John Dennis Mcmahon

Insider

First SEC filing: Sept. 15, 2020 · Latest: March 11, 2022

On this page

Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 48 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

48 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 25, 2024	MDB	A	129	—	—	14,143 Direct	+0.92%	Acquired	(price as of 2026-08-21)
June 24, 2024	MDB	S	10,000	$228.00	$2,280,000	20,020 Indirect	-33.31%	Disposed	83.6% (price as of 2026-08-21)
June 27, 2023	MDB	A	598	—	—	13,905 Direct	+4.49%	Acquired	(price as of 2026-08-21)
June 27, 2023	MDB	A	109	—	—	14,014 Direct	+0.78%	Acquired	(price as of 2026-08-21)
June 28, 2022	MDB	A	787	—	—	13,163 Direct	+6.36%	Acquired	(price as of 2026-08-21)
June 28, 2022	MDB	A	144	—	—	13,307 Direct	+1.09%	Acquired	(price as of 2026-08-21)
Sept. 3, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	13,376 Direct	+8.08%	Acquired	5745.1% (price as of 2026-08-21)
Sept. 3, 2021	MDB	S 10b5-1	1,000	$463.28	$463,280	12,376 Direct	-7.48%	Disposed	-9.7% (price as of 2026-08-21)
Sept. 3, 2021	MDB	M 10b5-1	1,000	—	—	8,000 Direct	-11.11%	Disposed	(price as of 2026-08-21)
Aug. 25, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	13,376 Direct	+8.08%	Acquired	5745.1% (price as of 2026-08-21)
Aug. 25, 2021	MDB	S 10b5-1	1,000	$390.00	$390,000	12,376 Direct	-7.48%	Disposed	7.3% (price as of 2026-08-21)
Aug. 25, 2021	MDB	M 10b5-1	1,000	—	—	9,000 Direct	-10.00%	Disposed	(price as of 2026-08-21)
Aug. 23, 2021	MDB	M 10b5-1	3,000	$7.16	$21,480	15,376 Direct	+24.24%	Acquired	5745.1% (price as of 2026-08-21)
Aug. 23, 2021	MDB	S 10b5-1	3,000	$369.83	$1,109,490	12,376 Direct	-19.51%	Disposed	13.2% (price as of 2026-08-21)
Aug. 23, 2021	MDB	M 10b5-1	3,000	—	—	10,000 Direct	-23.08%	Disposed	(price as of 2026-08-21)
July 23, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	13,376 Direct	+8.08%	Acquired	5745.1% (price as of 2026-08-21)
July 23, 2021	MDB	S 10b5-1	1,000	$360.00	$360,000	12,376 Direct	-7.48%	Disposed	16.3% (price as of 2026-08-21)
July 23, 2021	MDB	M 10b5-1	1,000	—	—	13,000 Direct	-7.14%	Disposed	(price as of 2026-08-21)
July 22, 2021	MDB	M 10b5-1	2,000	$7.16	$14,320	14,376 Direct	+16.16%	Acquired	5745.1% (price as of 2026-08-21)
July 22, 2021	MDB	S 10b5-1	2,000	$351.59	$703,180	12,376 Direct	-13.91%	Disposed	19.0% (price as of 2026-08-21)
July 22, 2021	MDB	M 10b5-1	2,000	—	—	14,000 Direct	-12.50%	Disposed	(price as of 2026-08-21)
June 29, 2021	MDB	A	629	—	—	12,270 Direct	+5.40%	Acquired	(price as of 2026-08-21)
June 29, 2021	MDB	A	106	$309.81	$32,840	12,376 Direct	+0.86%	Acquired	35.1% (price as of 2026-08-21)
June 24, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
June 24, 2021	MDB	S 10b5-1	1,000	$390.00	$390,000	11,641 Direct	-7.91%	Disposed	7.3% (price as of 2026-08-21)
June 24, 2021	MDB	M 10b5-1	1,000	—	—	16,000 Direct	-5.88%	Disposed	(price as of 2026-08-21)
June 22, 2021	MDB	M 10b5-1	3,000	$7.16	$21,480	14,641 Direct	+25.77%	Acquired	5745.1% (price as of 2026-08-21)
June 22, 2021	MDB	S 10b5-1	3,000	$377.40	$1,132,200	11,641 Direct	-20.49%	Disposed	10.9% (price as of 2026-08-21)
June 22, 2021	MDB	M 10b5-1	3,000	—	—	17,000 Direct	-15.00%	Disposed	(price as of 2026-08-21)
June 16, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
June 16, 2021	MDB	S 10b5-1	1,000	$360.00	$360,000	11,641 Direct	-7.91%	Disposed	16.3% (price as of 2026-08-21)
June 16, 2021	MDB	M 10b5-1	1,000	—	—	20,000 Direct	-4.76%	Disposed	(price as of 2026-08-21)
June 9, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
June 9, 2021	MDB	S 10b5-1	1,000	$330.00	$330,000	11,641 Direct	-7.91%	Disposed	26.8% (price as of 2026-08-21)
June 9, 2021	MDB	M 10b5-1	1,000	—	—	21,000 Direct	-4.55%	Disposed	(price as of 2026-08-21)
June 4, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
June 4, 2021	MDB	S 10b5-1	1,000	$300.00	$300,000	11,641 Direct	-7.91%	Disposed	39.5% (price as of 2026-08-21)
June 4, 2021	MDB	M 10b5-1	1,000	—	—	22,000 Direct	-4.35%	Disposed	(price as of 2026-08-21)
April 22, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
April 22, 2021	MDB	S 10b5-1	1,000	$300.79	$300,790	11,641 Direct	-7.91%	Disposed	39.1% (price as of 2026-08-21)
