Frederik B Prinzen

Insider

First SEC filing: May 8, 2025 · Latest: May 8, 2025

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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

SLGN selling May 6, 2025

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
May 6, 2025	SLGN	S	2,378	$54.05	$128,531	1,380 Direct	-63.28%	Disposed	-23.8% (price as of 2026-08-21)
March 1, 2025	SLGN	F	762	$54.00	$41,148	3,758 Direct	-16.86%	Disposed	-23.8% (price as of 2026-08-21)
May 13, 2024	SLGN	S	4,093	$47.84	$195,809	4,520 Direct	-47.52%	Disposed	-14.0% (price as of 2026-08-21)
March 4, 2024	SLGN	S	4,684	$43.89	$205,581	8,613 Direct	-35.23%	Disposed	-6.2% (price as of 2026-08-21)
March 1, 2024	SLGN	F	1,447	$43.90	$63,523	13,297 Direct	-9.81%	Disposed	-6.2% (price as of 2026-08-21)
May 30, 2023	SLGN	A	1,920	—	—	14,744 Direct	+14.97%	Acquired	(price as of 2026-08-21)
March 23, 2023	SLGN	J	1,920	—	—	12,824 Direct	-13.02%	Disposed	(price as of 2026-08-21)
March 1, 2023	SLGN	A	1,920	—	—	14,744 Direct	+14.97%	Acquired	(price as of 2026-08-21)
March 1, 2023	SLGN	F	1,516	$53.38	$80,924	12,824 Direct	-10.57%	Disposed	-22.9% (price as of 2026-08-21)
Feb. 22, 2023	SLGN	A	2,400	—	—	14,340 Direct	+20.10%	Acquired	(price as of 2026-08-21)
May 3, 2022	SLGN	S	4,574	$44.96	$205,647	11,940 Direct	-27.70%	Disposed	-8.5% (price as of 2026-08-21)
March 1, 2022	SLGN	F	2,066	$41.45	$85,636	16,514 Direct	-11.12%	Disposed	-0.7% (price as of 2026-08-21)
May 7, 2021	SLGN	S	4,752	$43.14	$205,001	18,580 Direct	-20.37%	Disposed	-4.6% (price as of 2026-08-21)
March 1, 2021	SLGN	A	6,900	—	—	23,332 Direct	+41.99%	Acquired	(price as of 2026-08-21)
March 1, 2021	SLGN	F	2,148	$38.33	$82,333	16,432 Direct	-11.56%	Disposed	7.4% (price as of 2026-08-21)
April 30, 2020	SLGN	S	5,112	$34.51	$176,415	18,580 Direct	-21.58%	Disposed	19.3% (price as of 2026-08-21)
May 16, 2018	SLGN	S	5,367	$27.24	$146,197	31,780 Direct	-14.45%	Disposed	51.1% (price as of 2026-08-21)
March 1, 2018	SLGN	A	8,100	—	—	37,147 Direct	+27.89%	Acquired	(price as of 2026-08-21)
March 1, 2018	SLGN	F	2,393	$28.55	$68,320	29,047 Direct	-7.61%	Disposed	44.2% (price as of 2026-08-21)
May 11, 2017	SLGN	S	3,204	$62.28	$199,545	15,720 Direct	-16.93%	Disposed	32.2% (price as of 2026-08-21)
March 1, 2017	SLGN	A	3,100	—	—	18,924 Direct	+19.59%	Acquired	(price as of 2026-08-21)
March 1, 2017	SLGN	F	1,488	$60.60	$90,173	15,824 Direct	-8.60%	Disposed	35.8% (price as of 2026-08-21)
Aug. 18, 2016	SLGN	S	1,000	$48.05	$48,050	17,312 Direct	-5.46%	Disposed	71.3% (price as of 2026-08-21)
May 11, 2016	SLGN	S	1,200	$51.57	$61,884	18,312 Direct	-6.15%	Disposed	59.6% (price as of 2026-08-21)
March 1, 2016	SLGN	A	4,100	—	—	19,512 Direct	+26.60%	Acquired	(price as of 2026-08-21)
