Ajit Ramalingam

Insider

First SEC filing: April 1, 2020 · Latest: April 1, 2020

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.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

BIO selling June 6, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 31 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

31 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Sept. 2, 2023	BIO	M	241	—	—	241 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Sept. 2, 2023	BIO	F	84	$394.60	$33,146	403 Direct	-17.25%	Disposed	-7.6% (price as of 2026-08-20)
Sept. 2, 2023	BIO	M	241	—	—	487 Direct	+97.97%	Acquired	(price as of 2026-08-20)
Sept. 1, 2023	BIO	M	169	—	—	338 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Sept. 1, 2023	BIO	M	173	—	—	521 Direct	-24.93%	Disposed	(price as of 2026-08-20)
Sept. 1, 2023	BIO	F	59	$394.60	$23,281	246 Direct	-19.34%	Disposed	-7.6% (price as of 2026-08-20)
Sept. 1, 2023	BIO	M	169	—	—	305 Direct	+124.26%	Acquired	(price as of 2026-08-20)
Sept. 1, 2023	BIO	F	60	$394.60	$23,676	136 Direct	-30.61%	Disposed	-7.6% (price as of 2026-08-20)
Sept. 1, 2023	BIO	M	173	—	—	196 Direct	+752.17%	Acquired	(price as of 2026-08-20)
June 6, 2023	BIO	S	181	$368.28	$66,659	0 Direct	-100.00%	Disposed	-1.0% (price as of 2026-08-20)
June 6, 2023	BIO	S	17	$368.49	$6,264	181 Direct	-8.59%	Disposed	-1.1% (price as of 2026-08-20)
April 29, 2023	BIO	M	277	—	—	554 Direct	-33.33%	Disposed	(price as of 2026-08-20)
April 29, 2023	BIO	F	96	$450.79	$43,276	198 Direct	-32.65%	Disposed	-19.1% (price as of 2026-08-20)
April 29, 2023	BIO	M	277	—	—	294 Direct	+1629.41%	Acquired	(price as of 2026-08-20)
Feb. 10, 2023	BIO	A	644	—	—	644 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 10, 2022	BIO	S	0	$423.61	—	0 Direct	—	Disposed	-13.9% (price as of 2026-08-20)
Nov. 10, 2022	BIO	S	112	$422.28	$47,295	0 Direct	-100.00%	Disposed	-13.7% (price as of 2026-08-20)
Nov. 10, 2022	BIO	S	267	$421.70	$112,594	112 Direct	-70.45%	Disposed	-13.5% (price as of 2026-08-20)
Sept. 2, 2022	BIO	M	241	—	—	482 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Sept. 2, 2022	BIO	F	84	$478.32	$40,179	365 Direct	-18.71%	Disposed	-23.8% (price as of 2026-08-20)
Sept. 2, 2022	BIO	M	241	—	—	449 Direct	+115.87%	Acquired	(price as of 2026-08-20)
Sept. 1, 2022	BIO	M	169	—	—	507 Direct	-25.00%	Disposed	(price as of 2026-08-20)
Sept. 1, 2022	BIO	A	694	—	—	694 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 1, 2022	BIO	F	59	$486.25	$28,689	208 Direct	-22.10%	Disposed	-25.0% (price as of 2026-08-20)
Sept. 1, 2022	BIO	M	169	—	—	267 Direct	+172.45%	Acquired	(price as of 2026-08-20)
Aug. 5, 2022	BIO	S	518	$537.00	$278,166	98 Direct	-84.09%	Disposed	-32.1% (price as of 2026-08-20)
April 29, 2022	BIO	M	277	—	—	831 Direct	-25.00%	Disposed	(price as of 2026-08-20)
April 29, 2022	BIO	F	96	$512.06	$49,158	602 Direct	-13.75%	Disposed	-28.8% (price as of 2026-08-20)
April 29, 2022	BIO	M	277	—	—	698 Direct	+65.80%	Acquired	(price as of 2026-08-20)
Sept. 2, 2021	BIO	M	240	—	—	723 Direct	-24.92%	Disposed	(price as of 2026-08-20)
Sept. 2, 2021	BIO	F	83	$825.77	$68,539	390 Direct	-17.55%	Disposed	-55.8% (price as of 2026-08-20)
Sept. 2, 2021	BIO	M	240	—	—	473 Direct	+103.00%	Acquired	(price as of 2026-08-20)
Sept. 1, 2021	BIO	A	676	—	—	676 Direct	—	Acquired	(price as of 2026-08-20)
April 29, 2021	BIO	M	276	—	—	1,108 Direct	-19.94%	Disposed	(price as of 2026-08-20)
April 29, 2021	BIO	F	96	$640.73	$61,510	222 Direct	-30.19%	Disposed	-43.1% (price as of 2026-08-20)
April 29, 2021	BIO	M	276	—	—	318 Direct	+657.14%	Acquired	(price as of 2026-08-20)
April 29, 2020	BIO	A	1,384	—	—	1,384 Direct	—	Acquired	(price as of 2026-08-20)

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. 2, 2023	BIO	Restricted Stock Units	Bio-Rad A Common Stock (241)	—	—	241	Disposed
Sept. 1, 2023	BIO	Restricted Stock Units	Bio-Rad A Common Stock (169)	—	—	169	Disposed
Sept. 1, 2023	BIO	Restricted Stock Units	Bio-Rad A Common Stock (173)	—	—	173	Disposed
April 29, 2023	BIO	Restricted Stock Units	Bio-Rad A Common Stock (277)	—	—	277	Disposed
Feb. 10, 2023	BIO	Restricted Stock Units	Bio-Rad A Common Stock (644)	—	—	644	Acquired
Sept. 2, 2022	BIO	Restricted Stock Units	Bio-Rad A Common Stock (241)	—	—	241	Disposed
Sept. 1, 2022	BIO	Restricted Stock Units	Bio-Rad A Common Stock (169)	—	—	169	Disposed
Sept. 1, 2022	BIO	Restricted Stock Units	Bio-Rad A Common Stock (694)	—	—	694	Acquired
April 29, 2022	BIO	Restricted Stock Units	Bio-Rad A Common Stock (277)	—	—	277	Disposed
Sept. 2, 2021	BIO	Restricted Stock Units	Bio-Rad A Common Stock (240)	—	—	240	Disposed
Sept. 1, 2021	BIO	Restricted Stock Units	Bio-Rad A Common Stock (676)	—	—	676	Acquired
April 29, 2021	BIO	Restricted Stock Units	Bio-Rad A Common Stock (276)	—	—	276	Disposed
April 29, 2020	BIO	Restricted Stock Units	Bio-Rad A Common Stock (1,384)	—	—	1,384	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
April 1, 2020	BIO	No securities are beneficially owned	0	Direct