CCOISSELL$483.5K

Cogent Communications…Jun 11, 2025

10,000 sh @ $48.35 · -0.3% own

CCOISSELL$2.2M

Cogent Communications…Jun 11, 2025

45,000 sh @ $48.55 · -1.3% own

CCOISSELL$729.5K

Cogent Communications…Jun 10, 2025

15,000 sh @ $48.63 · -0.4% own

CCOISSELL$1.9M

Cogent Communications…Jun 10, 2025

40,000 sh @ $48.70 · -1.1% own

CCOISSELL$734.9K

Cogent Communications…Jun 9, 2025

15,000 sh @ $48.99 · -0.4% own

CCOISSELL$1.9M

Cogent Communications…Jun 9, 2025

40,000 sh @ $48.51 · -1.1% own

CCOISSELL$1.4M

Cogent Communications…Jun 6, 2025

30,000 sh @ $47.78 · -0.8% own

CCOISSELL$2.4M

Cogent Communications…Jun 6, 2025

50,000 sh @ $47.78 · -1.3% own

CCOISSELL$1.7M

Cogent Communications…Jun 5, 2025

35,000 sh @ $47.31 · -0.9% own

CCOISSELL$1.9M

Cogent Communications…Jun 5, 2025

40,000 sh @ $47.29 · -1.0% own

CCOISSELL$1.2M

Cogent Communications…Jun 4, 2025

25,000 sh @ $47.76 · -0.6% own

CCOISSELL$2.4M

Cogent Communications…Jun 4, 2025

50,000 sh @ $47.76 · -1.3% own

CCOISSELL$702.9K

Cogent Communications…Jun 3, 2025

15,000 sh @ $46.86 · -0.4% own

CCOISSELL$2.3M

Cogent Communications…Jun 3, 2025

50,000 sh @ $47.00 · -1.3% own

CCOISSELL$692K

Cogent Communications…Jun 2, 2025

15,000 sh @ $46.13 · -0.4% own

CCOISSELL$2.3M

Cogent Communications…Jun 2, 2025

50,000 sh @ $46.38 · -1.2% own

CCOISSELL$1.1M

Cogent Communications…May 30, 2025

25,000 sh @ $45.90 · -0.6% own

CCOISSELL$1.2M

Cogent Communications…May 29, 2025

25,000 sh @ $46.90 · -0.6% own

CCOISSELL$948.2K

Cogent Communications…May 28, 2025

20,000 sh @ $47.41 · -0.5% own

CCOISSELL$973.3K

Cogent Communications…May 27, 2025

20,000 sh @ $48.67 · -0.5% own

CCOISSELL$1.2M

Cogent Communications…May 23, 2025

25,000 sh @ $46.93 · -0.6% own

CCOISSELL$1.2M

Cogent Communications…May 22, 2025

25,000 sh @ $46.27 · -0.6% own

CCOISSELL$1.9M

Cogent Communications…May 21, 2025

40,000 sh @ $46.81 · -0.9% own

CCOISSELL$749.3K

Cogent Communications…May 20, 2025

15,000 sh @ $49.96 · -0.4% own

CCOISSELL$764.9K

Cogent Communications…May 16, 2025

15,000 sh @ $51.00 · -0.4% own

CCOISSELL$2M

Cogent Communications…May 15, 2025

40,000 sh @ $50.38 · -0.9% own

CCOISSELL$1.5M

Cogent Communications…May 14, 2025

30,000 sh @ $50.64 · -0.7% own

CCOISSELL$2.2M

Cogent Communications…May 13, 2025

42,628 sh @ $50.45 · -1.0% own

CCOISSELL$569.8K

Cogent Communications…May 12, 2025

11,372 sh @ $50.10 · -0.3% own