Bjorn Sibbern

Insider

First SEC filing: Nov. 8, 2016 · Latest: Nov. 8, 2016

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.

Insider at

NDAQ selling Oct. 29, 2021

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 19 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

19 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 6, 2022	NDAQ	A	14,923	—	—	79,809 Direct	+23.00%	Acquired	(price as of 2026-08-21)
April 1, 2022	NDAQ	F	279	$181.92	$50,756	21,505 Direct	-1.28%	Disposed	61.8% (price as of 2026-08-21)
April 1, 2022	NDAQ	A	1,209	—	—	21,784 Direct	+5.88%	Acquired	(price as of 2026-08-21)
Feb. 23, 2022	NDAQ	F	10,119	$168.19	$1,701,915	20,575 Direct	-32.97%	Disposed	75.0% (price as of 2026-08-21)
Feb. 23, 2022	NDAQ	A	18,098	—	—	30,694 Direct	+143.68%	Acquired	(price as of 2026-08-21)
Oct. 29, 2021	NDAQ	S	3,512	$209.31	$735,097	12,596 Direct	-21.80%	Disposed	40.6% (price as of 2026-08-21)
April 1, 2021	NDAQ	A	1,325	—	—	15,919 Direct	+9.08%	Acquired	(price as of 2026-08-21)
Feb. 23, 2021	NDAQ	F	6,252	$140.34	$877,406	14,594 Direct	-29.99%	Disposed	109.7% (price as of 2026-08-21)
Feb. 23, 2021	NDAQ	A	13,151	—	—	20,846 Direct	+170.90%	Acquired	(price as of 2026-08-21)
Feb. 4, 2021	NDAQ	S	3,806	$144.98	$551,794	7,695 Direct	-33.09%	Disposed	103.0% (price as of 2026-08-21)
April 27, 2020	NDAQ	S	2,329	$111.20	$258,985	11,270 Direct	-17.13%	Disposed	164.7% (price as of 2026-08-21)
April 27, 2020	NDAQ	S	683	$111.00	$75,813	13,599 Direct	-4.78%	Disposed	165.2% (price as of 2026-08-21)
April 1, 2020	NDAQ	A	1,951	—	—	14,282 Direct	+15.82%	Acquired	(price as of 2026-08-21)
Feb. 25, 2020	NDAQ	F	3,493	$112.41	$392,648	12,331 Direct	-22.07%	Disposed	161.8% (price as of 2026-08-21)
Feb. 25, 2020	NDAQ	A	8,422	—	—	15,824 Direct	+113.78%	Acquired	(price as of 2026-08-21)
Dec. 31, 2019	NDAQ	F	307	$107.10	$32,880	7,402 Direct	-3.98%	Disposed	174.8% (price as of 2026-08-21)
Jan. 29, 2019	NDAQ	F	822	$85.81	$70,536	7,408 Direct	-9.99%	Disposed	243.0% (price as of 2026-08-21)
Jan. 29, 2019	NDAQ	A	1,779	—	—	8,230 Direct	+27.58%	Acquired	(price as of 2026-08-21)
Dec. 31, 2018	NDAQ	F	626	$81.57	$51,063	6,125 Direct	-9.27%	Disposed	260.8% (price as of 2026-08-21)
April 27, 2018	NDAQ	S	5,640	$88.11	$496,940	6,751 Direct	-45.52%	Disposed	234.0% (price as of 2026-08-21)
April 27, 2018	NDAQ	S	136	$88.13	$11,986	12,391 Direct	-1.09%	Disposed	234.0% (price as of 2026-08-21)
Jan. 3, 2018	NDAQ	F	848	$77.66	$65,856	12,527 Direct	-6.34%	Disposed	279.0% (price as of 2026-08-21)
Jan. 3, 2018	NDAQ	A	2,801	—	—	13,375 Direct	+26.49%	Acquired	(price as of 2026-08-21)
Jan. 2, 2018	NDAQ	F	615	$76.74	$47,195	10,574 Direct	-5.50%	Disposed	283.5% (price as of 2026-08-21)
Aug. 10, 2017	NDAQ	S	3,000	$76.17	$228,510	10,956 Direct	-21.50%	Disposed	286.4% (price as of 2026-08-21)
Jan. 30, 2017	NDAQ	A	7,030	—	—	13,832 Direct	+103.35%	Acquired	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Nov. 8, 2016	NDAQ	Common Stock, par value $0.01 per share	6,666	Direct