Russell K Grissett

Insider

First SEC filing: Nov. 4, 2021 · Latest: Nov. 4, 2021

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

SON selling Feb. 28, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 71 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

71 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 10, 2025	SON	A	73	$47.27	$3,451	534 Direct	+15.84%	Acquired	24.9% (price as of 2026-08-21)
Feb. 21, 2025	SON	A	504	—	—	1,110 Direct	+83.17%	Acquired	(price as of 2026-08-21)
Feb. 21, 2025	SON	A	6,124	$48.85	$299,157	19,822 Direct	+44.71%	Acquired	20.9% (price as of 2026-08-21)
Feb. 21, 2025	SON	F	1,758	$48.85	$85,878	18,064 Direct	-8.87%	Disposed	20.9% (price as of 2026-08-21)
Feb. 20, 2025	SON	M	1,133	—	—	14,024 Direct	+8.79%	Acquired	(price as of 2026-08-21)
Feb. 20, 2025	SON	F	326	$46.24	$15,074	13,698 Direct	-2.32%	Disposed	27.7% (price as of 2026-08-21)
Feb. 20, 2025	SON	M	1,133	$46.24	$52,390	2,302 Direct	-32.98%	Disposed	27.7% (price as of 2026-08-21)
Feb. 13, 2025	SON	M	697	—	—	13,128 Direct	+5.61%	Acquired	(price as of 2026-08-21)
Feb. 13, 2025	SON	F	237	$48.20	$11,423	12,891 Direct	-1.81%	Disposed	22.5% (price as of 2026-08-21)
Feb. 13, 2025	SON	M	697	$48.20	$33,595	719 Direct	-49.22%	Disposed	22.5% (price as of 2026-08-21)
Feb. 10, 2025	SON	M	672	—	—	12,660 Direct	+5.61%	Acquired	(price as of 2026-08-21)
Feb. 10, 2025	SON	F	229	$46.93	$10,747	12,431 Direct	-1.81%	Disposed	25.8% (price as of 2026-08-21)
Feb. 10, 2025	SON	M	672	$46.93	$31,537	0 Direct	-100.00%	Disposed	25.8% (price as of 2026-08-21)
Dec. 10, 2024	SON	A	62	$51.46	$3,191	461 Direct	+15.54%	Acquired	14.7% (price as of 2026-08-21)
Nov. 1, 2024	SON	F	7	$51.14	$358	399 Direct	-1.72%	Disposed	15.5% (price as of 2026-08-21)
Nov. 1, 2024	SON	F	53	$51.14	$2,710	1,657 Direct	-3.10%	Disposed	15.5% (price as of 2026-08-21)
Sept. 10, 2024	SON	A	58	$54.24	$3,146	406 Direct	+16.67%	Acquired	8.9% (price as of 2026-08-21)
June 10, 2024	SON	A	53	$59.16	$3,135	347 Direct	+18.03%	Acquired	-0.2% (price as of 2026-08-21)
March 8, 2024	SON	A	53	$57.55	$3,050	294 Direct	+21.99%	Acquired	2.6% (price as of 2026-08-21)
Feb. 28, 2024	SON	S	2,039	$56.06	$114,306	11,988 Direct	-14.54%	Disposed	5.3% (price as of 2026-08-21)
Feb. 20, 2024	SON	A	4,022	$55.87	$224,709	15,291 Direct	+35.69%	Acquired	5.7% (price as of 2026-08-21)
Feb. 20, 2024	SON	F	1,264	$55.87	$70,620	14,027 Direct	-8.27%	Disposed	5.7% (price as of 2026-08-21)
Feb. 20, 2024	SON	A	3,435	—	—	3,435 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 20, 2024	SON	A	212	—	—	606 Direct	+53.81%	Acquired	(price as of 2026-08-21)
Feb. 13, 2024	SON	M	696	—	—	11,508 Direct	+6.44%	Acquired	(price as of 2026-08-21)
Feb. 13, 2024	SON	F	239	$55.64	$13,298	11,269 Direct	-2.08%	Disposed	6.1% (price as of 2026-08-21)
Feb. 13, 2024	SON	M	696	—	—	1,416 Direct	-32.95%	Disposed	(price as of 2026-08-21)
Feb. 10, 2024	SON	M	663	—	—	11,040 Direct	+6.39%	Acquired	(price as of 2026-08-21)
Feb. 10, 2024	SON	F	228	$56.95	$12,985	10,812 Direct	-2.07%	Disposed	3.7% (price as of 2026-08-21)
Feb. 10, 2024	SON	M	663	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 9, 2024	SON	M	652	—	—	10,601 Direct	+6.55%	Acquired	(price as of 2026-08-21)
Feb. 9, 2024	SON	F	224	$56.95	$12,757	10,377 Direct	-2.11%	Disposed	3.7% (price as of 2026-08-21)
Feb. 9, 2024	SON	M	652	—	—	672 Direct	-49.24%	Disposed	(price as of 2026-08-21)
Dec. 8, 2023	SON	A	54	$54.49	$2,942	241 Direct	+28.88%	Acquired	8.4% (price as of 2026-08-21)
Nov. 1, 2023	SON	A	1,710	—	—	1,710 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 8, 2023	SON	A	37	$54.86	$2,030	188 Direct	+24.50%	Acquired	7.6% (price as of 2026-08-21)
