Shalabh Chandra

Insider

First SEC filing: Sept. 10, 2019 · Latest: Sept. 10, 2019

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

OSIS selling June 12, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 23 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

23 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 28, 2024	OSIS	A	155	$68.11	$10,557	8,347 Direct	+1.89%	Acquired	222.2% (price as of 2026-08-20)
June 12, 2024	OSIS	S	676	$139.50	$94,302	8,192 Direct	-7.62%	Disposed	57.3% (price as of 2026-08-20)
Dec. 29, 2023	OSIS	A	155	$68.11	$10,557	8,868 Direct	+1.78%	Acquired	222.2% (price as of 2026-08-20)
Sept. 15, 2023	OSIS	S	3,203	$117.82	$377,377	8,713 Direct	-26.88%	Disposed	86.3% (price as of 2026-08-20)
Sept. 5, 2023	OSIS	F	158	$133.85	$21,148	12,606 Direct	-1.24%	Disposed	64.0% (price as of 2026-08-20)
Sept. 5, 2023	OSIS	A	1,078	—	—	13,684 Direct	+8.55%	Acquired	(price as of 2026-08-20)
Sept. 5, 2023	OSIS	F	263	$133.85	$35,203	13,421 Direct	-1.92%	Disposed	64.0% (price as of 2026-08-20)
July 28, 2023	OSIS	A	2,125	$117.63	$249,964	12,764 Direct	+19.97%	Acquired	86.6% (price as of 2026-08-20)
June 30, 2023	OSIS	A	155	$68.11	$10,557	10,639 Direct	+1.48%	Acquired	222.2% (price as of 2026-08-20)
Dec. 30, 2022	OSIS	A	144	$67.59	$9,733	10,484 Direct	+1.39%	Acquired	224.7% (price as of 2026-08-20)
Oct. 23, 2022	OSIS	F	127	$74.39	$9,448	10,340 Direct	-1.21%	Disposed	195.0% (price as of 2026-08-20)
Aug. 24, 2022	OSIS	A	771	—	—	10,655 Direct	+7.80%	Acquired	(price as of 2026-08-20)
Aug. 24, 2022	OSIS	F	188	$89.14	$16,758	10,467 Direct	-1.76%	Disposed	146.2% (price as of 2026-08-20)
July 6, 2022	OSIS	A	2,820	—	—	9,884 Direct	+39.92%	Acquired	(price as of 2026-08-20)
June 30, 2022	OSIS	A	169	$62.53	$10,568	7,064 Direct	+2.45%	Acquired	251.0% (price as of 2026-08-20)
Dec. 31, 2021	OSIS	A	169	$62.53	$10,568	6,895 Direct	+2.51%	Acquired	251.0% (price as of 2026-08-20)
Oct. 25, 2021	OSIS	F	127	$95.05	$12,071	6,726 Direct	-1.85%	Disposed	130.9% (price as of 2026-08-20)
Aug. 24, 2021	OSIS	F	299	$98.33	$29,401	6,853 Direct	-4.18%	Disposed	123.2% (price as of 2026-08-20)
Aug. 24, 2021	OSIS	A	1,226	—	—	7,152 Direct	+20.69%	Acquired	(price as of 2026-08-20)
July 8, 2021	OSIS	A	2,011	—	—	5,926 Direct	+51.37%	Acquired	(price as of 2026-08-20)
June 30, 2021	OSIS	A	169	$62.53	$10,568	3,915 Direct	+4.51%	Acquired	251.0% (price as of 2026-08-20)
Dec. 31, 2020	OSIS	A	169	$62.53	$10,568	3,746 Direct	+4.72%	Acquired	251.0% (price as of 2026-08-20)
Oct. 23, 2020	OSIS	F	127	$80.27	$10,194	3,577 Direct	-3.43%	Disposed	173.4% (price as of 2026-08-20)
July 8, 2020	OSIS	A	2,150	—	—	3,704 Direct	+138.35%	Acquired	(price as of 2026-08-20)
Oct. 23, 2019	OSIS	A	1,554	—	—	1,554 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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Sept. 10, 2019	OSIS	No securities are beneficially owned.	0	Direct