April 22, 2021	MDB	M 10b5-1	1,000	—	—	23,000 Direct	-4.17%	Disposed	(price as of 2026-08-21)
March 22, 2021	MDB	M 10b5-1	1,000	$7.16	$7,160	12,641 Direct	+8.59%	Acquired	5745.1% (price as of 2026-08-21)
March 22, 2021	MDB	S 10b5-1	1,000	$303.85	$303,850	11,641 Direct	-7.91%	Disposed	37.7% (price as of 2026-08-21)
March 22, 2021	MDB	M 10b5-1	1,000	—	—	24,000 Direct	-4.00%	Disposed	(price as of 2026-08-21)
Dec. 11, 2020	MDB	M	20,000	$7.16	$143,200	31,641 Direct	+171.81%	Acquired	5745.1% (price as of 2026-08-21)
Dec. 11, 2020	MDB	S	15,718	$335.38	$5,271,503	15,923 Direct	-49.68%	Disposed	24.8% (price as of 2026-08-21)
Dec. 11, 2020	MDB	S	4,182	$336.72	$1,408,163	11,741 Direct	-26.26%	Disposed	24.3% (price as of 2026-08-21)
Dec. 11, 2020	MDB	S	100	$337.79	$33,779	11,641 Direct	-0.85%	Disposed	23.9% (price as of 2026-08-21)
Dec. 11, 2020	MDB	M	20,000	—	—	25,000 Direct	-44.44%	Disposed	(price as of 2026-08-21)
July 10, 2020	MDB	A	149	$202.02	$30,101	40,770 Direct	+0.37%	Acquired	107.2% (price as of 2026-08-21)
July 10, 2020	MDB	A	891	—	—	41,661 Direct	+2.19%	Acquired	(price as of 2026-08-21)
June 24, 2020	MDB	M	5,000	$7.16	$35,800	45,621 Direct	+12.31%	Acquired	5745.1% (price as of 2026-08-21)
June 24, 2020	MDB	S	5,000	$217.10	$1,085,500	40,621 Direct	-10.96%	Disposed	92.8% (price as of 2026-08-21)
June 24, 2020	MDB	M	5,000	—	—	45,000 Direct	-10.00%	Disposed	(price as of 2026-08-21)
June 11, 2020	MDB	J	10,750	—	—	40,621 Direct	+35.99%	Acquired	(price as of 2026-08-21)
June 11, 2020	MDB	J	10,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 11, 2020	MDB	J	50,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 11, 2020	MDB	J	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-21)
July 10, 2019	MDB	A	192	$156.11	$29,973	28,814 Direct	+0.67%	Acquired	168.1% (price as of 2026-08-21)
July 10, 2019	MDB	A	1,057	—	—	29,871 Direct	+3.67%	Acquired	(price as of 2026-08-21)
June 10, 2019	MDB	S	18,700	$172.15	$3,219,205	29,922 Direct	-38.46%	Disposed	143.1% (price as of 2026-08-21)
June 10, 2019	MDB	S	1,300	$173.12	$225,056	28,622 Direct	-4.34%	Disposed	141.7% (price as of 2026-08-21)
July 12, 2018	MDB	A	489	$52.66	$25,751	45,489 Direct	+1.09%	Acquired	694.7% (price as of 2026-08-21)
July 12, 2018	MDB	A	3,133	—	—	48,622 Direct	+6.89%	Acquired	(price as of 2026-08-21)
June 6, 2018	MDB	M	25,000	—	—	45,000 Direct	+125.00%	Acquired	(price as of 2026-08-21)
June 6, 2018	MDB	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 9, 2018	MDB	A	20,000	—	—	20,000 Direct	—	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.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Sept. 3, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
Aug. 25, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
Aug. 23, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (3,000)	$7.16	Oct. 5, 2026	3,000	Disposed
July 23, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
July 22, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (2,000)	$7.16	Oct. 5, 2026	2,000	Disposed
June 24, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
June 22, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (3,000)	$7.16	Oct. 5, 2026	3,000	Disposed
June 16, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
June 9, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
June 4, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
April 22, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
March 22, 2021	MDB	Stock Option (Right to Buy)	Class A Common Stock (1,000)	$7.16	Oct. 5, 2026	1,000	Disposed
Dec. 11, 2020	MDB	Stock Option (Right to Buy)	Class A Common Stock (20,000)	$7.16	Oct. 5, 2026	20,000	Disposed
June 24, 2020	MDB	Stock Option (Right to Buy)	Class A Common Stock (5,000)	$7.16	Oct. 5, 2026	5,000	Disposed
June 11, 2020	MDB	Class B Common Stock	Class A Common Stock (10,750)	—	—	10,750	Disposed
June 11, 2020	MDB	Stock Option (Right to Buy)	Class B Common Stock (50,000)	$7.16	Oct. 5, 2026	50,000	Disposed
June 11, 2020	MDB	Stock Option (Right to Buy)	Class A Common Stock (50,000)	$7.16	Oct. 5, 2026	50,000	Acquired
June 6, 2018	MDB	Restricted Stock Unit	Class A Common Stock (25,000)	—	—	25,000	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 13 holdings