June 9, 2023	SON	A	32	$62.94	$2,014	151 Direct	+26.89%	Acquired	-6.2% (price as of 2026-08-21)
March 10, 2023	SON	A	34	$56.35	$1,916	119 Direct	+40.00%	Acquired	4.8% (price as of 2026-08-21)
Feb. 17, 2023	SON	A	5,154	$60.71	$312,899	11,454 Direct	+81.81%	Acquired	-2.7% (price as of 2026-08-21)
Feb. 17, 2023	SON	F	1,505	$60.71	$91,369	9,949 Direct	-13.14%	Disposed	-2.7% (price as of 2026-08-21)
Feb. 13, 2023	SON	A	2,112	—	—	2,112 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 13, 2023	SON	A	331	—	—	394 Direct	+525.40%	Acquired	(price as of 2026-08-21)
Feb. 12, 2023	SON	M	419	—	—	6,445 Direct	+6.95%	Acquired	(price as of 2026-08-21)
Feb. 12, 2023	SON	F	145	$59.53	$8,632	6,300 Direct	-2.25%	Disposed	-0.8% (price as of 2026-08-21)
Feb. 12, 2023	SON	M	419	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 10, 2023	SON	M	643	—	—	6,248 Direct	+11.47%	Acquired	(price as of 2026-08-21)
Feb. 10, 2023	SON	F	222	$59.53	$13,216	6,026 Direct	-3.55%	Disposed	-0.8% (price as of 2026-08-21)
Feb. 10, 2023	SON	M	643	—	—	663 Direct	-49.23%	Disposed	(price as of 2026-08-21)
Feb. 9, 2023	SON	M	652	—	—	5,830 Direct	+12.59%	Acquired	(price as of 2026-08-21)
Feb. 9, 2023	SON	F	225	$60.18	$13,540	5,605 Direct	-3.86%	Disposed	-1.9% (price as of 2026-08-21)
Feb. 9, 2023	SON	M	652	—	—	1,324 Direct	-33.00%	Disposed	(price as of 2026-08-21)
Dec. 9, 2022	SON	A	29	$60.13	$1,744	85 Direct	+51.79%	Acquired	-1.8% (price as of 2026-08-21)
Nov. 1, 2022	SON	A	1,710	—	—	1,710 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 9, 2022	SON	A	14	$64.71	$906	57 Direct	+32.56%	Acquired	-8.8% (price as of 2026-08-21)
June 10, 2022	SON	A	16	$56.91	$911	43 Direct	+59.26%	Acquired	3.8% (price as of 2026-08-21)
March 10, 2022	SON	A	14	$55.49	$777	27 Direct	+107.69%	Acquired	6.4% (price as of 2026-08-21)
Feb. 18, 2022	SON	A	1,479	$57.89	$85,619	5,614 Direct	+35.77%	Acquired	2.0% (price as of 2026-08-21)
Feb. 18, 2022	SON	F	436	$57.89	$25,240	5,178 Direct	-7.77%	Disposed	2.0% (price as of 2026-08-21)
Feb. 13, 2022	SON	M	296	—	—	4,226 Direct	+7.53%	Acquired	(price as of 2026-08-21)
Feb. 13, 2022	SON	F	103	$56.06	$5,774	4,123 Direct	-2.44%	Disposed	5.3% (price as of 2026-08-21)
Feb. 13, 2022	SON	M	296	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 12, 2022	SON	M	407	—	—	4,072 Direct	+11.11%	Acquired	(price as of 2026-08-21)
Feb. 12, 2022	SON	F	142	$56.06	$7,961	3,930 Direct	-3.49%	Disposed	5.3% (price as of 2026-08-21)
Feb. 12, 2022	SON	M	407	—	—	419 Direct	-49.27%	Disposed	(price as of 2026-08-21)
Feb. 10, 2022	SON	F	224	$55.73	$12,484	3,677 Direct	-5.74%	Disposed	5.9% (price as of 2026-08-21)
Feb. 10, 2022	SON	M	643	—	—	3,901 Direct	+19.74%	Acquired	(price as of 2026-08-21)
Feb. 10, 2022	SON	F	236	$55.73	$13,152	3,665 Direct	-6.05%	Disposed	5.9% (price as of 2026-08-21)
Feb. 10, 2022	SON	M	643	—	—	1,306 Direct	-32.99%	Disposed	(price as of 2026-08-21)
Feb. 9, 2022	SON	A	63	—	—	63 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 9, 2022	SON	A	1,976	—	—	1,976 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 10, 2021	SON	A	13	$59.89	$779	13 Direct	—	Acquired	-1.4% (price as of 2026-08-21)
Nov. 1, 2021	SON	A	1,710	—	—	1,710 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
March 10, 2025	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (73)	—	—	73	Acquired
Feb. 21, 2025	SON	Restricted Stock Units II	Common Stock (504)	—	—	504	Acquired
Feb. 20, 2025	SON	Restricted Stock Units	Common Stock (1,133)	—	—	1,133	Disposed
Feb. 13, 2025	SON	Restricted Stock Units	Common Stock (697)	—	—	697	Disposed