March 1, 2016	SLGN	F	1,248	$51.57	$64,359	15,412 Direct	-7.49%	Disposed	59.6% (price as of 2026-08-21)
Feb. 25, 2016	SLGN	A	2,500	—	—	16,660 Direct	+17.66%	Acquired	(price as of 2026-08-21)
May 7, 2015	SLGN	S	2,271	$54.22	$123,134	14,160 Direct	-13.82%	Disposed	51.8% (price as of 2026-08-21)
March 1, 2015	SLGN	A	1,300	—	—	16,431 Direct	+8.59%	Acquired	(price as of 2026-08-21)
March 1, 2015	SLGN	F	1,129	$57.52	$64,940	15,131 Direct	-6.94%	Disposed	43.1% (price as of 2026-08-21)
Feb. 26, 2015	SLGN	A	2,500	—	—	16,260 Direct	+18.17%	Acquired	(price as of 2026-08-21)
May 13, 2014	SLGN	S	1,339	$49.26	$65,959	13,760 Direct	-8.87%	Disposed	67.1% (price as of 2026-08-21)
March 1, 2014	SLGN	A	6,900	—	—	15,099 Direct	+84.16%	Acquired	(price as of 2026-08-21)
March 1, 2014	SLGN	F	681	$48.19	$32,817	8,199 Direct	-7.67%	Disposed	70.8% (price as of 2026-08-21)
Aug. 22, 2013	SLGN	S	2,638	$48.25	$127,284	8,880 Direct	-22.90%	Disposed	70.6% (price as of 2026-08-21)
Aug. 1, 2013	SLGN	F	1,362	$49.48	$67,392	11,518 Direct	-10.57%	Disposed	66.4% (price as of 2026-08-21)
May 3, 2013	SLGN	S	756	$47.92	$36,228	12,880 Direct	-5.54%	Disposed	71.8% (price as of 2026-08-21)
March 1, 2013	SLGN	A	4,000	—	—	13,636 Direct	+41.51%	Acquired	(price as of 2026-08-21)
March 1, 2013	SLGN	F	464	$42.74	$19,831	9,636 Direct	-4.59%	Disposed	92.6% (price as of 2026-08-21)
Aug. 10, 2012	SLGN	S	2,682	$40.50	$108,621	10,100 Direct	-20.98%	Disposed	103.3% (price as of 2026-08-21)
Aug. 1, 2012	SLGN	F	1,318	$40.92	$53,933	12,782 Direct	-9.35%	Disposed	101.2% (price as of 2026-08-21)
March 1, 2012	SLGN	A	6,100	—	—	14,100 Direct	+76.25%	Acquired	(price as of 2026-08-21)
Aug. 11, 2011	SLGN	S	2,682	$37.00	$99,234	8,000 Direct	-25.11%	Disposed	122.5% (price as of 2026-08-21)
Aug. 1, 2011	SLGN	F	1,318	$39.05	$51,468	10,682 Direct	-10.98%	Disposed	110.8% (price as of 2026-08-21)
May 18, 2011	SLGN	S	2,204	$44.50	$98,078	12,000 Direct	-15.52%	Disposed	85.0% (price as of 2026-08-21)
Aug. 20, 2010	SLGN	S	700	$30.00	$21,000	14,204 Direct	-4.70%	Disposed	174.4% (price as of 2026-08-21)
Aug. 19, 2010	SLGN	S	1,300	$30.00	$39,000	14,904 Direct	-8.02%	Disposed	174.4% (price as of 2026-08-21)
Aug. 1, 2010	SLGN	F	1,298	$28.13	$36,513	16,204 Direct	-7.42%	Disposed	192.6% (price as of 2026-08-21)
Aug. 27, 2009	SLGN	S	600	$50.75	$30,450	8,751 Direct	-6.42%	Disposed	224.4% (price as of 2026-08-21)
Aug. 1, 2009	SLGN	F	649	$50.58	$32,826	9,351 Direct	-6.49%	Disposed	225.5% (price as of 2026-08-21)
Aug. 1, 2008	SLGN	A	10,000	—	—	10,000 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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
July 14, 2008	SLGN	Common Stock	0	Direct