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

Date	Ticker	Security	Shares	Ownership
Sept. 15, 2020	SNOW	Series A Preferred Stock→ Class B Common Stock [F2,F3] (71,921)	71,921	Direct
Sept. 15, 2020	SNOW	Series B Preferred Stock→ Class B Common Stock [F2,F3] (25,825)	25,825	Direct
Sept. 15, 2020	SNOW	Series C Preferred Stock→ Class B Common Stock [F2,F3] (53,442)	53,442	Direct
Sept. 15, 2020	SNOW	Series A Preferred Stock→ Class B Common Stock [F2,F3] (71,921)	71,921	Indirect
Sept. 15, 2020	SNOW	Series B Preferred Stock→ Class B Common Stock [F2,F3] (25,825)	25,825	Indirect
Sept. 15, 2020	SNOW	Series C Preferred Stock→ Class B Common Stock [F2,F3] (53,442)	53,442	Indirect
Sept. 15, 2020	SNOW	Series D Preferred Stock→ Class B Common Stock [F2,F3] (45,718)	45,718	Indirect
Sept. 15, 2020	SNOW	Stock Option (Right to Buy)→ Class B Common Stock [F2,F3] (489,016)	489,016	Direct
Sept. 15, 2020	SNOW	Stock Option (Right to Buy)→ Class B Common Stock [F2,F3] (400,000)	400,000	Direct
Oct. 18, 2017	MDB	Class A Common Stock	0	Direct
Oct. 18, 2017	MDB	Class B Common Stock→ Class A Common Stock (10,750)	10,750	Direct
Oct. 18, 2017	MDB	Stock Option (Right to Buy)→ Class B Common Stock (50,000)	50,000	Direct
Oct. 18, 2017	MDB	Restricted Stock Unit [F3]→ Class A Common Stock	—	Direct