Feb. 10, 2025	SON	Restricted Stock Units	Common Stock (672)	$0.00	Feb. 28, 2025	672	Disposed
Dec. 10, 2024	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (62)	—	—	62	Acquired
Nov. 1, 2024	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (7)	—	—	7	Disposed
Nov. 1, 2024	SON	Restricted Stock Units	Common Stock (53)	—	Nov. 1, 2035	53	Disposed
Sept. 10, 2024	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (58)	—	—	58	Acquired
June 10, 2024	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (53)	—	—	53	Acquired
March 8, 2024	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (53)	—	—	53	Acquired
Feb. 20, 2024	SON	Restricted Stock Units	Common Stock (3,435)	—	—	3,435	Acquired
Feb. 20, 2024	SON	Restricted Stock Units II	Common Stock (212)	—	—	212	Acquired
Feb. 13, 2024	SON	Restricted Stock Units	Common Stock (696)	$0.00	—	696	Disposed
Feb. 10, 2024	SON	Restricted Stock Units	Common Stock (663)	$0.00	Feb. 10, 2035	663	Disposed
Feb. 9, 2024	SON	Restricted Stock Units	Common Stock (652)	$0.00	Feb. 28, 2025	652	Disposed
Dec. 8, 2023	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (54)	—	—	54	Acquired
Nov. 1, 2023	SON	Restricted Stock Units	Common Stock (1,710)	—	Nov. 1, 2036	1,710	Acquired
Sept. 8, 2023	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (37)	—	—	37	Acquired
June 9, 2023	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (32)	—	—	32	Acquired
March 10, 2023	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (34)	—	—	34	Acquired
Feb. 13, 2023	SON	Restricted Stock Units	Common Stock (2,112)	—	—	2,112	Acquired
Feb. 13, 2023	SON	Restricted Stock Units II	Common Stock (331)	—	—	331	Acquired
Feb. 12, 2023	SON	Restricted Stock Units	Common Stock (419)	$0.00	Feb. 12, 2035	419	Disposed
Feb. 10, 2023	SON	Restricted Stock Units	Common Stock (643)	$0.00	Feb. 10, 2035	643	Disposed
Feb. 9, 2023	SON	Restricted Stock Units	Common Stock (652)	$0.00	Feb. 28, 2025	652	Disposed
Dec. 9, 2022	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (29)	—	—	29	Acquired
Nov. 1, 2022	SON	Restricted Stock Units	Common Stock (1,710)	—	Nov. 1, 2035	1,710	Acquired
Sept. 9, 2022	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (14)	—	—	14	Acquired
June 10, 2022	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (16)	—	—	16	Acquired
March 10, 2022	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (14)	—	—	14	Acquired
Feb. 13, 2022	SON	Restricted Stock Units	Common Stock (296)	$0.00	Feb. 13, 2035	296	Disposed
Feb. 12, 2022	SON	Restricted Stock Units	Common Stock (407)	$0.00	Feb. 12, 2035	407	Disposed
Feb. 10, 2022	SON	Restricted Stock Units	Common Stock (643)	$0.00	Feb. 10, 2035	643	Disposed
Feb. 9, 2022	SON	Restricted Stock Units II	Common Stock (63)	—	—	63	Acquired
Feb. 9, 2022	SON	Restricted Stock Units	Common Stock (1,976)	—	Feb. 28, 2025	1,976	Acquired
Dec. 10, 2021	SON	Dividend Equivalents on Restricted Stock Units	Common Stock (13)	—	—	13	Acquired
Nov. 1, 2021	SON	Restricted Stock Units	Common Stock (1,710)	—	Nov. 1, 2035	1,710	Acquired

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

Initial ownership (Form 3) 7 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 4, 2021	SON	Common Stock	3,258	Direct
Nov. 4, 2021	SON	Common Stock	909	Indirect
Nov. 4, 2021	SON	Restricted Stock Units→ Common Stock (1,949)	1,949	Direct
Nov. 4, 2021	SON	Restricted Stock Units→ Common Stock (826)	826	Direct
Nov. 4, 2021	SON	Restricted Stock Units→ Common Stock (296)	296	Direct
Nov. 4, 2021	SON	Stock Appreciation Right→ Common Stock (5,726)	5,726	Direct
Nov. 4, 2021	SON	Stock Appreciation Right→ Common Stock (6,025)	6,025	Direct