AMERICAN CAPITAL MANAGEMENT INC

Position in PRLB — Proto Labs Inc

CIK 1320168 NEW YORK, NY

Position in PRLB

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$35,791,739

+$3,853,716 QoQ

Shares Held

627,705

-0.6% QoQ

Ownership

2.64%

of shares outstanding

% of Portfolio

1.93%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

16 quarters on record

Voting authority Sole 50.00135413928517.ToString("F0")% Shared 0.ToString("F0")% None 49.998645860714824.ToString("F0")%

Industrials · as of Mar 31, 2026

AMERICAN CAPITAL MANAGEMENT INC holds $35,791,739 across 1 Metal Fabrication name. PRLB ranks #1 (100.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	PRLB	Proto Labs Inc This page	627,705	$35,791,739

16 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$35,791,739	627,705	-0.6%	Shares	Sole	2026-05-15
2025-12-31	$31,938,023	631,311	+126.0%	Shares	Sole	2026-02-17
2025-09-30	$13,973,178	279,296	+417.0%	Shares	Sole	2025-11-14
2025-06-30	$2,163,241	54,027	+7.8%	Shares	Sole	2025-08-14
2025-03-31	$1,755,924	50,112	+648.4%	Shares	Sole	2025-05-15
2022-09-30	$243,935	6,696	-13.1%	Shares	Sole	2022-11-14
2022-06-30	$368,511	7,703	-84.7%	Shares	Sole	2022-08-15
2022-03-31	$2,671,132	50,494	-26.0%	Shares	Sole	2022-05-16
2021-12-31	$3,504,432	68,246	-25.2%	Shares	Sole	2022-02-14
2021-09-30	$6,075,518	91,224	-9.5%	Shares	Sole	2021-11-15
2021-06-30	$9,258,030	100,850	+2.0%	Shares	Sole	2021-08-13
2021-03-31	$12,033,039	98,834	-27.3%	Shares	Sole	2021-05-17
2020-12-31	$20,848,747	135,911	+1.0%	Shares	Sole	2021-02-16
2020-09-30	$17,428,369	134,582	-3.9%	Shares	Sole	2020-11-16
2020-06-30	$15,743,213	139,977	-0.7%	Shares	Sole	2020-08-13
2020-03-31	$10,731,437	140,962	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.